RadTabControl in RowDetailsTemplate causes scrollbar jumps in RadGridView

[Jakub]

Hi,

I have RadGridView with defined RowDetailsTemplate as below:

<telerik:RadGridView.RowDetailsTemplate>
                <DataTemplate>
                    <telerik:RadTabControl>
                        <telerik:RadTabItem Header="Tab1">
                            <Grid>
                                <Grid.RowDefinitions>
                                    <RowDefinition Height="100" />
                                    <RowDefinition Height="50" />
                                </Grid.RowDefinitions>

                                <TextBlock Grid.Row="0" Text="TestVar1" />
                                <TextBlock Grid.Row="1" Text="TestVar2" />
                            </Grid>
                        </telerik:RadTabItem>
                    </telerik:RadTabControl>

                </DataTemplate>
            </telerik:RadGridView.RowDetailsTemplate>

When I expand row details, scroll down until details are not visibile and then go back to see again row details - a scrollbar jumps in strange way just before details shows. You can easy reproduce this behavior because there is no binding or anything. I found that when i comments out RadTabControl from details template as below:

<telerik:RadGridView.RowDetailsTemplate>
                <DataTemplate>
                    <!--<telerik:RadTabControl>
                        <telerik:RadTabItem Header="Tab1">-->
                            <Grid>
                                <Grid.RowDefinitions>
                                    <RowDefinition Height="100" />
                                    <RowDefinition Height="50" />
                                </Grid.RowDefinitions>

                                <TextBlock Grid.Row="0" Text="TestVar1" />
                                <TextBlock Grid.Row="1" Text="TestVar2" />
                            </Grid>
                        <!--</telerik:RadTabItem>
                    </telerik:RadTabControl>-->

                </DataTemplate>
            </telerik:RadGridView.RowDetailsTemplate>

there is no problem with jumping scroll. Can you help me guys?

Thanks

[Ivan Ivanov]

Hi Jakub,

Can you please confirm whether you refer to the befavior when the scrollbar gets bigger after scrolling the RowDetails out of the viewport and then it returns to its initial size when details are brought back. Actually, this is the expected behavior, as the row with the open details gets reused by the UI virtualziation, with smaller size, which results in smaller scroll extent.. This should be reproducible regardless of the presence of tab control. 

Regards,
Ivan Ivanov
Telerik

[Jakub]

Hi Ivan,

I set property Height to fixed value (for example 200) in RadTabControl and problem dissapears.