Telerik Forums
UI for WPF Forum
or
Ask question
All Questions
Unanswered
Answered
25,555 questions
0 answers
96 views
with AlternationCount="1" unable to expand RowDetailsTemplate.
When I add AlternationCount="1"  I am unable to expand RowDetailsTemplate. Please give the best solution where I can keep AlternationCount="1" as well as expand RowDetailsTemplate.
GridView
Azhar
Top achievements
Rank 1
Iron
 asked on 12 Oct 2023
7 answers
1.5K+ views
Need to change background color of a row based on a condition
I have a RadGridView control on a screen in my WPF program.  The GridView contains data from up to 3 different tables in my database.  I have implemented an Interface in the ViewModel objects so that the RadGridView can display them all.  (The RadGridViews ItemsSource property is set to an instance of an ObservableCollection of the interface). 

In addition, one of the types, called a Read, can have an array of another of the types, called Alarms.  The RadGridView has a RowDetailsTemplate that is only displayed when the number of rows in the Alarms array is greater than 0.  There is a column in the RadGridView which is of a custom type called CustomGridViewToggleRowDetailsColumn that I wrote.  This column displays the row detail toggle symbol only if the row is a Read and the Alarms array's length is bigger than 2.

All of this is working very well.  Now, however, I need to change the background color of any row that has Alarms associated with it.  Can I use the RowStyle and RowStyleSelector properties to do this?  Just exactly how do I make this happen?

Thanks

Tony
GridView
Azhar
Top achievements
Rank 1
Iron
 answered on 12 Oct 2023
0 answers
91 views
NullReferenceException on RadSpreadSheet

Hello guys,

I'm using the RadSpreadsheet component since 3 months. I dont have any difficulties with it, except since this week I met a very strange behavior. In my context, the RadSpreadsheet is loaded from a csv file deserialization, some calculation are replaced by the numeric values and some cells are read to say if the results is good or not. I have a UserControl which contains only the RadSpreadsheet and RadFormulaBar components, with a dedicated ViewModel.

The fact is that sometimes, during the process, some NullReferenceException are thrown and the process is cut. The StackTrace provides big traces into the Telerik environment.

Example of piece of code generating the error:

        Private Sub SelectCell(cell As String)
            Dim columnNumber As Integer = 0
            Dim rowNumber As Integer = 0

            AerodynamicTableController.ConvertNumbersToExcelCoordinates(cell, columnNumber, rowNumber)

            Dim selection As Selection = Me.sprdSheet.ActiveWorksheetEditor.Selection
            selection.Select(New CellRange(rowNumber, columnNumber, rowNumber, columnNumber))
        End Sub

The StackTrace (the GetValueAsNonArrayConstantExpression method needs expression variable which is null):

