Last Updated: 22 May 2020 07:48 by ADMIN
For example: When I enable DataGrid LoadOnDemand it's loading infinitely for a static list of 3 records.
Last Updated: 21 May 2020 05:38 by ADMIN
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.
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.

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
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.
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

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.
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).

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

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

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.
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
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

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)

    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;
        var item = Items[39];

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

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

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.

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. 

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
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

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:

        <Label Text="{Binding Group.Key}"/>

Workaround for column:

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

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.
Last Updated: 19 Aug 2019 09:58 by ADMIN
When display is on high resolution screen (MS surface book screen 3000*2000 with 200% scale) the DataGrid is not resized correctly.  See attachments. 
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