private static void OnIsExpandedChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
Expander ep = (Expander)d;
bool newValue = (bool)e.NewValue;
// Fire accessibility event
ExpanderAutomationPeer peer = UIElementAutomationPeer.FromElement(ep) as ExpanderAutomationPeer;
if (peer != null)
{
peer.RaiseExpandCollapseAutomationEvent(!newValue, newValue);
}
if (newValue)
{
ep.OnExpanded();
}
else
{
ep.OnCollapsed();
}
ep.UpdateVisualState();
}
/// <summary>
/// ExpandDirectionProperty PropertyChangedCallback call back static function.
/// This function validates the new value before calling virtual function OnExpandDirectionChanged.
/// </summary>
/// <param name="d">Expander object whose ExpandDirection property is changed.</param>
/// <param name="e">DependencyPropertyChangedEventArgs which contains the old and new values.</param>
private static void OnExpandDirectionPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
Expander ctrl = (Expander)d;
ExpandDirection oldValue = (ExpandDirection)e.OldValue;
ExpandDirection newValue = (ExpandDirection)e.NewValue;
if (!IsValidExpandDirection(newValue))
{
ctrl.ExpandDirection = oldValue;
string message = string.Format(
CultureInfo.InvariantCulture,
Properties.Resources.Expander_OnExpandDirectionPropertyChanged_InvalidValue,
newValue);
throw new ArgumentException(message, "e");
}
ctrl.UpdateVisualState(true);
}
// Token: 0x06004B06 RID: 19206 RVA: 0x001524E0 File Offset: 0x001506E0
private static void OnIsExpandedChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
Expander expander = (Expander)d;
bool flag = (bool)e.NewValue;
ExpanderAutomationPeer expanderAutomationPeer = UIElementAutomationPeer.FromElement(expander) as ExpanderAutomationPeer;
if (expanderAutomationPeer != null)
{
expanderAutomationPeer.RaiseExpandCollapseAutomationEvent(!flag, flag);
}
if (flag)
{
expander.OnExpanded();
}
else
{
expander.OnCollapsed();
}
expander.UpdateVisualState();
}