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After using FileUpload.SaveAs(), how to release the saved file from IIS (worker process)

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I have an ASP.NET website application that allows a user to upload an image file to a folder; the uploaded image is then used by the app. I am using the ASP.NET "FileUpload" control, and its "SaveAs" method to do this.

If I do this once, everything works fine... however, if I try to upload another file with the same name, I get an error that it cannot do so because the previously uploaded file is being used by the IIS "Worker Process".

I tried closing the client browser, and starting a fresh session... but I still can't overwrite the existing file. Even if I log into the server and try to delete the image file I can't until I go to the Task Manager and stop the "Worker Process (w3wp.exe)". Once that process is stopped, I can either re-upload the image file or delete it directly.

How can I do the "FileUpload.SaveAs()" in such a way that the file is released from the IIS Worker Process after it is saved?

Here is the code where I save the image file:

If FileUpload1.PostedFile IsNot Nothing AndAlso 
 FileUpload1.PostedFile.FileName <> "" Then

 FileUpload1.SaveAs(Server.MapPath(imgPath))
 design1.ImageUrl = imgPath
 Page.ClientScript.RegisterClientScriptBlock(GetType(Page),
 "Alert", "alert('Image saved!')", True)

So, everything works the first time, but how to "unlock" the image file after a successful "SaveAs()". Only workaround I can think of now is saving every image file under a unique name (e.g. timeStamp'd).

asp.net file-upload save-as

share|improve this question

asked Mar 26 at 16:29

user1691949user1691949

2133 bronze badges

add a comment | 

0

I have an ASP.NET website application that allows a user to upload an image file to a folder; the uploaded image is then used by the app. I am using the ASP.NET "FileUpload" control, and its "SaveAs" method to do this.

If I do this once, everything works fine... however, if I try to upload another file with the same name, I get an error that it cannot do so because the previously uploaded file is being used by the IIS "Worker Process".

I tried closing the client browser, and starting a fresh session... but I still can't overwrite the existing file. Even if I log into the server and try to delete the image file I can't until I go to the Task Manager and stop the "Worker Process (w3wp.exe)". Once that process is stopped, I can either re-upload the image file or delete it directly.

How can I do the "FileUpload.SaveAs()" in such a way that the file is released from the IIS Worker Process after it is saved?

Here is the code where I save the image file:

If FileUpload1.PostedFile IsNot Nothing AndAlso 
 FileUpload1.PostedFile.FileName <> "" Then

 FileUpload1.SaveAs(Server.MapPath(imgPath))
 design1.ImageUrl = imgPath
 Page.ClientScript.RegisterClientScriptBlock(GetType(Page),
 "Alert", "alert('Image saved!')", True)

So, everything works the first time, but how to "unlock" the image file after a successful "SaveAs()". Only workaround I can think of now is saving every image file under a unique name (e.g. timeStamp'd).

asp.net file-upload save-as

share|improve this question

asked Mar 26 at 16:29

user1691949user1691949

2133 bronze badges

add a comment | 

I have an ASP.NET website application that allows a user to upload an image file to a folder; the uploaded image is then used by the app. I am using the ASP.NET "FileUpload" control, and its "SaveAs" method to do this.

If I do this once, everything works fine... however, if I try to upload another file with the same name, I get an error that it cannot do so because the previously uploaded file is being used by the IIS "Worker Process".

I tried closing the client browser, and starting a fresh session... but I still can't overwrite the existing file. Even if I log into the server and try to delete the image file I can't until I go to the Task Manager and stop the "Worker Process (w3wp.exe)". Once that process is stopped, I can either re-upload the image file or delete it directly.

How can I do the "FileUpload.SaveAs()" in such a way that the file is released from the IIS Worker Process after it is saved?

Here is the code where I save the image file:

If FileUpload1.PostedFile IsNot Nothing AndAlso 
 FileUpload1.PostedFile.FileName <> "" Then

 FileUpload1.SaveAs(Server.MapPath(imgPath))
 design1.ImageUrl = imgPath
 Page.ClientScript.RegisterClientScriptBlock(GetType(Page),
 "Alert", "alert('Image saved!')", True)

So, everything works the first time, but how to "unlock" the image file after a successful "SaveAs()". Only workaround I can think of now is saving every image file under a unique name (e.g. timeStamp'd).

asp.net file-upload save-as

share|improve this question

asked Mar 26 at 16:29

user1691949user1691949

2133 bronze badges

If FileUpload1.PostedFile IsNot Nothing AndAlso 
 FileUpload1.PostedFile.FileName <> "" Then

 FileUpload1.SaveAs(Server.MapPath(imgPath))
 design1.ImageUrl = imgPath
 Page.ClientScript.RegisterClientScriptBlock(GetType(Page),
 "Alert", "alert('Image saved!')", True)

share|improve this question

asked Mar 26 at 16:29

user1691949user1691949

2133 bronze badges

share|improve this question

asked Mar 26 at 16:29

user1691949user1691949

2133 bronze badges

asked Mar 26 at 16:29

user1691949user1691949

2133 bronze badges

asked Mar 26 at 16:29

user1691949user1691949

2133 bronze badges