private void xuat_excel()
{
XlsExportOptions opt = new XlsExportOptions();
opt.SheetName = "NHAP_HOP_DONG";
opt.TextExportMode = TextExportMode.Value;
string path = WinFormControls.saveFileDialog("HOP_DONG");
if(!String.IsNullOrEmpty(path))
{
m_grv_hop_dong.ExportToXls(path, opt);
var excel = new Microsoft.Office.Interop.Excel.Application();
excel.Visible = true;
Microsoft.Office.Interop.Excel.Workbooks books = excel.Workbooks;
Microsoft.Office.Interop.Excel.Workbook openexcel = books.Open(path);
}
}