Download file in MVC

Copy Code. Contact Me! User Sep How do you know so much about swallows? Well, you have to know these things when you're a king, you know. VICK Sep Tridip Bhattacharjee Sep John Brett Sep Go to top. Layout: fixed fluid. Software Developer. First Prev Next. Member NotSupportedException: ' The given path' s format is not supported.

User However on a positive note, I've got a new idea about my next article called "How to write text to the console" with the following code: C Copy Code Console. WriteLine " Your text" ; How do you know so much about swallows?

Can you explain how your mentioned link is related to what I have posted. The reason behind posting this short tip is to help those beginners, who are not much familiar with MSDN and needs a quick solution. We should be building great things that don't exist- Lary Page. Your "tip" is just standard MVC functionality. A much better solution is the one below that doesn't have to load the file into memory first.

As this answer is almost five years old, yeah. If you're doing this to serve very large files, don't. If possible, use a separate static file server so you don't tie up your application threads, or one of many new techniques for serving files added to MVC since ReadAllBytes was added years later in an edit.

Why is this my second most upvoted answer? Oh well. Getting this error: non-invocable member "File" cannot be used like a method. Show 10 more comments. For example using a virtual path to the file you could do the following. Octet, Path. GetFileName virtualFilePath ;. Jonathan Jonathan 1, 1 1 gold badge 8 8 silver badges 12 12 bronze badges.

FileName , fileFromDB. FileName ;. That get Mime mapping is nice, but isn't it a heave process to figure out what is the type of file in run time? MohammedNoureldin it is not "figuring" it, there is a simple mapping table based on file extensions or something like that.

The server does it for all static files, it is not slow. I used it once and here's my code. MapPath this. VirtualPath ; context. Bernard Vander Beken 4, 5 5 gold badges 47 47 silver badges 73 73 bronze badges. Manaf Abu. Rous Manaf Abu. Rous 2, 20 20 silver badges 24 24 bronze badges. Right, yes, I saw that article too, but it seems to do sort of the same thing as the article I used see the reference to my previous post , and he says himself at the top of the page that the workaround shouldn't be needed anymore because: "NEW UPDATE: There is no longer need for this custom ActionResult because ASP.

ManafAbuRous, if you read the code closely you will see it actually converts the virtual path to physical path Server. VirtualPath so consuming this directly without change is a tad naive. You should produce an alternate that accepts PhysicalPath given that's what is eventually required and is what you are storing. This would be much safer as you have made an assumption that the physical path and relative path would be the same excluding the root.

This is not accessible as a relative path. GetVirtualPath is great Thanks to Ian Henry! FileData; return File fileBytes, System. Octet, myFile. DmitryBoyko DmitryBoyko What about client side, calling this method?

Lets say if you want to show save as dialog? You can write the following code in View. If you forget setting the proper encoding type then only the filename is submitted not the file.

Following are the code snippets of controller action where you can extract file from the Request. Once you read the POSTed file from the request its really easy to save it to the server.

Upload action Upload action with Parameter Instead of manually reading the file from the Request, by taking the advantage of model binding the file can be made directly available as a parameter in the action as shown in the below listing.

Point to remember: The important thing to note down is the file parameter name should be same as the name of the file input control in the above case it is photo. What is HttpPostedFileBase? NET pipeline. When you perform unit testing, you typically use a derived class to implement members that have customized behavior that fulfills the scenario you are testing. File binding to the Model? The model binding feature relies on two types of components binders and value providers. The value providers are the components that gets the value needed from the particular source query-strings, form etc.