Question

Ok I have a contentpresenter inside a grid cell:

        <Grid>
            <Grid.RowDefinitions>
                <RowDefinition Height="Auto"></RowDefinition>
                <RowDefinition></RowDefinition>
            </Grid.RowDefinitions>

            <Grid.ColumnDefinitions>
                <ColumnDefinition></ColumnDefinition>
            </Grid.ColumnDefinitions>

            <WrapPanel Grid.Row="0" Grid.Column="0">
                <RadioButton GroupName="a" IsChecked="{Binding Path=SpecifyRatedValues, Mode=TwoWay}">Specify</RadioButton>
                <RadioButton GroupName="b" IsChecked="{Binding Path=SpecifyRatedValues, Converter={StaticResource invertBoolean}}">Auto generate</RadioButton>
            </WrapPanel>

            <Border BorderBrush="Black" BorderThickness="3" Grid.Row="1" Grid.Column="0">
                <ContentPresenter Content="{Binding Path=RatedValues}"></ContentPresenter>
            </Border>                    
        </Grid>

The contentpresenter finds which UI element to use by the datatemplate defined under resources:

    <DataTemplate DataType="{x:Type ViewModels:RatedValuesViewModel}">
        <Views:RatedValuesView />
    </DataTemplate>

Now, everything works as expected, except for one thing: the View which is placed inside the contentpresenter at runtime does not expand to fill the entire cell. It leaves a big margin on the left and right side.

How can I make the view inside the contentpresenter fill the entire available area?

Answer 1

Chaiguy got it! The View had an explict Width and Height which constrained the view when placed in the cell. Thanks 🙂