Mvc Jquery Checking Size On File Upload?

May 28, 2010

Is there any way to check the size of the file when it is about to be uploaded with jquery ?

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[code]....

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[Code]....

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[Code]....

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[Code]....

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I need upload multiple images and check before image size, I don't wanna use JQuery but if is necessary i can use it, some of you have or know one example.

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I am trying to increase the size of file upload for my ASP.NET app.. (Windows 2008 Enterprise + IIS 7)

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Web Forms :: Validate File Size After Upload Using FileUpload Control?

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i use these code to set limit size for image that users want to upload

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[Code]....

here i define  if (fup1.PostedFile.ContentLength < 102400)  this size for image but when i upload image that has more than this 100KB it show error ===File size of 756 KB is exceeding the uploading limit  but it upload file   i don't want users can upload file morethan 100KB but here show error but upload image why?

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Web Forms :: FileUpload Validate File Size Before Upload Starts Not Working

Jul 5, 2010

I do not want to change the default settings for file upload, 4Mb is more than enough for the project I'm working on. After quite a bit of searching I found two approaches that were purported to work but neither one is preventing the "Maximum request length exceeded" error. The first approach[see ref. #1 below] performs validation with a custom validator and in code behind on the page that contains the FileUpload control. It doesn't work. The second approach [see ref #2 below] performs validation in the Application_BeginRequest event in Global.asax. The author stated that validation must be handled by this event. Quoting: "The way to get past is to use your Application_BeginRequest event to handle the problem.. This event takes place for each request to your application BEFORE the data has been completely uploaded. Here you can check for the content length of the request and then redirect to the some error page or the same page with some value in session or query string so that the page can show appropriate message to the user." Here is my code from Golbal.asax based on the above. As noted, this approach doesn't work either.

protected void Application_BeginRequest(object sender, EventArgs e)
{
const int maxFileSize = 4 * 1000000; // Slightly less than 4Mb
if (Request.ContentLength > maxFileSize)
{
Response.Redirect("~/FileUploadError.aspx");
}
}

One comment by a reader of the Global.asax approach was that the value returned by Request.Content.Length would include everything on the page, i.e. viewstate, image and text content, etc. I suppose one work-around would be to set the limit higher in web.config but validate for max. file size in code behind, but that seems kind of silly because I'm manipulating the uploaded files (images) to reduce the size anyway; storage space isn't the issue, performance is. Has anyone managed to solve this poblem?

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How to upload images with some conditions

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I'm using jQuery Multiple File Upload Plugin to upload several pictures. But form posts only 1, top, item. Fiddler (POST): POST /Images/UploadImages HTTP/1.1

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