Private m_image As Image = Image.FromFile("g:\picture.bmp")

    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

        Try

            r = New RectangleF(0, 0, Me.ClientSize.Width, Me.ClientSize.Height)

        Catch ex As Exception

            MessageBox.Show(ex.Message)

        End Try

在.net中调用存储过程的另一种方法 按钮列的应用