at Telerik.Windows.Documents.Spreadsheet.Expressions.ExpressionExtensions.GetValueAsNonArrayConstantExpression(RadExpression expression, Boolean popupArrayErrors)
   at Telerik.Windows.Documents.Spreadsheet.Expressions.ExpressionExtensions.GetValueAsNonArrayConstantExpression(RadExpression expression, Boolean popupArrayErrors)
   at Telerik.Windows.Documents.Spreadsheet.Expressions.ExpressionExtensions.GetValueAsConstantExpression(RadExpression expression)
   at Telerik.Windows.Documents.Spreadsheet.Model.FormulaCellValue.GetResultValueAsCellValue()
   at Telerik.Windows.Documents.Spreadsheet.Layout.RadWorksheetLayout.CalculateCellProperties(List`1 cellIndexes)
   at Telerik.Windows.Documents.Spreadsheet.Layout.RadWorksheetLayout.UpdateCellContentSizesCache()
   at Telerik.Windows.Documents.Spreadsheet.Layout.RadWorksheetLayout.Measure()
   at Telerik.Windows.Documents.Spreadsheet.Layout.RadWorksheetLayout.Measure(CellIndex frozenCellIndex)
   at Telerik.Windows.Controls.Spreadsheet.Worksheets.NormalWorksheetEditorPresenter.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at MS.Internal.Helper.MeasureElementWithSingleChild(UIElement element, Size constraint)
   at System.Windows.Controls.ContentPresenter.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Controls.Control.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Controls.Border.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Controls.Grid.MeasureCell(Int32 cell, Boolean forceInfinityV)
   at System.Windows.Controls.Grid.MeasureCellsGroup(Int32 cellsHead, Size referenceSize, Boolean ignoreDesiredSizeU, Boolean forceInfinityV, Boolean& hasDesiredSizeUChanged)
   at System.Windows.Controls.Grid.MeasureCellsGroup(Int32 cellsHead, Size referenceSize, Boolean ignoreDesiredSizeU, Boolean forceInfinityV)
   at System.Windows.Controls.Grid.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Controls.Control.MeasureOverride(Size constraint)
   at Telerik.Windows.Controls.Spreadsheet.Worksheets.RadWorksheetEditor.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at MS.Internal.Helper.MeasureElementWithSingleChild(UIElement element, Size constraint)
   at System.Windows.Controls.ContentPresenter.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Controls.Control.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Controls.Grid.MeasureCell(Int32 cell, Boolean forceInfinityV)
   at System.Windows.Controls.Grid.MeasureCellsGroup(Int32 cellsHead, Size referenceSize, Boolean ignoreDesiredSizeU, Boolean forceInfinityV, Boolean& hasDesiredSizeUChanged)
   at System.Windows.Controls.Grid.MeasureCellsGroup(Int32 cellsHead, Size referenceSize, Boolean ignoreDesiredSizeU, Boolean forceInfinityV)
   at System.Windows.Controls.Grid.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Controls.Grid.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Controls.Control.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Controls.Grid.MeasureCell(Int32 cell, Boolean forceInfinityV)
   at System.Windows.Controls.Grid.MeasureCellsGroup(Int32 cellsHead, Size referenceSize, Boolean ignoreDesiredSizeU, Boolean forceInfinityV, Boolean& hasDesiredSizeUChanged)
   at System.Windows.Controls.Grid.MeasureCellsGroup(Int32 cellsHead, Size referenceSize, Boolean ignoreDesiredSizeU, Boolean forceInfinityV)
   at System.Windows.Controls.Grid.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at MS.Internal.Helper.MeasureElementWithSingleChild(UIElement element, Size constraint)
   at System.Windows.Controls.ContentPresenter.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Controls.Grid.MeasureCell(Int32 cell, Boolean forceInfinityV)
   at System.Windows.Controls.Grid.MeasureCellsGroup(Int32 cellsHead, Size referenceSize, Boolean ignoreDesiredSizeU, Boolean forceInfinityV, Boolean& hasDesiredSizeUChanged)
   at System.Windows.Controls.Grid.MeasureCellsGroup(Int32 cellsHead, Size referenceSize, Boolean ignoreDesiredSizeU, Boolean forceInfinityV)
   at System.Windows.Controls.Grid.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Controls.Control.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at MS.Internal.Helper.MeasureElementWithSingleChild(UIElement element, Size constraint)
   at System.Windows.Controls.ContentPresenter.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Controls.Border.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Controls.Control.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Controls.Grid.MeasureCell(Int32 cell, Boolean forceInfinityV)
   at System.Windows.Controls.Grid.MeasureCellsGroup(Int32 cellsHead, Size referenceSize, Boolean ignoreDesiredSizeU, Boolean forceInfinityV, Boolean& hasDesiredSizeUChanged)
