public virtual void Clear()
{
#if DEBUG
int layoutSuspendCount = Owner.LayoutSuspendCount;
#endif
Owner.SuspendLayout();
// clear all preferred size caches in the tree -
// inherited fonts could go away, etc.
CommonProperties.xClearAllPreferredSizeCaches(Owner);
try
{
while (Count != 0)
{
RemoveAt(Count - 1);
}
}
finally
{
Owner.ResumeLayout();
#if DEBUG
Debug.Assert(Owner.LayoutSuspendCount == layoutSuspendCount, "Suspend/Resume layout mismatch!");
#endif
}
}