public new void Clear()
{
if (this.Count == 0)
{
return;
}
for (int i=0; i<this.Count; i++)
{
this[i].ColumnModel = null;
}
base.Clear();
this.InnerList.Capacity = 0;
this.RecalcWidthCache();
this.OnColumnRemoved(new ColumnModelEventArgs(this.owner, null, -1, -1));
}