private void mapData(int Id)
{
DataTable data = item.GetbyId(Id);
if (data.Rows.Count > 0)
{
txtcode.Text = data.Rows[0]["ItemCode"].ToString();
txtname.Text = data.Rows[0]["ItemName"].ToString();
itemId = Convert.ToInt32(data.Rows[0]["Id"].ToString());
btnadd.Text = "&Update";
}
}