With the release 2020.1.115 the following changes were made:
The RowValidating event is now fired when the UI virtualization prepares a row to be shown in the viewport. There is a new value in the GridViewEditOperationType enum - None for this specific case.
I need the behaviour before this release. So when UI virtualization prepares a row to be shown in the viewport the validation should not take place. Only when a cell was edited / changed. I need the ValidationResults which are not provided in RowEditEnded Event.
What do I have to change in this case?

Shape DragEnter doesn't work like ContainerShape does
RadDiagramContainerShape has OnDragEnter Event. so, on Diagram, if i drag shape into Containershape then DragEnter, DragOver, DragLeave are worked.
but Shape doesn't have DragEnter and DragOver.
i want to do senario if shape is dragged to other shape then other shape's DragEnter event is activated.
i tried to handle DragEnter on shape,
"DragDropManager.AddDragEnterHandler(this, MyDragEnterEventMethod);" in Customshape implements RadDiagramShape,
but, MyDragEnterEventMethod doesn't work when shape is dragged to other shape on Diagram.
MyDragEnterEventMethod only work when control DragContent to DragDropManager.AddDragInitializeHandler.
DragDropManager.AddDragInitializeHandler Code is below
DragDropManager.AddDragInitializeHandler(this.diagram, OnDragSourceDragInitialize);
and OnDragSourceDragInitialize Code is below
private void OnDragSourceDragInitialize(object sender, DragInitializeEventArgs e)
{
this.dragVisualControl.Content = this.PrepareDragVisualTypeB(e.OriginalSource as RadDiagramShape);
e.DragVisual = this.dragVisualControl;
e.DragVisualOffset = e.RelativeStartPoint;
e.AllowedEffects = DragDropEffects.All;
}
How do i Activate Shape DragEnter, DragOver, DragLeave like ContainerShape does?
i need to cases
case 1. when it dragged "Shape1" to "Shape2", "Shape2"'s Drag Enter is activated.
case 2. when it dropped "Shape1" to "Shape2", "Shape2"'s Drop Event is activated.

Hi,
in 2018.2.515.45 version of telerik RadGridView I did:
var col = new GridViewDataColumn() { DataMemberBinding = new Binding(item.Name), Header = header };col.CellStyle = new Style();col.CellStyle.Setters.Add(new Setter(GridViewCell.FontWeightProperty, FontWeights.Bold));MyRadGridView.Columns.Add(col);
to set the font of a certain column to bold. Now, after update to 2020.1.115.45 version this is not working any more. The content of this column is invisible.
I tried this:
col.CellStyle = new Style() { TargetType = typeof(GridViewCell) };but no changes.
How can I add a setter to the style in new version?
BR Gert
Hi,
is it possible to enter 030120 but have the Preview ToolTip in format dd.MM.yyyy and also wenn leaving the control (d1.jpg, d2.jpg, d3.jpg, d4.jpg)?
BR Gert
Dear Telerik support team,
I would to customize the style of TileViewItem in order make the content when maximizing overlap the other control (it doesn't take spaces of other controls in my screen when maximizing).
Would you please help to style it?
Below is my current xaml:
01.<telerik:RadTileView x:Name="TitleView"02. RowHeight="{Binding HeightConcept, UpdateSourceTrigger=PropertyChanged}" ColumnWidth="{Binding WidthConcept, UpdateSourceTrigger=PropertyChanged}"03. Width="{Binding MaximizedWidthConcept, UpdateSourceTrigger=PropertyChanged}"04. MaxHeight="{Binding MaximizedHeightConcept, UpdateSourceTrigger=PropertyChanged}" MinimizedRowHeight="Auto"05. MinHeight="0"06. ColumnsCount="1" RowsCount="1"07. MaximizeMode="ZeroOrOne" ScrollViewer.CanContentScroll="False"08. DragMode="{Binding ElementName=dragMode, Path=SelectedItem}" IsItemsSizeInPercentages="True"09. PreservePositionWhenMaximized="True"10. telerik:TileViewPanel.IsColumnsShrinkEnabled="True"11. telerik:TileViewPanel.IsRowsShrinkEnabled="False" telerik:TileViewPanel.IsSizeBoundToPosition="False"12. HeaderStyle="{StaticResource TileItemHeaderStyle}"13. ItemTemplate="{StaticResource HeaderCustomTemplate}" 14. ItemsSource="{Binding Items}"15. TileStateChanged ="TitleView_TileStateChanged"16. Background="Transparent"17. >18. <telerik:RadFluidContentControl x:Name="FluidControl" ContentChangeMode="Manual" State="Large"19. TransitionDuration="0:0:.1" Height="Auto" Background="Transparent">20. <telerik:RadFluidContentControl.Content>21. <Grid></Grid>22. </telerik:RadFluidContentControl.Content>23. <telerik:RadFluidContentControl.LargeContent>24. <telerik:RadMultiColumnComboBox x:Name="MultiColumCombo1" Width="{Binding SearchBoxWidth, UpdateSourceTrigger=PropertyChanged}"25. MinWidth="0" MinHeight="0" VerticalAlignment="Top" HorizontalAlignment="Left"26. DisplayMemberPath="{Binding GridItem.ThirdFullName}"27. DropDownMinWidth="{Binding DropDownMinWidthConcept, UpdateSourceTrigger=PropertyChanged}"28. DropDownMaxWidth="{Binding DropDownMaxWidthConcept, UpdateSourceTrigger=PropertyChanged}"29. SearchMode="MatchAnyTerm"30. SelectionMode="Multiple" AutoCompleteMode="Search"31. SelectionBoxesVisibility="Visible"32. SelectionBoxStyle="{StaticResource SelectionBoxCustomStyle}"33. NullText="..."34. DropDownPlacement="Bottom" FooterVisibility="Visible"35. FooterContentTemplate="{StaticResource FooterCheckBoxTemplate}"36. CloseDropDownAfterSelectionInput="True"37. GotFocus="MultiColumCombo1_GotFocus">38. <telerik:RadMultiColumnComboBox.ItemsSourceProvider>39. <telerik:GridViewItemsSourceProvider x:Name="ItemsSourceProviderGrid1"40. ItemsSource="{Binding DataSource, Mode=TwoWay}"41. ShowColumnHeaders="True"42. RowIndicatorVisibility="Collapsed"43. AutoGenerateColumns="False"44. >45. </telerik:GridViewItemsSourceProvider>46. </telerik:RadMultiColumnComboBox.ItemsSourceProvider>47. </telerik:RadMultiColumnComboBox>48. </telerik:RadFluidContentControl.LargeContent>49. </telerik:RadFluidContentControl>50. </telerik:RadTileView>Hello,
When setting the Layer property by code, it works as expected. But, when a layer is selected by the user, the Layer property doesn't change!

Hello,
Typing characters with switching IME input mode will crash your RichTextBox sample application.
In 2017.2.614 the process is killed and in 2020.1.115 an exception is thrown.
Could you tell us a solution to this problem?
Also, do you plan to fix your components for this problem?
Reproduction steps:
1. Start editing rich text
2. Switch IME input mode to Hiragana
3. Switch IME input mode to AlphanumericHalfWidth
4. Enter "," (comma) by key operation
5. Switch IME input mode to Hiragana
6. Enter any characters by key operation
⇒ The application crashes
Exception information:
Value cannot be null.
Parameter name: insertIMETextCommandContext
Best regards,

Hello Admin,
I am now using RadCartesianChart's LineSeries to show tooltip. But when loading massive amount of data about 18866 record, UI becomes very slow to show tooltips and finally becomes freeze. Could you please help me how to solve this issue? Thanks.
