OK, now it works fine.

thanks for your quickly support

Greetings from germany

thomas

Hello,

Since you use ItemsSource I can suggest you change the Button’s Click event handler like this:

(((sender as Button).TemplatedParent as ContentPresenter).TemplatedParent as XamTile).IsMaximized = true;

Please let me know if this helps you or you need further assistance on this matter.

Hello Stefan,

thanks for you support, i think  i have as beginner some easy wpf problems :(
But in my application i use datatemplates and then the parent of the Button is Null.

Hmmmm, can you help a beginner....

Here a little example where the parent is null, i hope you understand.

<Window x:Class="WpfApplication1.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="MainWindow" Height="350" Width="525" xmlns:ig="http://schemas.infragistics.com/xaml">

    <Window.Resources>
        <DataTemplate x:Key="LargeTileView">
            <Button  Name="myTestButton" Content="{Binding Source}" Click="Button_Click"/>
        </DataTemplate>
    </Window.Resources>

    <Grid>
        <ig:XamTileManager
                Name="xamTileManager1"
                ItemTemplate="{StaticResource LargeTileView}"
            ItemsSource="{x:Static Fonts.SystemFontFamilies}">
        </ig:XamTileManager>
    </Grid>
</Window>

---- code behind

        private void Button_Click(object sender, RoutedEventArgs e)
        {
            ((sender as Button).Parent as XamTile).IsMaximized = true;
        }