internal void Clear()
{
// clear list and hash table that stores last selected columns
this.lstColumns.Items.Clear();
if (LastSelectedHT != null)
{
LastSelectedHT.Clear();
}
}
internal void UnSelectAll()
{
// unselect all columns in list
for (int i = 0; i < lstColumns.Items.Count; i++)
{
lstColumns.SetSelected(i, false);
}
if (LastSelectedHT != null)
{
LastSelectedHT.Clear();
}
}
