Wpf: Grid: How can i share column/row height width?

Question

I have a grid with 3 columns and 5 rows:

<Grid>
    <Grid.ColumnDefinitions>
        <ColumnDefinition Width="Auto"/>
        <ColumnDefinition Width="Auto"/>
        <ColumnDefinition Width="Auto"/>
    </Grid.ColumnDefinitions>

    <Grid.RowDefinitions>
        <RowDefinition/>
        <RowDefinition/>
        <RowDefinition/>
        <RowDefinition/>
        <RowDefinition/>
    </Grid.RowDefinitions>

    <Label Grid.Row="0" Grid.Column="0">Gas Volume Fraction</Label>
    <TextBox Grid.Row="0" Grid.Column="1" Text="{Binding Path=GasVolumeFraction}" MinWidth="40"></TextBox>
    <Label Grid.Row="0" Grid.Column="2">-</Label>

    <Label Grid.Row="1" Grid.Column="0">Density</Label>
    <TextBox Grid.Row="1" Grid.Column="1" Text="{Binding Path=Density}" MinWidth="40"></TextBox>
    <Label Grid.Row="1" Grid.Column="2">kg/m3</Label>

    <Label Grid.Row="2" Grid.Column="0" Content="Curve speed" Style="{StaticResource curveSpeed}" ></Label>
    <TextBox Grid.Row="2" Grid.Column="1" Text="{Binding Path=Density}" Style="{StaticResource curveSpeed}" MinWidth="40"></TextBox>
    <Label Grid.Row="2" Grid.Column="2" Style="{StaticResource curveSpeed}">rpm</Label>

    <WrapPanel Grid.Row="3" Grid.Column="0" Grid.ColumnSpan="3">
        <RadioButton>Delta pressure</RadioButton>
        <RadioButton>Head</RadioButton>
    </WrapPanel>

    <WrapPanel Grid.Row="4" Grid.Column="0" Grid.ColumnSpan="3">
        <RadioButton>Efficiency</RadioButton>
        <RadioButton>Power</RadioButton>
        <RadioButton>Torque</RadioButton>
    </WrapPanel>

</Grid>

The textboxes and radiobuttons have different space requirements, which makes the rows render with different heights based on their content. How can I make the rows evenly sized, but not larger than whats necessary? In other words: I want the same height as setting Height="Auto" for a row which contains a textbox (the biggest element in my grid) and then use that height for all the rows.

Answer 1

I know this is an old question, but I'll answer for anyone who stumbles across this while googling.

There's actually a very simple solution to this problem, using the SharedSizeScope mentioned by Quartermeister.

<Grid IsSharedSizeScope="True">
    <Grid.RowDefinitions>
        <RowDefinition Height="Auto" SharedSizeGroup="groupName" />
        <RowDefinition Height="Auto" SharedSizeGroup="groupName" />
        <RowDefinition Height="Auto" SharedSizeGroup="groupName" />
    </Grid.RowDefinitions>

    ...
</Grid>

Just make sure you set Grid.IsSharedSizeScope to true, and make sure that each RowDefinition has the same SharedSizeGroup, and the rows should be auto and equally sized. This works for columns as well.