Unplanned
Last Updated: 14 Feb 2025 12:28 by Teddy
Created by: Teddy
Comments: 0
Category: DataGrid
Type: Bug Report
1

For example we have set RowHeight to 26 with GridLineThickness = 1, GridLinesVisibility = Horizontal, and RowBackgroundStyle and AlternateRowBackgroundStyle with BorderThickness = 0.

The first row is 26px, the middle rows are 25px and the last row is 24px. So it seems the grid lines are included in the calculation of the RowHeight. 

Unplanned
Last Updated: 28 Mar 2025 08:12 by Hanoch

When using ImageButton inside a CellTemplate, the image does not display initially. When you resize the window image is displayed. 

 

Workaround:

Use Image instead of ImageButton

 

Unplanned
Last Updated: 12 May 2025 08:48 by ADMIN

Delegate aggregate descriptor does not update value in the UI when adding/removing item.

The behavior also happens with the property aggregate descriptor.

Unplanned
Last Updated: 27 Jun 2025 12:25 by Teddy

A NullReferenceException is thrown during the measure phase of a DataGridTextColumn when a CellRenderer is applied:

Object reference not set to an instance of an object.
   at Telerik.Maui.Controls.DataGrid.DataGridColumn.MeasureDrawingPaintable(LambdaPaintable lambdaPaintable, Object measureContext)
   at Telerik.Maui.Controls.SkiaSharp.SkiaLambdaPainter.Measure(MeasureablePaintable paintable, PurePainterContext context, Double widthConstraint, Double heightConstraint)
   at Telerik.Maui.Controls.DataGrid.MasterArranger.MeasureNodeContainer(Object container, Double widthConstraint)
   at Telerik.Maui.Controls.DataGrid.MasterArranger.MeasureNodeContainer(Object container, Double widthConstraint)
   at Telerik.Maui.Controls.DataGrid.MasterArranger.MeasureGridCellModel(GridCellModel model)
   at Telerik.Maui.Controls.DataGrid.CellModelGenerator.GetSize(GridCellModel decorator)
   at Telerik.Maui.Controls.DataGrid.CellsController`1.GenerateCellsForRow(IItemInfoNode rowModel, Int32 rowSlot)
   at Telerik.Maui.Controls.DataGrid.NodePool`2.GenerateModelsForInfos(IList`1 itemInfos, ModelGenerationContext modelGenerationContext, MeasureContext measureContext)
   at Telerik.Maui.Controls.DataGrid.NodePool`2.MeasureForward(MeasureContext& context)
   at Telerik.Maui.Controls.DataGrid.NodePool`2.MeasureVertically(RadSize availableSize, Double offset, Double verticalBuffer)
   at Telerik.Maui.Controls.DataGrid.NodePool`2.OnMeasure(RadSize availableSize, Double offset, Double verticalBuffer)
   at Telerik.Maui.Controls.DataGrid.GridModel.MeasureCells(RadSize availableSize)
   at Telerik.Maui.Controls.DataGrid.DataGridContentLayout.Measure(Double widthConstraint, Double heightConstraint)
   at Microsoft.Maui.Platform.MauiPanel.MeasureOverride(Size availableSize)
   at ABI.Microsoft.UI.Xaml.IFrameworkElementOverrides.Do_Abi_MeasureOverride_0(IntPtr thisPtr, Size availableSize, Size* result)
Unplanned
Last Updated: 30 Nov 2022 11:14 by Terrell
BackgroundColor property of the CellDecorationStyle of any column overlaps all other colors of the DataGrid.
Unplanned
Last Updated: 18 Apr 2023 09:01 by Clint

When a Picker is used in a CellEditTemplate, and when in edit mode, when I click on the arrow of the Picker - the picker does not open. It only opens of I click the text in the Picker.


        <DataTemplate x:Key="template1">
            <Picker ItemsSource="{Binding Item.Categories}" />
        </DataTemplate>

        <telerik:RadDataGrid x:Name="dataGrid"
                             AutoGenerateColumns="False">
            <telerik:RadDataGrid.Columns>
                <telerik:DataGridTextColumn PropertyName="Name" />
                <telerik:DataGridTextColumn PropertyName="Category" CellEditTemplate="{StaticResource template1}" />
            </telerik:RadDataGrid.Columns>
        </telerik:RadDataGrid>

 

A work-around is to not use a Picker, but use a RadComboBox.

Unplanned
Last Updated: 08 Jun 2023 15:21 by Laurin

TapGestureRecognizer not working correctly when tapping inside the DataGrid control on iOS and MacCatalyst platforms.

Workaround:

You could use CellTap or CellDoubleTap commands of the DataGrid control. Here are the links to our documentation articles: DataGrid Commands and DataGrid CellTap Command.

Unplanned
Last Updated: 30 Oct 2023 13:23 by Tomáš
When having a DataGrid in a ControlTemplate of a ContentView, data is not visualized. 

When setting the content initially, the Grid displays the data
Unplanned
Last Updated: 29 Mar 2024 13:52 by Huynh
If the CellContentTemplate property of a column is used, and inside there is just one label, then the text of the label gets wrapped into two lines instead of being rendered in one line.
Unplanned
Last Updated: 09 Apr 2024 09:35 by Huynh

It seems that the default fonts in the RadDataGrid do not support some languages, for example this text "이름" cannot be displayed in Android and WinUI. Rectangles are rendered instead of the correct symbols.

Note that a maui Label can properly display the text.

Unplanned
Last Updated: 28 May 2024 11:40 by Francisco M.
Created by: Francisco M.
Comments: 0
Category: DataGrid
Type: Bug Report
0
On android and WinUI the DataGrid is enabled works fine, but on iOS while disable, it stills let me select, scroll, sort, edit data, etc.
Unplanned
Last Updated: 02 Aug 2024 07:46 by ADMIN

1. Apply filtering to the DataGrid using the distinct values in the Filtering UI,

2. Clear the filter descriptors from external UI.

3. Open the same Filtering UI

Actual: the distinct values in the Filtering UI are still checked. 

Expected: The distinct values should be cleared.

Unplanned
Last Updated: 17 Sep 2024 07:29 by Francisco M.
When adding filter descriptors to the DataGrid, the grid filters the data and the filter icon color changes, but when you open the Filtering UI on the concrete column, the distinct values are not checked. 
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