General error resolution in GDI + when generating thumbnail and watermark pictures. Net-Practical tips for

Copy Code code as follows:

System.Drawing.Image oldimage = null;
Oldimage = System.Drawing.Image.FromFile (IMAGEURL);

When you use this method to read a picture. Cause the picture file to deadlock cannot free the resource, and a general error occurs when the resource is overridden.

Workaround to change the code to the following code

Copy Code code as follows:

Bitmap oimage = new Bitmap (IMAGEURL);//Read picture stream from picture file
Bitmap oldimage = new Bitmap (oimage);//Copy the picture stream to the new picture stream
Oimage.dispose ()//releases the original picture stream and unlocks the picture file.

Very simple practical bar, have the same problem of small partners can refer to the following