   at System.Windows.Controls.Grid.MeasureCellsGroup(Int32 cellsHead, Size referenceSize, Boolean ignoreDesiredSizeU, Boolean forceInfinityV)
   at System.Windows.Controls.Grid.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at MS.Internal.Helper.MeasureElementWithSingleChild(UIElement element, Size constraint)
   at System.Windows.Controls.ContentPresenter.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Controls.Border.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Controls.Control.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Controls.Grid.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at MS.Internal.Helper.MeasureElementWithSingleChild(UIElement element, Size constraint)
   at System.Windows.Controls.ContentPresenter.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Controls.Control.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Controls.Grid.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at MS.Internal.Helper.MeasureElementWithSingleChild(UIElement element, Size constraint)
   at System.Windows.Controls.ContentPresenter.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Controls.Control.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Controls.Grid.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Controls.Control.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at MS.Internal.Helper.MeasureElementWithSingleChild(UIElement element, Size constraint)
   at System.Windows.Controls.ContentPresenter.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Controls.Grid.MeasureCell(Int32 cell, Boolean forceInfinityV)
   at System.Windows.Controls.Grid.MeasureCellsGroup(Int32 cellsHead, Size referenceSize, Boolean ignoreDesiredSizeU, Boolean forceInfinityV, Boolean& hasDesiredSizeUChanged)
   at System.Windows.Controls.Grid.MeasureCellsGroup(Int32 cellsHead, Size referenceSize, Boolean ignoreDesiredSizeU, Boolean forceInfinityV)
   at System.Windows.Controls.Grid.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Documents.AdornerDecorator.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Controls.Grid.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Controls.Border.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Controls.Grid.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Controls.Control.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at MS.Internal.Helper.MeasureElementWithSingleChild(UIElement element, Size constraint)
   at System.Windows.Controls.ContentPresenter.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Documents.AdornerDecorator.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Controls.Border.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Window.MeasureOverrideHelper(Size constraint)
   at System.Windows.Window.MeasureOverride(Size availableSize)
   at Telerik.Windows.Controls.InternalWindow.ChromelessWindowHelper.WindowHostWindow.MeasureOverride(Size availableSize)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.ContextLayoutManager.UpdateLayout()
   at System.Windows.UIElement.UpdateLayout()
   at MS.Internal.Documents.DocumentPageTextView.Validate()
   at MS.Internal.Documents.DocumentPageTextView.Validate(ITextPointer position)
   at MS.Internal.Documents.TextViewBase.System.Windows.Documents.ITextView.Validate(ITextPointer position)
   at System.Windows.Documents.TextPointer.GetLineStartPosition(Int32 count, Int32& actualCount)
   at Telerik.Windows.Controls.Spreadsheet.Worksheets.CellEditorBase.ScrollToCaret()
   at Telerik.Windows.Controls.Spreadsheet.Controls.RadSpreadsheetFormulaBar.SetFormulaBarTextBoxCaretToStart()
   at Telerik.Windows.Controls.Spreadsheet.Controls.RadSpreadsheetFormulaBar.UpdateFormulaBarTextFromSelectedCell()
   at Telerik.Windows.Controls.Spreadsheet.Controls.RadSpreadsheetFormulaBar.Selection_SelectionChanged(Object sender, EventArgs e)
   at System.EventHandler.Invoke(Object sender, EventArgs e)
   at Telerik.Windows.Controls.Spreadsheet.Worksheets.SelectionBase.OnSelectionChanged()
   at Telerik.Windows.Controls.Spreadsheet.Worksheets.Selection.OnSelectionChanged()
   at Telerik.Windows.Controls.Spreadsheet.Worksheets.SelectionBase.RaiseSelectionChanged()
   at Telerik.Windows.Controls.Spreadsheet.Worksheets.SelectionBase.SelectInternal(CellIndex fromIndex, CellIndex toIndex, Boolean clearSelection)
   at Telerik.Windows.Controls.Spreadsheet.Worksheets.SelectionBase.Select(CellIndex fromIndex, CellIndex toIndex, Boolean clearSelection)
   at Telerik.Windows.Controls.Spreadsheet.Worksheets.SelectionBase.Select(CellRange cellRange, Boolean clearSelection)
   at Portal_View.Aerodynamic.SpreadSheetView.SelectCell(String cell) in C:\Users\ng707d2\Documents\aDEV\MAA\Sources\WPFPortal\Portal_View\Aerodynamic\Views\SpreadSheetView.xaml.vb:line 193

