/// <summary>
/// Invoked when a ContentPane for a given item is being removed.
/// </summary>
/// <param name="cp">The pane being removed</param>
protected virtual void RemovePane(ContentPane cp)
{
// we need to temporarily change the close action while we close it
DependencyProperty closeProp = ContentPane.CloseActionProperty;
if (cp == null)
{
return;
}
object oldValue = cp.ReadLocalValue(closeProp);
BindingExpressionBase oldExpression = cp.GetBindingExpression(closeProp);
cp.CloseAction = PaneCloseAction.RemovePane;
// restore the original close action
if (oldExpression != null)
{
cp.SetBinding(closeProp, oldExpression.ParentBindingBase);
}
else if (oldValue == DependencyProperty.UnsetValue)
{
cp.ClearValue(closeProp);
}
else
{
cp.SetValue(closeProp, oldValue);
}
cp.PreviewMouseDown -= PaneOnPreviewMouseDown;
}
protected virtual void RemovePane(ContentPane cp)
{
var closeProp = ContentPane.CloseActionProperty;
if (cp == null)
{
return;
}
var oldValue = cp.ReadLocalValue(closeProp);
BindingExpressionBase oldExpression = cp.GetBindingExpression(closeProp);
cp.CloseAction = PaneCloseAction.RemovePane;
if (oldExpression != null)
{
cp.SetBinding(closeProp, oldExpression.ParentBindingBase);
}
else if (oldValue == DependencyProperty.UnsetValue)
{
cp.ClearValue(closeProp);
}
else
{
cp.SetValue(closeProp, oldValue);
}
cp.PreviewMouseDown -= PaneOnPreviewMouseDown;
}
/// <summary>
/// Sets the Content property of a generated ContentPane to null.
/// </summary>
/// <param name="contentPane">The ContentPane</param>
protected void ClearContainerForItem(ContentPane contentPane)
{
if ((bool)contentPane.GetValue(IsGeneratedProperty))
{
contentPane.ClearValue(ContentPane.HeaderProperty); //remove any bindings
contentPane.Content = null;
}
}
/// <summary>
/// Invoked when a ContentPane for a given item is being removed.
/// </summary>
/// <param name="cp">The pane being removed</param>
protected virtual void RemovePane(ContentPane cp)
{
// we need to temporarily change the close action while we close it
DependencyProperty closeProp = ContentPane.CloseActionProperty;
if(cp == null)
{
return;
}
object oldValue = cp.ReadLocalValue(closeProp);
BindingExpressionBase oldExpression = cp.GetBindingExpression(closeProp);
cp.CloseAction = PaneCloseAction.RemovePane;
// restore the original close action
if(oldExpression != null)
{
cp.SetBinding(closeProp, oldExpression.ParentBindingBase);
}
else if(oldValue == DependencyProperty.UnsetValue)
{
cp.ClearValue(closeProp);
}
else
{
cp.SetValue(closeProp, oldValue);
}
}
