如果没有记录显示在datagridview中，则messagebox没有找到成员

Question

我正在使用datagridview来显示员工的详细信息，当没有找到记录时，会有一个消息框，这里没有找到记录，这是我的代码。

     Dim search As String = String.Empty
    search &= "select * from record "
    search &= "where identification=@identification;"

    Using conn As New SqlConnection("server=KENJOY_FMCD;database=humanresource;user=ayala747;password=4525422;")
        Using cmd As New SqlCommand()
            With cmd
                .Connection = conn
                .CommandType = CommandType.Text
                .CommandText = search
                .Parameters.AddWithValue("@identification", vsearch.Text)
            End With
            Try
                conn.Open()
                cmd.ExecuteNonQuery()
                Dim da As New SqlDataAdapter(cmd)
                Dim ds As New DataSet
                da.Fill(ds)

                If ds.Tables.Count >= 0 Then
                    DataGridView1.DataSource = ds.Tables(0)
                End If
                If (ds Is Nothing) Then
                    MsgBox("No record found!")
                End If
                conn.Close()
            Catch ex As Exception
                MsgBox(ex.Message)
            End Try
        End Using
    End Using
End Sub
End Class