When. net generates thumbnails and watermark images, a general error occurs in GDI +. netgdi

When. net generates thumbnails and watermark images, a general error occurs in GDI +. netgdi

Copy codeThe Code is as follows:
System. Drawing. Image OldImage = null;
OldImage = System. Drawing. Image. FromFile (ImageUrl );

 
When you use this method to read images. As a result, the resources cannot be released due to a deadlock in the image file, and a general error occurs when the imported resource is overwritten.
 
Solution: change the code to the following code:

Copy codeThe Code is as follows:
Bitmap oImage = new Bitmap (ImageUrl); // read the image stream from the image file
Bitmap OldImage = new Bitmap (oImage); // copy the image stream to the new image stream
OImage. Dispose (); // release the original image stream and unlock the image file.

It is very simple and practical. If you have any questions, refer