& "'" Dim sql = "select * from invoice_add where invoice_number=N'" & (invoice_number.Text)
        Dim adp As New SqlDataAdapter(sql, sqlconn)
        Dim ds As New DataSet
        adp.Fill(ds)
        Dim dt = ds.Tables(0)
        If dt.Rows.Count > 0 Then

            For a = 0 To dgv.Rows.Count - 1
                adp = New SqlDataAdapter("select * from item where itemcode=N'" & (dgv.Rows(a).Cells(0).Value) & "'", sqlconn)
                ds = New DataSet
                adp.Fill(ds)
                dt = ds.Tables(0)
                Dim dr3 = dt.Rows(0)
                dr3!itemcount = Val(dgv.Rows(a).Cells(14).Value)
                dr3!total_price = dr3!itemcount * dr3!itembuyprice

                'حفظ سجل كمية المادة المباعه
                If dr3!out_count.ToString = "" Then
                    dr3!out_count = 0
                    dr3!out_count = Val(dr3!out_count) + Val(dgv.Rows(a).Cells(16).Value)
                    dr3!Profits = Val(dr3!Profits) + Val(dgv.Rows(a).Cells(8).Value)

                Else

                    dr3!out_count = Val(dr3!out_count) + Val(dgv.Rows(a).Cells(16).Value)
                    dr3!Profits = Val(dr3!Profits) + Val(dgv.Rows(a).Cells(8).Value)

                End If

                dr3!date_sale = invoice_date.Value
                Dim cmd4 As New SqlCommandBuilder(adp)
                adp.Update(dt)
            Next
            adp.Dispose()
            ds.Dispose()
            dt.Dispose()