For this case, I have cheated using a Try Catch statement and the Thread.Sleep() method, andit seems that this piece of code "cancels" the issue:

            Try
                selection.Select(New CellRange(rowNumber, columnNumber, rowNumber, columnNumber))
            Catch ex As Exception
                Threading.Thread.Sleep(200)
                selection.Select(New CellRange(rowNumber, columnNumber, rowNumber, columnNumber))
            End Try

It's like if the RadSpreadsheet component isn't totally build before I'm using it.

But even using my cheat above, I have another NullReferenceException, but I don't know what's the error source because it's catched by my application CurrentDispatcherUnhandledException event:

   at Telerik.Windows.Documents.Spreadsheet.Expressions.ExpressionExtensions.GetValueAsNonArrayConstantExpression(RadExpression expression, Boolean popupArrayErrors)
   at Telerik.Windows.Documents.Spreadsheet.Expressions.ExpressionExtensions.GetValueAsNonArrayConstantExpression(RadExpression expression, Boolean popupArrayErrors)
   at Telerik.Windows.Documents.Spreadsheet.Expressions.ExpressionExtensions.GetValueAsConstantExpression(RadExpression expression)
   at Telerik.Windows.Documents.Spreadsheet.Model.FormulaCellValue.GetResultValueAsCellValue()
   at Telerik.Windows.Documents.Spreadsheet.Layout.RadWorksheetLayout.CalculateCellProperties(List`1 cellIndexes)
   at Telerik.Windows.Documents.Spreadsheet.Layout.RadWorksheetLayout.UpdateCellContentSizesCache()
   at Telerik.Windows.Documents.Spreadsheet.Layout.RadWorksheetLayout.Measure()
   at Telerik.Windows.Documents.Spreadsheet.Layout.RadWorksheetLayout.Measure(CellIndex frozenCellIndex)
   at Telerik.Windows.Controls.Spreadsheet.Worksheets.NormalWorksheetEditorPresenter.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at MS.Internal.Helper.MeasureElementWithSingleChild(UIElement element, Size constraint)
   at System.Windows.Controls.ContentPresenter.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Controls.Control.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Controls.Border.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Controls.Grid.MeasureCell(Int32 cell, Boolean forceInfinityV)
   at System.Windows.Controls.Grid.MeasureCellsGroup(Int32 cellsHead, Size referenceSize, Boolean ignoreDesiredSizeU, Boolean forceInfinityV, Boolean& hasDesiredSizeUChanged)
   at System.Windows.Controls.Grid.MeasureCellsGroup(Int32 cellsHead, Size referenceSize, Boolean ignoreDesiredSizeU, Boolean forceInfinityV)
   at System.Windows.Controls.Grid.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Controls.Control.MeasureOverride(Size constraint)
   at Telerik.Windows.Controls.Spreadsheet.Worksheets.RadWorksheetEditor.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at MS.Internal.Helper.MeasureElementWithSingleChild(UIElement element, Size constraint)
   at System.Windows.Controls.ContentPresenter.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Controls.Control.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Controls.Grid.MeasureCell(Int32 cell, Boolean forceInfinityV)
   at System.Windows.Controls.Grid.MeasureCellsGroup(Int32 cellsHead, Size referenceSize, Boolean ignoreDesiredSizeU, Boolean forceInfinityV, Boolean& hasDesiredSizeUChanged)
   at System.Windows.Controls.Grid.MeasureCellsGroup(Int32 cellsHead, Size referenceSize, Boolean ignoreDesiredSizeU, Boolean forceInfinityV)
   at System.Windows.Controls.Grid.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Controls.Grid.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Controls.Control.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Controls.Grid.MeasureCell(Int32 cell, Boolean forceInfinityV)
   at System.Windows.Controls.Grid.MeasureCellsGroup(Int32 cellsHead, Size referenceSize, Boolean ignoreDesiredSizeU, Boolean forceInfinityV, Boolean& hasDesiredSizeUChanged)
   at System.Windows.Controls.Grid.MeasureCellsGroup(Int32 cellsHead, Size referenceSize, Boolean ignoreDesiredSizeU, Boolean forceInfinityV)
   at System.Windows.Controls.Grid.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at MS.Internal.Helper.MeasureElementWithSingleChild(UIElement element, Size constraint)
   at System.Windows.Controls.ContentPresenter.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Controls.Grid.MeasureCell(Int32 cell, Boolean forceInfinityV)
   at System.Windows.Controls.Grid.MeasureCellsGroup(Int32 cellsHead, Size referenceSize, Boolean ignoreDesiredSizeU, Boolean forceInfinityV, Boolean& hasDesiredSizeUChanged)
   at System.Windows.Controls.Grid.MeasureCellsGroup(Int32 cellsHead, Size referenceSize, Boolean ignoreDesiredSizeU, Boolean forceInfinityV)
