Add the following else if condition to this method: //1 else if result is ORKFileResult { let fileResult = result as! ORKFileResult //2 retDict[“contentType”] = fileResult. A slightly more sophisticated example is the FileResult class. This class supplies a public property, the ContentType property that contains the. For example, to return a pdf file from the server the Content-Type should FileResult: FilePathResult, FileContentResult and FileStreamResult.

Author: Shakarisar Mugar
Country: Denmark
Language: English (Spanish)
Genre: Software
Published (Last): 14 September 2010
Pages: 293
PDF File Size: 2.63 Mb
ePub File Size: 8.55 Mb
ISBN: 416-8-55730-908-7
Downloads: 8195
Price: Free* [*Free Regsitration Required]
Uploader: Akijar

File action-results class diagram. Step 11 The file creates a filepathresult object using file name and content type.

Get a File Content-Type / MIME-type from file extension in ASP.NET C#

So why another article? This site uses Akismet to reduce spam. In this article we learnt many things about uploading and returning files in an MVC application. For example, in the case of image we need the file should be one of the supported image types like jpg, jpeg, png by the server and we may also need validations to check the file size, file name etc. November 14, November 14, Uploading multiple files 5.


Step 9 Create a link to call the downloadfile method of the home controller. Web namespace — System. Aggiungi e-mail alla newsletter.

The files in the server can be easily sent as response to the clients through its rich support of action results. Well, in this article I gathered the important concepts that are scattered in different posts, threads in a single place.

However, there is a major caveat: The model binding feature relies on two types of components binders and value providers. So uploading a single file and reading it from the server is quite easy, all we need is to set the HttpPostedFileBase type as a parameter in the corresponding action method.

We can use our FileStringResult as shown in the below action.

The reason is pretty much obvious: POSTing a file to the server is fjleresult simple. Leave a Reply Cancel reply Your email address will not be published. Visual Studio New Features. Step 4 Now we need to create a view.

For some content types the browser doesn’t open the save dialog and display the content directly inside its window. You can find the file in the download folder.

The below code snippet shows how we can return a file just plain from an action fuleresult using action results. If you’re working with ASP. The main benefit of this technique is the simplicity: AsyncUtil — C Helper class to run async methods as sync and vice-versa A useful helper class written in C Sharp to help developers working with async and sync methods in ASP. To understand how it generates the header see the source code.


TryGetValue extension, out mime? Note that the validation attributes applied over the File property are custom ones and not exists in the data annotations assembly.

Uploading and returning files in MVC

The important thing is the name of the file input controls should match the rules of model binding. We can even pass a file download name to the FilePathResult. GetAssembly typeof HttpApplication. How to Deploy a ASP.

Step 5 Name the view and select “Empty without model ” as the template. The size of each chunk is 4KB and this can’t be changed through code or config.