private void Block()
{
RepositoryItemLookUpEdit cboBlk = cboBlock.Edit as RepositoryItemLookUpEdit;
DataTable dt = new DataTable();
dt = UnitDirBL.GetBlock(m_iCCId);
cboBlk.DataSource = dt;
cboBlk.DisplayMember = "BlockName";
cboBlk.ValueMember = "BlockId";
cboBlk.PopulateColumns();
cboBlk.Columns["BlockId"].Visible = false;
cboBlk.ShowHeader = false;
cboBlk.ShowFooter = false;
}