   at System.Windows.Controls.Grid.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Controls.Control.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at MS.Internal.Helper.MeasureElementWithSingleChild(UIElement element, Size constraint)
   at System.Windows.Controls.ContentPresenter.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Controls.Border.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Controls.Control.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Controls.Grid.MeasureCell(Int32 cell, Boolean forceInfinityV)
   at System.Windows.Controls.Grid.MeasureCellsGroup(Int32 cellsHead, Size referenceSize, Boolean ignoreDesiredSizeU, Boolean forceInfinityV, Boolean& hasDesiredSizeUChanged)
   at System.Windows.Controls.Grid.MeasureCellsGroup(Int32 cellsHead, Size referenceSize, Boolean ignoreDesiredSizeU, Boolean forceInfinityV)
   at System.Windows.Controls.Grid.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at MS.Internal.Helper.MeasureElementWithSingleChild(UIElement element, Size constraint)
   at System.Windows.Controls.ContentPresenter.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Controls.Border.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Controls.Control.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Controls.Grid.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at MS.Internal.Helper.MeasureElementWithSingleChild(UIElement element, Size constraint)
   at System.Windows.Controls.ContentPresenter.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Controls.Control.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Controls.Grid.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at MS.Internal.Helper.MeasureElementWithSingleChild(UIElement element, Size constraint)
   at System.Windows.Controls.ContentPresenter.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Controls.Control.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Controls.Grid.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Controls.Control.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at MS.Internal.Helper.MeasureElementWithSingleChild(UIElement element, Size constraint)
   at System.Windows.Controls.ContentPresenter.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Controls.Grid.MeasureCell(Int32 cell, Boolean forceInfinityV)
   at System.Windows.Controls.Grid.MeasureCellsGroup(Int32 cellsHead, Size referenceSize, Boolean ignoreDesiredSizeU, Boolean forceInfinityV, Boolean& hasDesiredSizeUChanged)
   at System.Windows.Controls.Grid.MeasureCellsGroup(Int32 cellsHead, Size referenceSize, Boolean ignoreDesiredSizeU, Boolean forceInfinityV)
   at System.Windows.Controls.Grid.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Documents.AdornerDecorator.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Controls.Grid.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Controls.Border.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Controls.Grid.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Controls.Control.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at MS.Internal.Helper.MeasureElementWithSingleChild(UIElement element, Size constraint)
   at System.Windows.Controls.ContentPresenter.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Documents.AdornerDecorator.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Controls.Border.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Window.MeasureOverrideHelper(Size constraint)
   at System.Windows.Window.MeasureOverride(Size availableSize)
   at Telerik.Windows.Controls.InternalWindow.ChromelessWindowHelper.WindowHostWindow.MeasureOverride(Size availableSize)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.ContextLayoutManager.UpdateLayout()
   at System.Windows.UIElement.UpdateLayout()
   at MS.Internal.Documents.DocumentPageTextView.Validate()
   at MS.Internal.Documents.DocumentPageTextView.Validate(ITextPointer position)
   at MS.Internal.Documents.TextViewBase.System.Windows.Documents.ITextView.Validate(ITextPointer position)
   at System.Windows.Documents.TextPointer.GetLineStartPosition(Int32 count, Int32& actualCount)
   at Telerik.Windows.Controls.Spreadsheet.Worksheets.CellEditorBase.ScrollToCaret()
   at Telerik.Windows.Controls.Spreadsheet.Controls.RadSpreadsheetFormulaBar.SetFormulaBarTextBoxCaretToStart()
   at Telerik.Windows.Controls.Spreadsheet.Controls.RadSpreadsheetFormulaBar.UpdateFormulaBarTextFromSelectedCell()
   at Telerik.Windows.Controls.Spreadsheet.Controls.RadSpreadsheetFormulaBar.<>c__DisplayClass9.<Cells_CellPropertyChanged>b__8()
   at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
   at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)

