WinForm PictureBox reading an image file cannot be released

Today to do a photo program, the camera SDK everything is done, just to display the image and save the photo step card for half a day.

The reason is that the preview image uses PictureBox and the image file is loaded in the following way:

  Pictureboxphoto.image = Image.FromFile (filepath);

However, this will cause the image file to remain in the occupied state, once the photo completion needs to overwrite the source map, because the file operation is not released can not be overwritten.

Before looking at various programs, what deep copy is on, and finally found that using FileStream to operate the most effective.

Replace the previous code:

using New FileStream (filepath, FileMode.Open, FileAccess.Read))                     = Image.fromstream (Lstream);