急 ！c#项目的主界面做个更换背景的功能？？

[Prosperou]

麻烦各位说清楚点呢@

[cstester]

更换什么背景...
说清楚一点...

[justin麒麟]

换图片被，背景是一张图片，然后点击按钮换成另一个图片

[suihuan111]

用GDI画
//声明
private Image image = Image.FromFile(@"E:\标准.BMP"); //载入图片
private RectangleF RtF;
private void DrawImage() //画图函数
{
try
{
Graphics g = this.CreateGraphics();
g.DrawImage(image, RtF);
g.Dispose();
}
catch
{
}
}
private void Form1_Paint(object sender, PaintEventArgs e)
{
DrawImage();
}
private void button1_Click(object sender, EventArgs e)
{
image = Image.FromFile(@"E:\标准1.BMP"); //载入另一张图片
try
{
RtF = new RectangleF(0, 0, this.Width, this.Height);
}
}

[wanabe]

换图片背景撒