Hello.

I have a problem with columns in grid. I would like to have columns with the same width and this width should not depend on the content of the columns.

Here is my code:

    <Grid Margin="5" >
            <Grid.ColumnDefinitions>
                <ColumnDefinition Width="*" />
                <ColumnDefinition Width="*" />
                <ColumnDefinition Width="*" />
                <ColumnDefinition Width="*" />
            </Grid.ColumnDefinitions>

            <telerik:RadTreeView Margin="5,0,5,0" Grid.Column="0" 
                                 ItemsSource="{Binding TreeView0}" />
            <telerik:RadTreeView Margin="5,0,5,0" Grid.Column="1" 
                                 ItemsSource="{Binding TreeView1}" />
            <telerik:RadTreeView Margin="5,0,5,0" Grid.Column="2" 
                                 ItemsSource="{Binding TreeView2}" />
            <telerik:RadTreeView Margin="5,0,5,0" Grid.Column="3" 
                                 ItemsSource="{Binding TreeView3}" />
    </Grid>

When I am expanding tree in RadTreeView the column changes it's width and other columns changes respectively. But I would like to have four columns with width = 1/4 of grid's width. RadTreeView has its own ScrollBar for horizontal scrolling.