private void btnConvertExcel_Click(object sender, EventArgs e)
{
Class.ExportToExcel.Export2Excel(dgvPrintStockExcel);
frmCheckStockExcel frm = new frmCheckStockExcel();
frm.Close();
}
private void btnCkStock_Click(object sender, EventArgs e)
{
string MainCateId = cboMainCate.SelectedValue.ToString();
Stock.frmCheckStockExcel frmexcel = new frmCheckStockExcel();
frmexcel.setMainCateId = Convert.ToInt16(MainCateId);
frmexcel.ShowDialog();
}