--

You can find below the csv file content used by the deserialization process:

;ZONE;ID;M;Altitude(ft);ISA(ºC);x(m);Flat Plate BL Method;do you know M1?;Cp;M1 Known;h(mm);Gap (mm);w(mm);a (º);r(mm);b (º);forward-rearward;Forward Chamfer;M1;d_fp(mm);Cf1_fp;Cf1_Known;Cf1_option;CD_Step;Sref(m^2);q1/qinf;md;CD(d.c.);;Title30;Title31;Title32;Title33;Title34;Title35;Title36;Title37;Title38;Title39;Title40
1;C1;LER_1;0,85;35000;0;10;ESDU_00006;NO;-0,124;0,85;{MF}[AL000_AB0001C_AL_0000_14A].F_Actual;{MF}[AL000_AB0001C_AL_0000_14A].G_Actual;24,8;16,7;0;19,8;RWD;0;0,91;109,8;0,001775;0,002289;Known;"{SF}=CD_STEP(E2;D2;F2;I2;J2;K2;W2;L2;R2;Q2;O2;S2;P2)";432,1;"{SF}=Q1_Q(E2;D2;F2;I2;J2;K2)";1;{SF}=Y2*L2*N2*AA2*1E-06*10000/Z2;{SF}=SUM(AC2:AC11);;;;0,4;-0,4
2;C1;LER_1;0,85;35000;0;10;ESDU_00006;NO;-0,124;0,85;{MF}[AL000_AB0001C_AL_0001_14A].F_Actual;{MF}[AL000_AB0001C_AL_0001_14A].G_Actual;24,8;16,7;0;19,7;RWD;0;0,91;109,8;0,001775;0,002307;Known;"{SF}=CD_STEP(E3;D3;F3;I3;J3;K3;W3;L3;R3;Q3;O3;S3;P3)";432,1;"{SF}=Q1_Q(E3;D3;F3;I3;J3;K3)";1;{SF}=Y3*L3*N3*AA3*1E-06*10000/Z3;;;;Kc_Min;0,001777;0,0015;{SF}=AVERAGE(AH3:AI3)
3;C1;LER_1;0,85;35000;0;10;ESDU_00006;NO;-0,123;0,85;{MF}[AL000_AB0001C_AL_0002_14A].F_Actual;{MF}[AL000_AB0001C_AL_0002_14A].G_Actual;24,8;16,7;0;19,6;RWD;0;0,91;109,8;0,001775;0,002327;Known;"{SF}=CD_STEP(E4;D4;F4;I4;J4;K4;W4;L4;R4;Q4;O4;S4;P4)";432,1;"{SF}=Q1_Q(E4;D4;F4;I4;J4;K4)";1;{SF}=Y4*L4*N4*AA4*1E-06*10000/Z4
4;C1;LER_1;0,85;35000;0;10;ESDU_00006;NO;-0,123;0,85;{MF}[AL000_AB0001C_AL_0003_14A].F_Actual;{MF}[AL000_AB0001C_AL_0003_14A].G_Actual;24,8;16,7;0;19,5;RWD;0;0,91;109,8;0,001775;0,00235;Known;"{SF}=CD_STEP(E5;D5;F5;I5;J5;K5;W5;L5;R5;Q5;O5;S5;P5)";432,1;"{SF}=Q1_Q(E5;D5;F5;I5;J5;K5)";1;{SF}=Y5*L5*N5*AA5*1E-06*10000/Z5
5;C1;LER_1;0,85;35000;0;10;ESDU_00006;NO;-0,122;0,85;{MF}[AL000_AB0001C_AL_0004_14A].F_Actual;{MF}[AL000_AB0001C_AL_0004_14A].G_Actual;24,8;16,7;0;19,4;RWD;0;0,91;109,8;0,001775;0,002368;Known;"{SF}=CD_STEP(E6;D6;F6;I6;J6;K6;W6;L6;R6;Q6;O6;S6;P6)";432,1;"{SF}=Q1_Q(E6;D6;F6;I6;J6;K6)";1;{SF}=Y6*L6*N6*AA6*1E-06*10000/Z6
6;C1;LER_1;0,85;35000;0;10;ESDU_00006;NO;-0,121;0,85;{MF}[AL000_AB0001C_AL_0005_14A].F_Actual;{MF}[AL000_AB0001C_AL_0005_14A].G_Actual;24,8;16,7;0;19,2;RWD;0;0,91;109,8;0,001776;0,002389;Known;"{SF}=CD_STEP(E7;D7;F7;I7;J7;K7;W7;L7;R7;Q7;O7;S7;P7)";432,1;"{SF}=Q1_Q(E7;D7;F7;I7;J7;K7)";1;{SF}=Y7*L7*N7*AA7*1E-06*10000/Z7
7;C2;LER_1;0,85;35000;0;10;ESDU_00006;NO;-0,12;0,85;{MF}[AL000_AB0001C_AL_0006_14A].F_Actual;{MF}[AL000_AB0001C_AL_0006_14A].G_Actual;24,8;2,86;0;19,1;RWD;0;0,91;109,8;0,001776;0,00241;Known;"{SF}=CD_STEP(E8;D8;F8;I8;J8;K8;W8;L8;R8;Q8;O8;S8;P8)";432,1;"{SF}=Q1_Q(E8;D8;F8;I8;J8;K8)";1;{SF}=Y8*L8*N8*AA8*1E-06*10000/Z8
8;C2;LER_1;0,85;35000;0;10;ESDU_00006;NO;-0,119;0,85;{MF}[AL000_AB0001C_AL_0007_14A].F_Actual;{MF}[AL000_AB0001C_AL_0007_14A].G_Actual;24,8;2,86;0;19;RWD;0;0,91;109,8;0,001776;0,002432;Known;"{SF}=CD_STEP(E9;D9;F9;I9;J9;K9;W9;L9;R9;Q9;O9;S9;P9)";432,1;"{SF}=Q1_Q(E9;D9;F9;I9;J9;K9)";1;{SF}=Y9*L9*N9*AA9*1E-06*10000/Z9
9;C2;LER_1;0,85;35000;0;10;ESDU_00006;NO;-0,117;0,85;{MF}[AL000_AB0001C_AL_0008_14A].F_Actual;{MF}[AL000_AB0001C_AL_0008_14A].G_Actual;24,8;2,86;0;18,9;RWD;0;0,91;109,8;0,001776;0,002455;Known;"{SF}=CD_STEP(E10;D10;F10;I10;J10;K10;W10;L10;R10;Q10;O10;S10;P10)";432,1;"{SF}=Q1_Q(E10;D10;F10;I10;J10;K10)";1;{SF}=Y10*L10*N10*AA10*1E-06*10000/Z10
10;C2;LER_1;0,85;35000;0;10;ESDU_00006;NO;-0,116;0,85;{MF}[AL000_AB0001C_AL_0009_14A].F_Actual;{MF}[AL000_AB0001C_AL_0009_14A].G_Actual;24,8;2,86;0;18,7;RWD;0;0,91;109,8;0,001777;0,00248;Known;"{SF}=CD_STEP(E11;D11;F11;I11;J11;K11;W11;L11;R11;Q11;O11;S11;P11)";432,1;"{SF}=Q1_Q(E11;D11;F11;I11;J11;K11)";1;{SF}=Y11*L11*N11*AA11*1E-06*10000/Z11

