You can simply use the Adobe Flash or Silverlight plugin. Of course there are some additional options to choose from if your browser does not support the HTML5 File API and you want to avoid writing a custom JavaScript code. Other options: using Silverlight, Flash or IFrame plugins By default it restricts the content length to 30,000,000 bytes.įor example, the web.config configuration allowing uploads of files up to 100MB and upload periods of up to 1 hour should look like the following: maxAllowedContentLength (IIS 7) - specifies the maximum length of content in a request supported by IIS.If the request takes longer to be executed, an exception will be thrown. ExecutionTimeout : Specifies the maximum number of seconds for which a request is allowed to be executed before being automatically shut down by ASP.NET – the default time is 110 seconds.Anything bigger than that will result in the default for the framework "Page not found" error. maxRequestLength : Specifies the limit for the input stream buffering threshold in KB and allows you to control the allowed total size of the upload.To enable large file uploads you need to change the value of the following attributes on the system.web/httpRuntime configuration element:
Uploading large files in ASP.NET – the solution:Īll it takes to overcome the framework limitation is to do several modifications to the project’s web.config file.
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In this blog post I am going to show you how to overcome this limitation, as well as how to validate the file size and type on the client before submitting it to the server. I bet that most of you have faced this common problem: “How to upload large size files (above 4MB) in ASP.NET?” As you know, the default maximum file size allowed in the framework is 4MB and this is to prevent service attacks like submitting large files, which can overwhelm the server resources.
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