Completed
Last Updated: 22 Oct 2020 15:31 by ADMIN
Release R3 2020 SP1

filtering can no longer be applied as the "Reset" and "Filter" buttons are disappeared.

workaround use Xamarin.Forms v 4.8.0.1269

Unplanned
Last Updated: 16 Oct 2020 15:50 by James
Created by: Shawn
Comments: 3
Category: DataGrid
Type: Feature Request
3
My mobile app requires that my data grid have frozen columns on the left that do NOT scroll horizontally.  This is useful when the first column might be an ID column or a Date column that the user always needs to see when scrolling through the other data columns.
Declined
Last Updated: 01 Oct 2020 12:59 by ADMIN

if the Flow Direction RTL

the sort of columns changing each time item source changed when customize HeaderContentTemplates  as a data template

 

and if HeaderText ysed instead of customizing label as data template the Arabic letters not shown correctly

Unplanned
Last Updated: 30 Sep 2020 13:34 by ADMIN
Created by: Gustavo
Comments: 1
Category: DataGrid
Type: Feature Request
1
 Add the capability to apply separate SortDescriptors per Group
Unplanned
Last Updated: 04 Sep 2020 17:00 by Brad
Created by: Brad
Comments: 2
Category: DataGrid
Type: Bug Report
0

If you use a TrueType font for the DataGrid column's OptionsButtonFontFamily, it is not respected and falls back to a default OS font.

Workaround

The only workaround at this time is to create a custom column HeaderTemplate with a custom options button and hide the default options button.

<dataGrid:RadDataGrid x:Name="dataGrid" ...>
    <dataGrid:RadDataGrid.Columns>
        <dataGrid:DataGridTextColumn x:Name="productNameColumn" PropertyName="ProductName">
            <dataGrid:DataGridTextColumn.HeaderContentTemplate>
                <DataTemplate>
                    <Grid>
                        <Grid.ColumnDefinitions>
                            <ColumnDefinition/>
                            <ColumnDefinition/>
                        </Grid.ColumnDefinitions>

                        <Label Text="Name" TextColor="Black"/>

                        <Label FontFamily="MyCustomFont.ttf#MyCustomFont"
                                    Text="&#xE717;"
                                    TextColor="Orange" HorizontalOptions="End" HorizontalTextAlignment="End" Grid.Column="1">
                            <Label.GestureRecognizers>
                                <TapGestureRecognizer Tapped="TapGestureRecognizer_Tapped"/>
                            </Label.GestureRecognizers>
                        </Label>
                    </Grid>
                </DataTemplate>
            </dataGrid:DataGridTextColumn.HeaderContentTemplate>
            <dataGrid:DataGridTextColumn.HeaderStyle>
                <dataGrid:DataGridColumnHeaderStyle OptionsButtonFontSize="0" FilterIndicatorFontSize="0"/>
            </dataGrid:DataGridTextColumn.HeaderStyle>
        </dataGrid:DataGridTextColumn>
    </dataGrid:RadDataGrid.Columns>
</dataGrid:RadDataGrid>

In the code-behind, we use reflection to access the column's command context and invoke the options menu via DataGrid command service.

public partial class YourPage : ContentPage
{
    private readonly MethodInfo generateOptionsTapContextMethodInfo;

    public YourPage()
    {
        InitializeComponent();

        this.generateOptionsTapContextMethodInfo = this.dataGrid.GetType().GetMethod(
            "GenerateFilteringCommandContext", 
            BindingFlags.NonPublic | BindingFlags.Instance);
    }

    private void TapGestureRecognizer_Tapped(object sender, EventArgs e)
    {
        if (this.generateOptionsTapContextMethodInfo != null)
        {
            // Get a reference to the column, this is needed to invoke a command
            var context = this.generateOptionsTapContextMethodInfo.Invoke(
                this.dataGrid, 
                new object[] { this.productNameColumn });

            // Invoke the command service that opens the options button
            this.dataGrid.CommandService.ExecuteDefaultCommand(
                Telerik.XamarinForms.DataGrid.Commands.DataGridCommandId.OptionsTap, 
                context);
        }
    }
}

 

Unplanned
Last Updated: 27 Aug 2020 11:12 by Mahmoud
The horizontal scrollviewer is not visualized initially when the column header text is longer than the columns' text. Still, tapping on any item makes it possible to scroll.
Unplanned
Last Updated: 27 Aug 2020 11:10 by Mahmoud
For example: When I enable DataGrid LoadOnDemand it's loading infinitely for a static list of 3 records.
Declined
Last Updated: 17 Aug 2020 15:17 by ADMIN
Created by: Oluwagbenga
Comments: 1
Category: DataGrid
Type: Bug Report
0

Hi,

The DataGrid does support or response to Custom Font set Using the ExportFont Attribute. But when a contentTemplate is used and a label control is place in it. The font shows on the label but not on the Header or Content of the Grid.

