<Page x:Class="ExpanderDirectionExample.Page1"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="200"/>
<ColumnDefinition Width="150"/>
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition/>
</Grid.RowDefinitions>
<StackPanel Grid.Column="0" Grid.Row="0">
<Expander Name="myExpander" Background="Tan"
HorizontalAlignment="Left" Header="My Expander"
ExpandDirection="Down" IsExpanded="True" Width="100">
<TextBlock TextWrapping="Wrap">
this is a test
</TextBlock>
</Expander>
</StackPanel>
<StackPanel Grid.Column="1" Grid.Row="0">
<TextBlock Margin="0, 10, 3, 3" FontSize="12" TextWrapping="Wrap">
Click to change the ExpandDirection property on My Expander
</TextBlock>
<StackPanel>
<RadioButton Name="ExpandDown" Margin="0,10,0,10"
IsChecked="True"
Checked="ChangeExpandDirection"
GroupName="ExpandDirectionProperty">
Expand Down
</RadioButton>
<RadioButton Name="ExpandUp" Margin="0,0,0,10"
Checked="ChangeExpandDirection"
GroupName="ExpandDirectionProperty">
Expand Up
</RadioButton>
<RadioButton Name="ExpandLeft" Margin="0,0,0,10"
Checked="ChangeExpandDirection"
GroupName="ExpandDirectionProperty">
Expand Left
</RadioButton>
<RadioButton Name="ExpandRight" Margin="0,0,0,10"
Checked="ChangeExpandDirection"
GroupName="ExpandDirectionProperty">
Expand Right
</RadioButton>
</StackPanel>
</StackPanel>
</Grid>
</Page>
//File:Window.xaml.cs
using System;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Media;
using System.Windows.Navigation;
using System.Windows.Shapes;
namespace ExpanderDirectionExample
{
public partial class Page1 : Page
{
private void ChangeExpandDirection(object sender, RoutedEventArgs e)
{
if ((Boolean)ExpandDown.IsChecked)
myExpander.ExpandDirection = ExpandDirection.Down;
else if ((Boolean)ExpandUp.IsChecked)
myExpander.ExpandDirection = ExpandDirection.Up;
else if ((Boolean)ExpandLeft.IsChecked)
myExpander.ExpandDirection = ExpandDirection.Left;
else if ((Boolean)ExpandRight.IsChecked)
myExpander.ExpandDirection = ExpandDirection.Right;
myExpander.IsExpanded = true;
}
}
}
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