Questions on UI for WinForms Forum

1 answer

193 views

Drag & Drop between list views on differnt user controls

Hi,

I have a main form with a RadListView set to details view which is bound to a list of objects.

I also have a user control with two RadListViews set to details view bound to their own empty list of objects, same type as main.

On the main form when the user clicks on a button an instance of the user control is created and added to a panel on main form. So there can be multiple instances of the UC.

What I'm trying to do is allow the user to drag an item from the main form list and drop it on one of the lists within one of the instances of the user controls created at run time.

I have been trying to do this with the DragDropService, but I'm not getting the target list to update.

Assuming this is possible could you give me a simple example in c#.

Thanks in advance.

Cheers

Shaun

ListView

answered on 29 May 2017

1 answer

272 views

CellFormatting and Conditional Formatting

I have a GridView control that has a custom CellFormatting event implemented that detects if a row is to be deleted on save, sets the back colour to grey and makes the test italic.

Following recommended Telerik practice I apply ResetValue format to cells not affected by the above format condition.

All works great.

My problem occurs when a user applies a ConditionalFormat, it doesn't display. If I comment out the ResetValue commands, the user defined Conditional Formatting shows as expected.

Is there a way you can get the Conditional Formatting to be applied after the CellFormatting event, or call for the ConditionalFormatting to be applied from the CellFormatting event?

GridView

answered on 29 May 2017

3 answers

157 views

Scheduler timeline Reversed

Hi,

i have a problem with timeline in scheduler. the timline start to end is from right to left instead of left to right. i set the "righrToLeft" to false and also i changed the culture to en-US but no effect.

another question is about the Appointment text in Persion or Arabic.how can show the Text Correctly? currectly the Words are in Revese direction. i just found a solution by disable the useHtml in appointmentElement.

please help me!

thanks in advanced

Scheduler and Reminder

answered on 26 May 2017

1 answer

119 views

DateTimePicker Issue

On VB.NET when you type in the element you can type 1/3/88 and it will automatically parse it to 1/3/1988. But on the C# it does not do that you have to type the whole date....

Calendar, DateTimePicker, TimePicker and Clock

answered on 26 May 2017

2 answers

124 views

WMS Support

Hi,

how to add an OGS WMS/WFS to the map?

Map

answered on 26 May 2017

1 answer

70 views

radmulticolumncombobox Line positioning on combo opening

Hello to all,
When I open the radmulticolumncombobox I would like to place it on the line that contains the text in the textbox.
Instead, it is placed on the first line.
Does anyone know where I am wrong?

Thanks a lot

Fabrizio

General Discussions

answered on 26 May 2017

1 answer

106 views

Click fires DoubleClick

Hi all,

there is a strange behaviour when clicking a GridView:

I have a GridView with some rows in. By DoubleClicking a row the DoubleClick Event is fired and a new form will be loaded.

Now I'm doing a click (single click!) and the RadGridView fires a DoubleClick Event again!

If the new form will open in front of the GridView the next click will NOT fire a DoubleClick Event.

If the form will open beside the Grid a DoubleClick will be fired...

Seems to me that there is a dependency whether the Grid has the Focus or not.

How to prevent the Click to fire a DoubleClick?

GridView

answered on 26 May 2017

4 answers

338 views

Change Series Color at Runtime

Hi we are evaluating telerik controls for use in our application.

Problem: The series won't change colors when the color is set at runtime.

Background:
I'm using ChartFX Winforms 2009 Q2

I am creating a solution where a chart is embedded in a Grid cell.
I use the grid.cellformatting event to set the grid image if the rowinfo tag has not been set, much like is suggested in the telerik sample for: Multiple child views with RadGridView for WinForms

To simplify the test, I just default the series bar value to: "series.Appearance.FillStyle.MainColor = Drawing.Color.Green " (see bulleted line in code block below)

Eventually I need to add a piece of code that will set the series color based on the value. For now I have just defaulted the value to show as green.

