/// <summary>
/// Remove column from "selected" (and add to "available" list)
/// </summary>
/// <param name="column"></param>
private void RemoveColumn(GuiGridColumn column)
{
AvailableColumns.Add(column);
SelectedColumns.Remove(column);
SelectedAvailableColumn = column;
SelectedSelectedColumn = null;
}
/// <summary>
/// Move column down in order
/// </summary>
/// <param name="column"></param>
private void DownColumn(GuiGridColumn column)
{
int idx = SelectedColumns.IndexOf(column);
SelectedColumns.Move(idx, idx + 1);
}