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What is the best way to upload a file via HTTP POST using a web form?

Basically, something is better than this:

<input type="file" name="myfile" size="50">

Firstly, the button browselooks different in every browser. Unlike a button submitin a form, you have to come up with a hack-y way to style it.

Secondly, the progress indicator does not show how many files are downloaded. Usually you need to implement some kind of client-side way to disable multiple submissions (for example, change the submit button to a disabled button showing "Form submission ... wait.") Or run a giant warning.

Are there any good solutions for this that don't use Flash or Java?

Yaakov : this product looks exactly what I'm looking for, but the cost is $ 1,000 and it is especially for ASP.NET.Are there any open source projects that cover the same or similar functionality?

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File upload boxes are where we are right now if you don’t want to use other technologies like Flash, Java or ActiveX.

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True, the control of downloading files is definitely at a time. Hopefully this will be covered in a future version of asp.net.

Although it costs money, I found Telerik's boot control to have all the functionality you are looking for, including style and progress updates (it also optimizes memory for large downloads).

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