Unplanned
Last Updated: 31 Jul 2020 08:14 by ADMIN
ADMIN
Created by: Lance | Manager Technical Support
Comments: 4
Category: DataGrid
Type: Feature Request
3
Currently, hiding the 'more' button in the of the DataGrid filter Options panel is not possible.

This is a feature request to add such an option to the DataGrid column styling options (potentially as a property of the HeaderStyle).
Completed
Last Updated: 13 May 2020 14:17 by ADMIN
Release R2 2020
Provide a way to associate a FilterDescriptor with a TemplatedColumn
Unplanned
Last Updated: 12 May 2020 08:15 by ADMIN

Flicker can be observed when datagrid is manipulated/updated, or entering in edit mode. One example is tapping on a column header - when there is a column with a HeadetTemplate, the column header flickers. Other example is to double-tap a cell to go in edit mode. Also the behavior can be reproduced when DataGrid TemplateColumn is used.

Unplanned
Last Updated: 08 May 2020 10:08 by ADMIN
changing the item source of the data grid based on the picker option, but the app crashes at that time when changing data grid cell values
Unplanned
Last Updated: 17 Apr 2020 06:04 by ADMIN
If you open the filtering UI of a TextColumn, start typing into the "Enter filter criteria" field and press "Reset" or "Filter", the filtering UI is closed, still, the soft keyboard is not hidden.
Declined
Last Updated: 07 Apr 2020 09:58 by ADMIN

To reproduce:

Step 1 - File > New > LoadOnDemandCollection Demo

Follow the LoadOnDemandCollection documentation https://docs.telerik.com/devtools/xamarin/controls/datagrid/load_on_demand#loadondemandcollection

Step 2 - Deploy to UWP

=> Observe the DataGrid will be stuck in busy state after the initial set of items load

Completed
Last Updated: 19 Feb 2020 15:44 by ADMIN
Release R1 2020 SP1
 If you open a datagrid's filter pop-up, navigate away from the page, then go back to the page, the filter pop-up will still be open.

If you attempt to close it, by way of the "X", the app will crash. In debug mode, a null reference error will occur. If navigating away from the grid with the filter closed, no crash will happen.
Unplanned
Last Updated: 29 Jan 2020 13:56 by ADMIN
Created by: Chris
Comments: 1
Category: DataGrid
Type: Feature Request
2
Currently, Datagrid Columns do not have a Style property. This makes setting the style for multiple data grid columns cumbersome since the styles must be set on each column. If DataGridColumn could extend NavigableElement or have a bindable style property then the following XAML could be used to set the column styles on an entire table.

<Style TargetType="telerikGrid:DataGridColumn">
        <Setter Property="HeaderStyle">
            <telerikGrid:DataGridColumnHeaderStyle TextFontSize="11" TextFontAttributes="Bold" BorderThickness="1" BorderColor="LightGray"/>
        </Setter>
        <Setter Property="CellContentStyle">
            <telerikGrid:DataGridTextCellStyle FontSize="10"/>
        </Setter>
 </Style>


Unplanned
Last Updated: 28 Jan 2020 11:29 by ADMIN

When you edit a value of a certain item of the DataGrid and keyboard is displayed, while the focus is still in the input and the row is scrolled away, the keyboard will stay open on Android.

In addition, if you return back to the edited cell, the row will display as if it were on focus, the cell shows the editor underline, the keyboard is still open, but there will be no focus.  You will be required to click on the cell to get focus again.

Lastly, only on Android 5.1, if the edited value is a number, when you scroll the cell out of view, the keyboard changes from the numerical to alphanumerical (default).

Declined
Last Updated: 24 Jan 2020 09:10 by ADMIN

The DataGrid has the ability to add custom controls to the cell via Template columns; however, the contents of the cell are always visible and there is no way to distinguish between editing and display modes like you can with the type data columns. Furthermore, it may be desirable to create custom column types as the reusability would be easier than using a template or a template selector.

Currently, the DataGrid columns are public and unsealed; however, much of their internals are marked as internal. For example, overriding the CreateCellArranger method would allow custom editor types when the cell is edited. This would require exposing the CellArranger base classes as well.

Please mark more of the internals as public so that truely custom DataGridColumns can be created.

Unplanned
Last Updated: 24 Jan 2020 08:56 by ADMIN
Created by: Chris
Comments: 0
Category: DataGrid
Type: Feature Request
1
Add the ability to set an editor when using a template column.
Unplanned
Last Updated: 22 Jan 2020 09:36 by ADMIN
It would be nice if we can just bind a .net DataTable or DateView as ItemsSource to the RadDataGrid.
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