public void GridViewLookupEdit()
{
#region Ghi chú
// Create an in-place LookupEdit control.
//RepositoryItemLookUpEdit repositoryItemGridLookUpEdit1 = new RepositoryItemLookUpEdit();
DataTable dtAbsent = BUS_ChamCong.LoadAbsent();
repositoryItemLookUpEdit1.DataSource = dtAbsent;
repositoryItemLookUpEdit1.ValueMember = "id";
repositoryItemLookUpEdit1.DisplayMember = "description";
repositoryItemLookUpEdit1.NullText = "Chọn lý do vắng";
// Enable the "best-fit" functionality mode in which columns have proportional widths and the popup window is resized to fit all the columns.
repositoryItemLookUpEdit1.BestFitMode = DevExpress.XtraEditors.Controls.BestFitMode.BestFitResizePopup;
// Specify the dropdown height.
repositoryItemLookUpEdit1.DropDownRows = dtAbsent.Rows.Count;
// Enable the automatic completion feature. In this mode, when the dropdown is closed,
// the text in the edit box is automatically completed if it matches a DisplayMember field value of one of dropdown rows.
repositoryItemLookUpEdit1.SearchMode = DevExpress.XtraEditors.Controls.SearchMode.AutoComplete;
// Specify the column against which an incremental search is performed in SearchMode.AutoComplete and SearchMode.OnlyInPopup modes
repositoryItemLookUpEdit1.AutoSearchColumnIndex = 1;
// Optionally hide the Description column in the dropdown.
repositoryItemLookUpEdit1.PopulateColumns();
repositoryItemLookUpEdit1.Columns["id"].Visible = false;
// Assign the in-place LookupEdit control to the grid's CategoryID column.
// Note that the data types of the "ID" and "CategoryID" fields match.
repositoryItemDateEdit1.NullText = string.Empty;
repositoryItemDateEdit2.NullText = string.Empty;
gridView1.Columns["att_reason"].ColumnEdit = repositoryItemLookUpEdit1;
//gridView1.Columns["created"].ColumnEdit = repositoryItemDateEdit1;
//gridView1.Columns["updated"].ColumnEdit = repositoryItemDateEdit2;
gridView1.BestFitColumns();
#endregion
}
