I've since updated my implementation to fix this. While the code below is from my most recent incarnation of this problem in an ASP. ContentDispositionHeaderValue class. NOTE: This example code above fails to properly account for international characters in the filename. See RFC for the relevant standardization. I believe recent versions of ASP. So I'm posting what worked for me as an alternative in case anybody else is having trouble.
Darin Dimitrov's answer is correct. Just an addition:. AppendHeader "Content-Disposition", cd. ToString ; may cause the browser to fail rendering the file if your response already contains a "Content-Disposition" header. In that case, you may want to use:. Below code worked for me for getting a pdf file from an API service and response it out to the browser - hope it helps;. Action method needs to return FileResult with either a stream, byte[], or virtual path of the file.
You will also need to know the content-type of the file being downloaded. Sample video link How to download files using asp. If, like me, you've come to this topic via Razor components as you're learning Blazor, then you'll find you need to think a little more outside of the box to solve this problem.
It's a bit of a minefield if also like me Blazor is your first forray into the MVC-type world, as the documentation isn't as helpful for such 'menial' tasks. Next, make sure your application startup Startup. Hopefully this helps anyone who struggled like me! Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow.
Learn more. Asked 10 years, 7 months ago. Active 1 year, 7 months ago. Viewed k times. These are the examples of what I've tried so far. Data, document. ContentType, document. Data , document. Add HeaderNames. ContentDisposition, cd. ToString ; return File document. Nick Albrecht. Nick Albrecht Nick Albrecht 16k 9 9 gold badges 67 67 silver badges 97 97 bronze badges. Add a comment.
Net GridView. Inside the Page Load event handler, the records from the database table are fetched and are used to populate the GridView control. ConnectionStrings[ "constr" ]. Fill dt ;. DataBind ;. ToBase64String byte [] dr[ "Data" ] ;. FindControl "Image1" as Image. If Not Me. IsPostBack Then. ConnectionStrings "constr". Fill dt. End Using. End If. End Sub. DataRow Then. DataItem, DataRowView. CType e. Please Try Again!!! Fill dtData ; con. ExecuteNonQuery ; con. For that right click on Index ActionResult.
Go to Add View. Then Select the empty template. Click add. Now, let's modify the Index. Add the below code to Index.
FileList, canPage: true , rowsPerPage: 15 ; grid. GetHtml tableStyle: "table table-striped table-bordered table-hover" , headerStyle: "webgrid-header" , alternatingRowStyle: "webgrid-alternating-row" , selectedRowStyle: "webgrid-selected-row" , footerStyle: "webgrid-footer" , rowStyle: "webgrid-row-style" , mode: WebGridPagerModes. Columns grid. Switch to FilesController and add the below code.
Read data, 0, data. Length ; if br! It only helps us push the folders that we use frequently to the top of the project tree so that we can easily locate them. The next step is to move the logic for sending an upload request from the upload. And then inject the service to call the new method in upload. Now we can make sure once again that everything works as expected. With this, we are concluding the refactoring part and can safely move on to adding a download component to our client-side project.
While looking at the file. That said, we can extract it in a separate variable and access it through interpolation:. After the successful refactoring of the FileService, we will create a component that consumes the service and downloads our file.
We will name it, respectfully, DownloadComponent, to match the one for upload that we already have. Angular CLI steps in once more with its command for a component generation:. This time we can skip the creation of the folder because the CLI will do that for us. The behavior of the DownloadComponent will follow the general pattern — it will call the FileService, handle the response, and propagate it back to its parent component.
To accomplish that, we have to add logic to the download. With this, we can wrap up the implementation of the download operation. To choose a file to download, we first need to list those files somewhere in the application and trigger the download request with the help of the UI components. As mentioned in the beginning, we will load a list of users from the database and take their corresponding profile pictures. But to have something to show, we first need to create some users.
On the homepage of the application, by entering credentials and uploading a picture, we can successfully create a User. When we add a user, the profile picture will also automatically appear in a folder inside our application.
For the sake of simplicity, we will show them below the user creation form. Each photo in the list will have an associated download button which will trigger the download for that particular file.
For the realization of the idea of iterating through a list of users, we first need to load the users from the database.
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