The {SF} flag is removed juste after the deserialization. 

The {MF} is replaced by a numeric value during the process.

--

I understand that this case is very strange and complicated to analyze, but do you have any information about these exceptions? I'm using the 2021.1.222.40 Telerik version. I can't really provide you a sample project because it is too big and too sensitive (business environment).

Many thanks.

Valentin M.

Spreadsheet
Valentin
Top achievements
Rank 2
Iron
Iron
Iron
 asked on 11 Oct 2023
0 answers
187 views
Changing Check style in GridViewCheckBoxColumn

Dear Team Telerik

 

Hello. I want to change the style of check in GridViewCheckBoxColumn.

For example, is it possible change check figure to OK OR NG figure?

If it's possible plz let me know

Thanks.

Badge
HS
Top achievements
Rank 1
 asked on 11 Oct 2023
0 answers
86 views
Applied Filter not displaying data after refreshing the data by a service call

Hi Telerik Team,
In my RadGridView I have 100 items, I'm applying filters for 2 columns.
The data is filtered and shows 2 items now.

I'm editing some columns (which are not filtered columns) and saving it.

After save, I'm calling the service to retrieve the 100 items (it means I'm refreshing the data).

The data is retrieved, but the RadGridView displays empty as the applied filter not works correctly.

It should display the same 2 records.

If I try clearing any one filter, it displays records based on 1 applied filter.

Please provide a fix for this. I want the filter to be applied after refreshing also.

Awaiting for your reply.

Thanks and Regards,
Muhammad Azhar Shah

GridView
Premkumar
Top achievements
Rank 1
Iron
Iron
 asked on 10 Oct 2023
0 answers
67 views
What would be the best way to go about recreating the windows 11 settings panel?

Currently, I am working with RadNavigationView but I feel like I don't need dynamically bound DataContext because each settings tab would be different with various buttons. I tried RadTabControl but it isn't exactly what I'm going for style-wise. If anyone has any ideas please let me know.

Here is what I'm referencing.

Buttons
GridView
NavigationView (Hamburger Menu)
Jake
Top achievements
Rank 1
 asked on 09 Oct 2023
1 answer
225 views
Tab Navigation in RadGridView
Hello Telerik Team,

I'm using RadGridView and having 40+ coulmns in it, out of which almost 20 columns are editable.

It means I'm having controls inside CellTemplate to select or to enter the data.

I want to jump to each control on pressing Tab key.

If I set IsTabStop="False" for the RadGridView, then it jumps as expected. But, I'm not able to jump to the hidden columns behind horizontal scrollbar due to column virtualization is enabled and hence it jumps to the next row.

If I disable the column virtualization, it jumps to the hidden column's control, but horizontal scrollbar is not moving correspondingly.

If I remove the IsTabStop property for the RadGridView and by setting TabStopMode="Skip" for the non editable columns, it jumps to the editable columns correctly and the scrollbar is also moving corresponding to the focus. But, it is not directly focusing on the controls inside CellTemplate, instead it focuses on the Cells on pressing Tab key. I need to press one more time to focus on the control.

