private void button2_Click(object sender, EventArgs e) { try { System.DateTime sdate = default(System.DateTime); sdate = dateTimePicker1.Value; System.DateTime rdate = default(System.DateTime); rdate = dateTimePicker2.Value; var AllRecordQuery = string.Format("Select * from dbo.TAKEORDER inner join dbo.ORDEREDPRODUCTS on dbo.ORDEREDPRODUCTS.ORDERID= dbo.TAKEORDER.ORDERID where ORDERDATE >= ('{0}') and ORDERDATE <=('{1}')", sdate, rdate); dataGridView2.DataSource = EventMangementSystemClass.ReturnTable(AllRecordQuery); dataGridView2.Visible = true; } catch (Exception ex) { MessageBox.Show(ex.Message); } }