ViewBox Support

[Tim]

Hello.

I need a TileView in a ViewBox. How to work around the error "InvalidOperationException: UIEllement.Arrange(finalRect) cannot be called with Infinite or NaN values in finallRect." Do I have to set the width and height? Are there other workarounds?

Thanks a lot in advance,
Tim.

[Tim]

Forgot my RadTileView definition:

<telerik:RadTileView x:Name="myTileView"
                     ColumnsCount="4"
                     ColumnWidth="Auto"
                     ItemsSource="{Binding Items}"
                     RowHeight="Auto"
                     MinimizedColumnWidth="250"
                     MinimizedRowHeight="150"
                     PreservePositionWhenMaximized="True"
                     IsItemsSizeInPercentages="True"
                     telerik:TileViewPanel.IsSizeBoundToPosition="True"
                     telerik:TileViewPanel.IsRowsShrinkEnabled="True"
                     telerik:TileViewPanel.IsColumnsShrinkEnabled="True">
    <telerik:RadTileView.ItemTemplate>
        <DataTemplate telerik:ContainerBinding.ContainerBindings="{StaticResource bindings}">
            <TextBlock Text="{Binding Header}" />
        </DataTemplate>
    </telerik:RadTileView.ItemTemplate>
    <telerik:RadTileView.ContentTemplate>
        <DataTemplate>
            <TextBlock Text="{Binding Content}" />
        </DataTemplate>
    </telerik:RadTileView.ContentTemplate>
</telerik:RadTileView>

[Zarko]

Hello Tim,
Thank you for the feedback. The problem in your case is that you're setting the IsItemsSizeInPercentages property to True which means that the width/height of an item will be (lets say) 20% from the available width/height but when the RadTileView is inside a ViewBox the available width/height is infinity and 20% from infinity is infinity.
You can do two things in this case:
- You can set the IsItemsSizeInPercentages to false and use static sizes.
- You can keep the IsItemsSizeInPercentages set to true but you'll have to set Height/MaxHeight and Width/MaxWidth to the RadTileView.
I've attached a sample project using the second approach so could you please examine it and if you have further questions feel free to ask.

Regards,
Zarko
the Telerik team

[Tim]

Hi Zarko,

thanks a lot for your fast reply, your explanations and your sample project!  I am now setting the Width and Height...
All the best,
Tim.