网格中的Stackpanel高度百分比

Question

I'm dynamically filling two stackpanels with content at runtime and I want to set the height of these two stackpanels via a percentage. Here's what I've tried:

<Grid>
  <Grid.RowDefinitions>
    <RowDefinition Height="3*" />
    <RowDefinition Height="2*" />
  </Grid.RowDefinitions>
  <ScrollViewer HorizontalAlignment="Stretch"
                Grid.Row="0">
    <StackPanel Name="gridEvents"
                Orientation="Vertical"
                HorizontalAlignment="Stretch">
      <Label Content="Foo" />
    </StackPanel>
  </ScrollViewer>
  <ScrollViewer HorizontalAlignment="Stretch"
                Grid.Row="1">
    <StackPanel Name="gridNewEvent"
                Orientation="Vertical"
                HorizontalAlignment="Stretch">
      <Label Content="Bar" />
    </StackPanel>
  </ScrollViewer>
</Grid>

If I change the RowDefinition height to a static value, it works. but not when I try a percentage. Any ideas?

Answer 1

Have you tried setting the height value of your grid? Otherwise it will expand to fill all available space and your rows will fill a percentage of the resulting grid. Also, it looks more like you're setting the value of your scrollviewers. Did you mean to say you were setting the height for those?