private void FormSheetFieldGrid_Load(object sender, EventArgs e)
{
listGridTypes = SheetUtil.GetGridsAvailable(SheetDefCur.SheetType);
if (listGridTypes.Count == 0)
{
DialogResult = DialogResult.Cancel; //should never happen, but in case we launched the grid window without any valid grid types for this sheet type.
}
fillComboGridTypes();
}