Is there a RowSpan="All" in WPF?

Question

I create a GridSplitter across the 3 rows that I have in my grid like this:

<GridSplitter Grid.Row="0" Grid.Column="1" Background="Yellow"               HorizontalAlignment="Stretch" VerticalAlignment="Stretch"               Width="Auto" Height="Auto" ResizeDirection="Columns"               Grid.RowSpan="3" ... 

However, it's conceivable that I might add another row to my grid at a later stage, and I don't really want to go back and update all of my rowspans.

My first guess was Grid.RowSpan="*", but that doesn't compile.

Answer 1

A simple solution:

<!-- RowSpan == Int32.MaxValue --> <GridSplitter Grid.Row="0"               Grid.Column="1"               Grid.RowSpan="2147483647" /> 

Answer 2

You can bind to the RowDefinitions.Count but would need to update the binding when adding rows manually.

Edit: Only semi-manually in fact
Xaml:

<StackPanel Orientation="Vertical">     <Grid Name="GridThing">         <Grid.ColumnDefinitions>             <ColumnDefinition/>                <ColumnDefinition/>                      </Grid.ColumnDefinitions>             <Grid.RowDefinitions>                 <RowDefinition />             <RowDefinition />                </Grid.RowDefinitions>             <Grid.Children>                 <Button Content="TopRight" Grid.Row="0" Grid.Column="1"/>                 <Button Content="LowerRight" Grid.Row="1" Grid.Column="1"/>             <Button Content="Span Rows" Name="BSpan" Grid.RowSpan="{Binding RelativeSource={RelativeSource AncestorType=Grid}, Path=RowDefinitions.Count, Mode=OneWay}"/>         </Grid.Children>         </Grid>     <Button Click="Button_Click" Content="Add Row" /> </StackPanel> 

Code:

    private void Button_Click(object sender, RoutedEventArgs e)     {         GridThing.RowDefinitions.Add(new RowDefinition() { Height = new GridLength(20) });         foreach (FrameworkElement child in GridThing.Children)         {             BindingExpression exp = child.GetBindingExpression(Grid.RowSpanProperty);             if (exp != null)             {                 exp.UpdateTarget();             }         }     }