vb.net 2003 在智能设备开发中, panel控件中画线出现错误, 急!

[far]

Dim x As Single = 0.0F
Dim y As Single = 0.0F
Dim width As Single = 50.0
Dim height As Single = 50.0
Dim g As Graphics = Panel1.CreateGraphics()
Dim myBrush As New SolidBrush(Color.Gray)
g.BackColor = Color.Blue
g.FillEllipse(myBrush, x, y, width, height)
编译可以通过,但是在wince模拟器里面运行时Dim g As Graphics = Panel1.CreateGraphics()出现异常错误

[仰泳的鱼儿]

I don't know why you want to use this syntax "Panel1.CreateGraphics()"?
I override the "OnPaint" Event,like the following codes:

/// <summary>
/// 绘制过程,覆盖control,但不要在子类中覆盖该事件
/// 而覆盖其Draw事件
/// </summary>
/// <param name="e">绘制事件参数</param>
protected override void OnPaint(PaintEventArgs e)
{
Graphics g = e.Graphics;
g.FillEllipse(....)
}

in here:System.Windows.Forms.Control=control.

[aawolf]

没试过，不敢胡说，回家试试再说。

什么异常？