Delete a picture file after Bitmap.FromFile call.

Delete a picture file after Bitmap.FromFile call.

• simon_

  You should use either Bitmap.Dispose or create a clone of the bitmap and dispose the source. It should work...
  

• kkmick

  Actually, if performance matters it would be better to read the file "by hand" and use Bitmap.LockBits to fill in the data - this way you avoid having 2 copies of the image.
  

• Greg_Dodd

  Hmm,

  sound like overkill to create a Bitmap twice, only to get rid of the file lock.

  Is this a bug in the Bitmap.FromFile() function

  
  

• NigelP

  Update:

  Now I tried the 2 suggested solutions. Disposing the bitmap frees also the lock of the picture file and I can delete the file.

  But Clone() also clones the file lock :-(((

  Here is the test code:

  Image bm = Bitmap.FromFile(fn);

  Image bm2 = (Image)bm.Clone();

  bm.Dispose();

  File.Delete(fn);

  The original Bitmap is disposed only the close ist alive, but still get the Exception ...

  Any other solutions

  BerW

  
  

• LamptonWorm

  So create a new bitmap object and draw it using Graphics.FromImage, Graphics.DrawImageUnscaled
  
• Delete a picture file after Bitmap.FromFile call.