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

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>

Eduardo Molteni · Accepted Answer · 2009-12-03 16:19:12Z

7

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}">

edited Dec 3, 2009 at 16:19

answered Dec 3, 2009 at 16:04

Eduardo Molteni

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2 Comments

Edward Tanguay Over a year ago

It works if I set the height of the ScrollViewer or the Border, but not the StackPanel or the Window. Is there anyway to tell the ScrollViewer to become the height of the control it is in?

HoKy22 Over a year ago

+1, but I also noticed one problem. In my case, I surround ScrollView with ListBox, now the mouse scroll can only scroll along the scroll bar not inside the ListBox. Guess ListBox doesn't relate to the ScrollView. How to allow it scroll on the content as well? (In my original design, I didn't specify the ScrollViewer)

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