[英]unable to delete image after opening it in vb.net app
I have this code: 我有这个代码:
Dim xx as image
xx = image.fromfile(Fileloc)
picturebox.image = xx
And i can't delete the file even though I've loaded it into a picture box. 即使我已将其加载到图片框中,我也无法删除该文件。 If I add this line: 如果我添加这一行:
xx.dispose
the picture box becomes a big red X. 图片框变成了一个大红色的X.
I only want to delete the images when my application is closing (they are temp files). 我只想在应用程序关闭时删除图像(它们是临时文件)。 So shall I just dispose them before I delete them? 所以,在删除它们之前,我应该将它们丢弃吗?
Don't use Image.FromFile
, it keeps the file open. 不要使用Image.FromFile
,它会保持文件打开。
The file remains locked until the Image is disposed. 文件保持锁定状态,直到图像被丢弃。
Do that instead : 这样做:
Dim xx as Image
Using str As Stream = File.OpenRead(Fileloc)
xx = Image.FromStream(str)
End Using
picturebox.Image = xx
The file is closed after the image is loaded, so you can delete the file if you need to 加载图像后文件将关闭,因此您可以根据需要删除该文件
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