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.

Approved
Last Updated: 24 Jan 2020 08:56 by ADMIN
Created by: Chris
Comments: 0
Category: DataGrid
Type: Feature Request
0
Add the ability to set an editor when using a template column.
Approved
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.
Completed
Last Updated: 15 Jan 2020 12:12 by ADMIN
Release R1 2020
While changing the orientation on mobile device to portrait or landscape, the columns' size is not calculated properly and the columns overlap on one another.
In Development
Last Updated: 08 Jan 2020 15:25 by ADMIN
 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.
Under Review
Last Updated: 20 Dec 2019 11:32 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

Approved
Last Updated: 19 Dec 2019 08:36 by ADMIN
Created by: OLIFEL
Comments: 1
Category: DataGrid
Type: Bug Report
2

You can reproduce this by changing input language to any region that uses a comma decimal separator (e.g. Duetsch). The comma is ignored, ultimately corrupting the data

Approved
Last Updated: 06 Dec 2019 15:50 by ADMIN
an issue when changing the orientation of the phone to landscape the items of the grid are rendered, then when go back to portrait the items that aren't rendered in the screen disappear.
Approved
Last Updated: 29 Nov 2019 14:19 by ADMIN
When starting a cell edit, it is desired to have all the text selected, so the user can easily replace the current text without having to delete it. 
Completed
Last Updated: 19 Nov 2019 12:06 by ADMIN
Release 2019.3.1119 (R3 2019 minor release)
When Filtering is applied to the RadDataGrid control and PropertyChanged is invoked by the visualized business object, the DataGrid rows are reordered inconsistently on tap
Completed
Last Updated: 19 Nov 2019 12:05 by ADMIN
Release 2019.3.1119 (R3 2019 minor release)
Created by: Safan
Comments: 0
Category: DataGrid
Type: Bug Report
1

Refer to the attached reproducible.

1. Run app and apply a filter: "Contains 0"

2. Notice #40 is in the correct location, between #30 and #50

3. Press the button on the bottom of the page to go BlankPage and then navigate back.

4. Observe #40 is now at the end of the rows even though the filter is clearly applied.

Look in MainPageViewModel.cs lines 42 to 49. When the navigation back occurs, this code is executed.  I can reproduce the problem with both Replace and Add+Remove operations.

public override void OnNavigatedTo(INavigationParameters parameters)
{
    base.OnNavigatedTo(parameters);

    if (!parameters.ContainsKey("from"))
    {
        var items = new ObservableCollection<MyModel>();
        for (var i = 1; i <= 100; i++)
            items.Add(new MyModel { Number = i.ToString() });
        Items = items;
    }
    else
    {
        var item = Items[39];

        // Bug Test #1 - using ObservableCollection Reset
        Items[39] = item;

        // Bug Test #2 - using ObservableCollection Remove & Add
        //Items.RemoveAt(39);
        //Items.Insert(39, item);
    }
}

Approved
Last Updated: 07 Nov 2019 08:58 by ADMIN

If you define a PropertyGroupDescriptor in XAML or in page constructor and the PropertyName is set to a nested property, the grouping is not applied.

Grouping by a nested property works correctly when called from the Filtering UI or on a button click action.

Approved
Last Updated: 25 Oct 2019 11:08 by ADMIN
Created by: Mani
Comments: 1
Category: DataGrid
Type: Feature Request
0

I have designed  datagrid like weekly signin details
But i required datagrid with sub header like , 
Please provide better solution to design for sub header with main header

 

Approved
Last Updated: 22 Oct 2019 12:03 by ADMIN
Created by: Stefan
Comments: 0
Category: DataGrid
Type: Feature Request
2
Add the ability to specify a Template that should be shown when the DataGrid is empty.
Approved
Last Updated: 15 Oct 2019 09:34 by ADMIN

Column names in column selector are not visible in Android the first time the column selector is shown. This happens only in the case UserFilterMode is disabled. 

Completed
Last Updated: 04 Oct 2019 14:44 by ADMIN
Release 2019.3.1004 (R3 2019 minor release)
QSF DataGrid CRUD example
When editing the value inside the OrderDate column, the edited value is not presented in the OrderDate column. It keeps the old value
Approved
Last Updated: 24 Sep 2019 14:10 by ADMIN
Created by: Giovanni Rojas
Comments: 1
Category: DataGrid
Type: Feature Request
1

when using automatic column generation you don't have easy access to the column being created so that you can apply customizations (Header, style, etc).

Please implement the same event that UI for WPF has, see it here: https://docs.telerik.com/devtools/wpf/controls/radgridview/events/column-resize-event#autogeneratingcolumn

Approved
Last Updated: 19 Sep 2019 07:46 by ADMIN

I have tried to change the cell background color programatically .

This is Perfectly Working on Android Devices.

But,this not working on iOS devices.

Please provide better solution to solve this issue.

below i have attached the xmal and .cs file

Approved
Last Updated: 11 Sep 2019 11:09 by ADMIN
When the DataGridPickerColumn ItemsSource property is bound to a collection not part of the business object used for the DataGrid, and ItemDisplayBindingPath is used, null reference exception is raised when selecting items in the picker.
Won't Fix
Last Updated: 29 Aug 2019 06:27 by ADMIN
Workaround for GroupHeaderTemplate:

<grid:RadDataGrid.GroupHeaderTemplate>
    <DataTemplate>
        <Label Text="{Binding Group.Key}"/>
    </DataTemplate>
</grid:RadDataGrid.GroupHeaderTemplate>


Workaround for column:

<telerikDataGrid:DataGridTemplateColumn HeaderText="Name" >
    <telerikDataGrid:DataGridTemplateColumn.CellContentTemplate>
        <DataTemplate>
            <Label Text="{Binding Name}"/>
        </DataTemplate>
    </telerikDataGrid:DataGridTemplateColumn.CellContentTemplate>
</telerikDataGrid:DataGridTemplateColumn>

 
UPDATE:
We have decided not to change the code of the RadDataGrid component in this regard. The root reason for this is the fact that the Skia APIs used to draw the text does not support automatic character fallback. To overcome this issue, people from Skia team have two suggestions. We have tested them out and none of them is applicable for the case of the DataGrid.
First approach slows down the performance of the component to a point where the DataGrid becomes unusable.
Second approach does not fix the problem in all cases.
Having this in mind the best approach for our customers in such cases is to use a TemplateCell with a Label inside it only for the column(s) where they expect symbols to occur. The Xamarin.Forms.Label supports automatic character fallback hence it should properly handle all cases.
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