如何将现有的位图绘制到Web窗体. [英] How to Draw an Existing Bitmap to a Web form.

问题描述

byte[] im = (byte[])dt.Rows[0]["Photo"];
Bitmap Image = new Bitmap(new MemoryStream(im));

我可以使用
以字节为单位绘制它

I can draw it in bytes using

Response.ContentType = path;
Response.BinaryWrite(im);

但是我想对Bitmap进行同样的操作.

But i want to do the same with Bitmap .

推荐答案

如果您想做我想做的事，请尝试一下:

If you want to do what I think, give this a try:

Response.Clear();
Response.ContentType = "image/bmp";
byte[] im = (byte[])dt.Rows[0]["Photo"];
bm Image = new Bitmap(new MemoryStream(im));
bm.Save(Response.OutputStream, System.Drawing.Imaging.ImageFormat.Bmp)

清理内存时要小心.

Be careful about cleaning up your memory.

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