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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
207 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
91 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
78 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
265 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
206 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
99 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
157 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
0 answers
99 views
RadPane Tab Scrolling with Custom Headers

I am trying to get the RadPane tabs to scroll when overflowed, but it isn't working. I followed the example here, but it still does not scroll when enough tabs are made visible that exceed the visible width of the tab space. I am using a User Control for the tab header content instead of the standard String.

<telerik:RadDocking.DocumentHost>
  <telerik:RadSplitContainer Orientation="Vertical">
    <!-- Main Content -->
      <telerik:RadPaneGroup x:Name="PaneGroup1" 
                            ScrollViewer.HorizontalScrollBarVisibility="Auto"
                            DropDownDisplayMode="Visible">
        <!-- Schedule -->
        <telerik:RadPane CanUserClose="False" x:Name="RadPane_ScheduleItems" IsHidden="True"
                         telerik:RadDocking.SerializationTag="ScheduleItems.HeaderObj">
          <telerik:RadPane.Header>
            <uc:RadPaneHeader x:Name="RadPaneHeader_ScheduleItems"
                              Header="Schedule Items" />
          </telerik:RadPane.Header>
            <uc:ScheduleGridView x:Name="ScheduleItems" />
        </telerik:RadPane>

Tabs before and after are attached.

Docking
Johnathan
Top achievements
Rank 1
Iron
Iron
Iron
 asked on 05 Oct 2023
1 answer
93 views
DesktopAlertManager sopped displaying the alert

For several years I have been using the RadDesktopAlertManager in my application. Recently I noticed that it has stopped displaying the alert, but without any exceptions.

When I debug, everything works as expected, until I get to the .ShowAlert execution on the manager. Then this happens.

The rest of my code works just fine, and the only thing I am lacking is the alert... but this is of course an application wide outage.

Any ideas... missing a dll?  or....

DesktopAlert
hhgm
Top achievements
Rank 1
Iron
Iron
Iron
 answered on 04 Oct 2023
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