when applying Grouping and RowHeight to the DataGrid and expand the row details, the following happens -> The DataGrid in the RowDetails only appears for alternate rows. 

In addition the RowHeight does not apply to the Grouping Row.

Workaround:

Remove the RowHeight from the DataGrid and set the CellContentStyle property to the columns and set the TextMargin to the DataGridTextCellStyle, and ButtonMargin to the DataGridToggleRowDetailsCellStyle. Here is an example when setting them to 0:

            <telerik:DataGridTextCellStyle x:Key="cellStyle"
                                           TextMargin="0"/>


            <telerik:DataGridToggleRowDetailsCellStyle x:Key="toggleStyle"
                                                       ButtonMargin="0"/>


            <telerik:RadDataGrid.Columns>
                <telerik:DataGridToggleRowDetailsColumn CellContentStyle="{StaticResource toggleStyle}"
                                                        IsFrozen="True"/>
                
                <telerik:DataGridTextColumn PropertyName="Country"
                                            CellContentStyle="{StaticResource cellStyle}"
                                            IsFrozen="True" 
                                            CanUserReorder="False"  />
                
                <telerik:DataGridTextColumn PropertyName="Capital" 
                                            CellContentStyle="{StaticResource cellStyle}" />
            </telerik:RadDataGrid.Columns>

Issue description:

When the grid contains, after filtering out ,no rows the "Empty template" is not used/displayed.

Tested on Windows,  with "Telerik_UI_for_dot_NET_Maui_7_1_0_Dev\Examples\ControlsSamples", Example "Empty Template".

Steps to reproduce:

1. Open example  "Empty Template"
2. In "Configuration" set "Items source" to "Non-empty collection"
3. Set filter in "Order Id" to "Is equal to" = 999

Expected behavior:

Display/Use "Empty template" when there are no visible records.

...or to make it more consistent with the current implementation - add new option "ItemsSourceNullOrEmptyOrFilteredOut" to the enum "EmptyContentDisplayMode":

namespace Telerik.Maui.Controls;
//
// Summary:
//     Defines the modes for displaying empty content.
public enum EmptyContentDisplayMode
{
    //
    // Summary:
    //     Displays the empty content view only when the ItemsSource is null.
    ItemsSourceNull,

    //
    // Summary:
    //     Displays the empty content view when ItemsSource is null or when the source is
    //     empty (has zero items).
    ItemsSourceNullOrEmpty,
    
+    //
+    // Summary:
+    //     Displays the empty content view when ItemsSource is null or when the source is
+    //     empty (has zero items) or when all items are filtered out. (either by filter or by search)
+    ItemsSourceNullOrEmptyOrFilteredOut
}    
   

Best regards,

Peter

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.

When we have ListenForNestedPropertyChange property set to true and at some point Clear of the ItemsSource is called the newly added items to the collection stop to listen for PropertyChanged.

In order to make ListenForNestedPropertyChange work again toggle the value of the property. First set it to false and after that back to true.