求救

[skydaxia]

public Bitmap( Stream stream）
为什么我用时候回出错啊
byte[] imagedata=(byte[])dr["imagedata"];
MemoryStream s = new MemoryStream(@imagedata);
//sm.Write(imagedata, 0, imagedata.Length);
Bitmap img = new Bitmap(s);//这句参数出错
//Image img=Image.FromStream(s);
pictureBox1.Image = img;