ExpandDirection Enumeration

 

Specifies the direction in which an Expander control opens.

Namespace:   System.Windows.Controls
Assembly:  PresentationFramework (in PresentationFramework.dll)

public enum ExpandDirection

Member nameDescription
Down

The Expander control opens down.

Left

The Expander control opens left.

Right

The Expander control opens right.

Up

The Expander control opens up.

To specify the direction that an Expander control expands, set the ExpandDirection property to one of the enumeration members.

The following example shows how to set the ExpandDirection property to an ExpandDirection enumeration member.

<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>
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;

    //Expand myExpander so it is easier to see the effect of changing 
    //the ExpandDirection property for My Expander
    myExpander.IsExpanded = true;
}

.NET Framework
Available since 3.0
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