Firstly, we consider the view. The view code with razor syntax may look as follows:. After a user submits the form, the View sends posted data to the Action method of the Controller that handles file upload. Otherwise it won't get the uploaded file. The action model looks like this:. The action method receives the uploaded file, tries to save it to the Images folder, and shows a message indicating whether or not the file is saved successfully.
Once a user chooses a file and clicks the Upload Image button, the following form with the message if the uploaded file is saved successfully will be shown:. Keep security in mind! The server may be compromised by a virus or other malicious data uploaded by someone. Thus, you should add some file upload restrictions to the controller.
There are several security concerns, which allow you to consider whether to accept an uploaded file or not. For example, you can verify the checksum of the uploaded file or control file type by checking the extension but this can be easily spoofed. The application we discussed above can be easily transformed to support multiple file upload: just specify as many file inputs in the view as the number of files you want to be uploaded simultaneously.
Note, all inputs should have the same name. Click OK. We will add a folder to store the files in the application.
Here, I have added a folder in the application. Right click on UploadFileActionResult. Go to Add View. Select the empty template. Click add. Write the following code in the View. The code is working as per the expectations, as it hits the success message. We should get this message on the View, as well. Hence, we have just learned how to upload the file in ASP. I hope this post is useful to developers. View All. Nitin Updated date Jun 09, Place the following code inside the class file.
This Empty code First model creates a context file for your database connection. You can now add your Filetables class within the context file shown below. Now, we need to execute all the required Migrations commands within the package manager control.
We need to add a controller. Select empty controller form list and give the suitable name of the controller. Here I give controller name as Filetables. And place the following code inside the controller. Here I am creating two index methods one for uploading content to the database and one for uploading the file. The first index method is used to retrieve the uploaded file list and display it on the index page.
On the same index page, I will create a form to upload files in the database. The Last Index method in the controller is for uploading a file on a server. I want to store all files inside the upload file folder we created before starting the code. And use the TempData to display the message after files are uploaded successfully. If any exception occurs during execution or if the file was not uploaded successfully TempData shows File Uploaded Failed message on view.
In the controller, I am creating one method for file Extension. This method is used to display which type of file we uploaded to the database.
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