How can I get my ScrollViewer to scroll the view area?

StackOverflow https://stackoverflow.com/questions/1840868

  •  12-09-2019
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Question

I have a Grid inside a ScrollViewer inside a Border inside a StackPanel inside a Window.

The ScrollViewer puts a scrollbar on the right, but it is not scrollable.

How can I get the ScrollViewer to make its contents scrollable?

alt text http://www.deviantsart.com/upload/1bl34e1.png

<Window x:Class="TestScroll234343.Window1"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="Window1" Height="150" Width="300">
    <StackPanel>
    <!--<StackPanel Height="150"> doesn't work either-->
        <Border>
            <ScrollViewer>            
                <Grid>
                    <Grid.ColumnDefinitions>
                        <ColumnDefinition Width="Auto"/>
                    </Grid.ColumnDefinitions>
                    <Grid.RowDefinitions>
                        <RowDefinition Height="Auto"/>
                        <RowDefinition Height="Auto"/>
                        <RowDefinition Height="Auto"/>
                        <RowDefinition Height="Auto"/>
                        <RowDefinition Height="Auto"/>
                        <RowDefinition Height="Auto"/>
                        <RowDefinition Height="Auto"/>
                        <RowDefinition Height="Auto"/>
                        <RowDefinition Height="Auto"/>
                        <RowDefinition Height="Auto"/>
                    </Grid.RowDefinitions>

                    <TextBlock Grid.Row="0" Grid.Column="0" Text="Row0"/>
                    <TextBlock Grid.Row="1" Grid.Column="0" Text="Row1"/>
                    <TextBlock Grid.Row="2" Grid.Column="0" Text="Row2"/>
                    <TextBlock Grid.Row="3" Grid.Column="0" Text="Row3"/>
                    <TextBlock Grid.Row="4" Grid.Column="0" Text="Row4"/>
                    <TextBlock Grid.Row="5" Grid.Column="0" Text="Row5"/>
                    <TextBlock Grid.Row="6" Grid.Column="0" Text="Row6"/>
                    <TextBlock Grid.Row="7" Grid.Column="0" Text="Row7"/>
                    <TextBlock Grid.Row="8" Grid.Column="0" Text="Row8"/>
                    <TextBlock Grid.Row="9" Grid.Column="0" Text="Row9"/>
                </Grid>
            </ScrollViewer>
        </Border>

    </StackPanel>
</Window>
Was it helpful?

Solution

You should set the height of the ScrollViewer.

If you don't, the Border ask the ScrollViewer what height do it want and the ScrollViewer asks the Border what height should it be.

Other options:

  • Change the StackPanel for a DockPanel (it does not grow more than the Window)
  • Set the height of the StackPanel and bind to it in the ScrollViewer

Code: 

 <StackPanel Height="140">
    <Border>
        <ScrollViewer Height="{Binding RelativeSource={RelativeSource FindAncestor, 
                    AncestorType={x:Type StackPanel}}, Path=Height}">
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