Is there any possible way to focus on the control instead of Cell, and the scrollbar also moves correspondingly when the virtualization is on.

Please advise.

Note:
When I tried by setting Column Virtualization off, the performance is very poor as it has more number of columns and rows.


Thanks and Regards,
Muhammad Azhar Shah
GridView
Stenly
Telerik team
 answered on 09 Oct 2023
1 answer
185 views
Desktop Alert+ Customization

Hi,

1-How can I implement the following two images in WPF desktop alert?

2-Is it possible to adjust the height automatically based on the content?

DesktopAlert
Sarah
Top achievements
Rank 1
Iron
 updated answer on 09 Oct 2023
1 answer
95 views
Is there a Filtered event on the VirtualGrid control?
I need a way to determine that the user has applied a column filter in the VirtualGrid control so I can update another control in my UI. Is there a way to determine when a filter has been applied or cleared?
VirtualGrid
Martin Ivanov
Telerik team
 answered on 09 Oct 2023
0 answers
141 views
System.ThrowHelper.ThrowArgumentOutOfRangeException

Hello,

I use telerik for  wpf. And now I have some problems with my application. 

it suddenly breaks and closes. I used "try catch", but it didn't help me.  
I have errors in the windows journal on my computer.
I attached these error messages.
I hope for your help.
GridView
Shukhrat
Top achievements
Rank 1
 updated question on 06 Oct 2023
Narrow your results
Done
Selected tags
Tags
GridView
General Discussions
Chart
RichTextBox
Docking
ScheduleView
ChartView
TreeView
Diagram
Map
ComboBox
TreeListView
Window
RibbonView and RibbonWindow
PropertyGrid
DragAndDrop
TabControl
TileView
Carousel
DataForm
PDFViewer
MaskedInput (Numeric, DateTime, Text, Currency)
AutoCompleteBox
DatePicker
Buttons
GanttView
ListBox
PivotGrid
Spreadsheet
Gauges
NumericUpDown
PanelBar
DataFilter
DateTimePicker
Menu
ContextMenu
TimeLine
Calendar
Installer and Visual Studio Extensions
ImageEditor
BusyIndicator
Slider
Expander
TileList
PersistenceFramework
DataPager
TimeBar
Styling
OutlookBar
TransitionControl
Book
FileDialogs
ToolBar
ColorPicker
TimePicker
SyntaxEditor
MultiColumnComboBox
VirtualGrid
Wizard
ExpressionEditor
NavigationView (Hamburger Menu)
DesktopAlert
WatermarkTextBox
BarCode
SpellChecker
DataServiceDataSource
EntityFrameworkDataSource
RadialMenu
ChartView3D
Data Virtualization
BreadCrumb
ProgressBar
Sparkline
LayoutControl
TabbedWindow
ToolTip
CloudUpload
ColorEditor
TreeMap and PivotMap
EntityFrameworkCoreDataSource (.Net Core)
HeatMap
Chat (Conversational UI)
VirtualizingWrapPanel
Calculator
NotifyIcon
TaskBoard
TimeSpanPicker
BulletGraph
CardView
DataBar
WebCam
FilePathPicker
Licensing
PasswordBox
Rating
SplashScreen
Accessibility
Callout
CollectionNavigator
Localization
AutoSuggestBox
HighlightTextBlock
Security
TouchManager
StepProgressBar
VirtualKeyboard
Badge
OfficeNavigationBar
ExpressionParser
CircularProgressBar
SvgImage
PipsPager
SlideView
+? more
Top users last month
Rob
Top achievements
Rank 3
Iron
Iron
Iron
Atul
Top achievements
Rank 1
Iron
Iron
Iron
Alexander
Top achievements
Rank 1
Veteran
Iron
Serkan
Top achievements
Rank 1
Iron
Shawn
Top achievements
Rank 1
Iron
Iron
Want to show your ninja superpower to fellow developers?
Learn how
49 50
51
52 53
Top users last month
Rob
Top achievements
Rank 3
Iron
Iron
Iron
Atul
Top achievements
Rank 1
Iron
Iron
Iron
Alexander
Top achievements
Rank 1
Veteran
Iron
Serkan
Top achievements
Rank 1
Iron
Shawn
Top achievements
Rank 1
Iron
Iron
Want to show your ninja superpower to fellow developers?
Learn how
Want to show your ninja superpower to fellow developers?
Learn how