In this article we will discuss Using IFormFile in ASP.Net Core MVC.
Here we will explain how IFormFile interface is used for uploading Files in ASP.Net Core MVC.
Microsoft has permanently removed HttpPostedFileBase class from ASP.Net Core and introduced a new interface IFormFile for uploading Files in ASP.Net Core 2.0 and ASP.Net Core 3.0.
Before start this article, please visit our previous article IWebHostEnvironment in ASP.Net Core
Inside the Controller, the multiple files will be saved in a Folder (Directory) inside the www Folder in ASP.Net Core MVC.
Key points on File Upload
Controller
- The Action method Index() by default supports the GET operation and hence another overridden method for POST operation is created which accepts the parameter which is a collection of type IFormFile.
- In application, check wwwroot folder exist or not.
- IWebHostEnvironment interface is used to be injected as dependency in the Controller to read WebRootPath and ContentRootPath
View
The View consists of an HTML Form which has been created using the Razor Tag attributes with the following attributes.
asp-action – Name of the Action. In this case the name is Index.
asp-controller – Name of the Controller. In this case the name is Home.
method – It specifies the Form Method i.e. GET or POST. In this case it will be set to POST.
There is an HTML FileUpload element, and a Submit Button and when it submit the result we bind both the image and file name in a tabul
The HTML FileUpload element has been specified with an additional HTML5 attribute multiple = “multiple” in order to allow user to select multiple files.
Output
When we run the application you can see like below screenshot of file upload and you can see the upload files are in desired folder.
In this tutorial we discussed how we using IFormFile in ASP.Net Core MVC. If have any question related to this topic then give your feedback.
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