We’ve basically described how ASP.NET MVC organizes file upload. Specifying realistic limits, you can improve the performance of your server or reduce the risk of DoS attacks. Note: Avoid specifying "unlimited" (very large) values there. executionTimeout – the allowed execution time for the request before being automatically shut down by ASP.NET (the default value is 110 seconds).Īll these attributes should be specified in the section.requestLengthDiskThreshold – the limit of data buffered in the server memory in kilobytes (the default value is 80 KB).maxRequestLength – the request size limit in kilobytes (the default value is 4096 KB).You can configure file upload settings by specifying appropriate attributes in the web.config (or nfig if you want to make server-wide changes). Let’s see what attributes are used to limit the file upload: ASP.NET MVC sends an answer to the client through Controller.Response.The action method handles the request (for example, saves files on a hard disk, or updates a database, etc.) through the Controller.Request property, which gets the HttpPostedFilesBase object for the current request.ASP.NET MVC defines the controller and appropriate action method that will handle the request.ASP.NET caches all data in server memory or to disk depending on the uploaded file size.When the upload is started, the uploader packs the files into a POST request and sends this request to the server.A user visits a web page with an uploader (represented by View) and chooses files to be uploaded.Let’s examine the file upload process step by step:
File Upload Basicsĭuring the file upload process, only two parts of the MVC model interact with each other – a view and a controller. Here we'll explore which upload approach is better to use when, but before that let's take a look at ASP.NET MVC file upload in general. Thus, you need to find the upload tool that is not only fast and reliable, but also suits your requirements.
There are a variety of upload components in ASP.NET MVC that serve to resolve one or another upload tasks, for example you may need to upload single or multiple files, work with files of small or very large size, transfer entire folders or files only, just upload images or preprsdfsdf s sd focess them beforehand. It’s widely used in social nets, forums, online auctions, etc.
Uploading files from a client computer to the remote server is quite a common task for many websites and applications.
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