File upload with additional parameter

mwechter · March 12, 2021, 11:00pm

Earlier today I did a post regarding File Upload and being able to rename the incoming file.
I did find your example of Upload with a custom parameter.
The example showed the markup, but did not show what the Uploadcontroller looks like when you are passing a parameter.
I tried 2 different prototypes and both fail on execution.

// Single file upload
[HttpPost("upload/single")]
public async Task SingleAsync(IFormFile file)
{
// Single file upload
[HttpPost("upload/single")]
public async Task SingleAsync(IFormFile file,string NewFileName)
{

Can you provide an example of the UploadController for uploading a single file with a 'parameter' ?

Thank you in advance

enchev · March 13, 2021, 4:56am

Hey @mwechter,

You have full access to the source code of both components and examples including the upload controller:
radzen-blazor/UploadController.cs at master · radzenhq/radzen-blazor · GitHub

mcanavar · May 17, 2023, 8:25am

Link results to 404, are things moved elsewhere ?

enchev · May 17, 2023, 9:20am

github.com

radzenhq/radzen-blazor/blob/master/RadzenBlazorDemos.Host/Controllers/UploadController.cs

using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Hosting;
using System;
using System.IO;

namespace RadzenBlazorDemos
{
    [DisableRequestSizeLimit]
    public partial class UploadController : Controller
    {
        private readonly IWebHostEnvironment environment;

        public UploadController(IWebHostEnvironment environment)
        {
            this.environment = environment;
        }

        [HttpPost("upload/single")]
        public IActionResult Single(IFormFile file)

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mcanavar · May 19, 2023, 7:06am

Hi @enchev ,

I'm using the Radzen IDE (Blazor Server) and can't get the upload controller to accept a parameter .
Without the parameter it works, when I change the controller to accept a parameter the file is empty .
What should be put in the URL and ParameterName when the controller route is to "upload/single/{id}"

Parameter datatype is int, are string parameters also allowed ?

Thanx!
Regards,

enchev · May 19, 2023, 12:15pm

If using our sample upload controller the url should be set to upload/single and parameter name to file.

mcanavar · May 19, 2023, 1:03pm

Ok , I want to pass the ID as a parameter ?? Not file .

enchev · May 19, 2023, 1:11pm

I misunderstood your question. Do you need to upload single file or multiple files with additional parameter? If using our sample upload controller you don't have to specify ParameterName since both single and multiple files upload roots will use the default names - file and files.

mcanavar · May 19, 2023, 1:34pm

I Want to upload a single file and include an additional parameter:

in the sample for the components the url looks like Url=@($"upload/single/{id}")

How to to do this in the IDE and pass the value of the parameter to the controller.

enchev · May 19, 2023, 1:34pm

mcanavar · May 19, 2023, 1:57pm

So, the syntax for Url is :

${$"upload/single/{id}"}

In Load I set the value of id ( type int ).

Uploading a file the parameters in the controller has the value 0 . My value is not passed to the controller.
Also when you have defined an alternative text to "ChooseText" the designer does not adapts to this and displays the text "Choose" on the upload button.

File is uploaded but the parameter is not .. somehow this does not work for me?

mcanavar · May 19, 2023, 2:01pm

@enchev ,

I had made and typo : This works now with the given syntax for url and leaving the ParameterName blank.

Thank you!