I have referenced other posts in the forum and added the lines to updategraphics, refresh, and still could not get the series to turn green.

Code:

    
                Private _chart As New RadChart

    
             Private Sub PrepareChart() 
        
                    Dim radChart As New GridToleranceChart 
        
                    Me._chart = radChart.chart 
        
                    Me._chart.SkinsOverrideStyles = False 
        
                End Sub

GridToleranceChart is a usercontrol that has a radchart on it. I use an instance of this usercontrol, and reference its public chart property, so I could set some visual elements at designtime. PrepareChart is called when the form loads.

    
            Private Sub grid_CellFormatting(ByVal sender As Object, _ 
        
                    ByVal e As CellFormattingEventArgs) _ 
        
                    Handles grid.CellFormatting 
        
                    Dim column As GridViewDataColumn = TryCast(e.CellElement.ColumnInfo, GridViewImageColumn) 
        
                    If column IsNot Nothing AndAlso StrComp(column.FieldName, _ 
        
                        Constants.DefaultToleranceColumnNames.TolPercentChart, CompareMethod.Text) = 0 Then 
        
                        If e.CellElement.RowInfo.Tag Is Nothing Then 
        
                            Me._chart.Series.Clear() 
        
                            column.Width = 300 
        
                            column.AllowResize = False 
        
                            e.CellElement.RowElement.RowInfo.Height = 60 
        
                            Dim series As New Telerik.Charting.ChartSeries() 
        
                         series.Appearance.FillStyle.MainColor = Drawing.Color.Green 

                            series.Type = Telerik.Charting.ChartSeriesType.Bar 
        
                            series.Name = "percentOfTolSeries" 
        
                            series.Appearance.LabelAppearance.Visible = False 
        
                            ' Get the value to add to the series from another cell in the same row of the cell that is being edited 
        
                            ' Add the value to the series 
        
                            Dim rowInfo As GridViewRowInfo = TryCast(e.CellElement.RowInfo, GridViewDataRowInfo) 
        
                            Dim value As Decimal = CDec(rowInfo.Cells(Constants.DefaultToleranceColumnNames.PercentOfTol).Value) 
        
                            series.Items.Add(New Telerik.Charting.ChartSeriesItem(value)) 
        
                            Me._chart.Series.Add(series) 
        
                            Me._chart.Refresh() 
        
                            Me._chart.Update() 
        
                            Me._chart.UpdateGraphics() 
        
                            e.CellElement.RowInfo.Tag = Me._chart.GetBitmap() 
        
                        End If 
        
                        e.CellElement.Image = TryCast(e.CellElement.RowInfo.Tag, System.Drawing.Image) 
        
                        e.CellElement.ImageLayout = ImageLayout.Center 
        
                        e.CellElement.DrawBorder = False 
        
                        e.CellElement.Text = "" 
        
                        e.CellElement.Padding = New Padding(0, 0, 0, 0) 
        
                    End If 
        
                End Sub

Your help is greatly appreciated.

Chart (obsolete as of Q1 2013)

answered on 25 May 2017

1 answer

119 views

Problem With Checkbox

I have Gridview with checkbox column and data bound to datasource,

When i try to change checkbox status, it gives me Data Exception: "Column 'Ex' is read only"

how to make this event firing without commiting to database

GridView

answered on 25 May 2017

1 answer

211 views

PdfViewer fixed display

Hi,

I am using PdfViewer winform control in my project.
I want to display single page in viewer at a time. I found property "FixedDocumentPresenter" in silverlight controls.
This property is not available in winform control. Is there any way to achieve this. Please attach some code snippet.

Ref:-

http://docs.telerik.com/devtools/silverlight/controls/radpdfviewer/ui/document-presenters#using-fixeddocumentpagespresenter

Framework Details:
Telerik.WinControls.PdfViewer - Version : 2015.3.1104.40
OS - Windows 7 Ultimate x64

PdfViewer and PdfViewerNavigator