Send image to Server from Xamarin Forms

Question

Dear Techie,

I'm new to Xamarin forums, How to send an image to server in Xamarin forums . I tried out but i could not able to solve this .

Thanks,
Vasanth

Answer 1

Hello,​

Welcome to our Microsoft Q&A platform!

If you want to upload a file from Xamarin Forms app to ASP.NET web application.Here is a simple code.

   private MediaFile _mediaFile;  
     
       private async void UploadFile_Clicked(object sender, EventArgs e)  
       {  
           var content = new MultipartFormDataContent();  
     
           content.Add(new StreamContent(_mediaFile.GetStream()),  
               "\"file\"",  
               $"\"{_mediaFile.Path}\"");  
     
           var httpClient = new HttpClient();  
     
           var uploadServiceBaseAddress = "http://uploadtoserver.azurewebsites.net/api/Files/Upload";  
           //"http://localhost:12214/api/Files/Upload";  
     
           var httpResponseMessage = await httpClient.PostAsync(uploadServiceBaseAddress, content);  
     
           RemotePathLabel.Text = await httpResponseMessage.Content.ReadAsStringAsync();  
       }  

And shows to get and save that file with an ASP.NET application:

   public class UploadsController : ApiController  
   {  
       [Route("api/Files/Upload")]  
       public async Task<string> Post()  
       {  
           try  
           {  
               var httpRequest = HttpContext.Current.Request;  
     
               if (httpRequest.Files.Count > 0)  
               {  
                   foreach (string file in httpRequest.Files)  
                   {  
                       var postedFile = httpRequest.Files[file];  
     
                       var fileName = postedFile.FileName.Split('\\').LastOrDefault().Split('/').LastOrDefault();  
     
                       var filePath = HttpContext.Current.Server.MapPath("~/Uploads/" + fileName);  
     
                       postedFile.SaveAs(filePath);  
     
                       return "/Uploads/" + fileName;  
                   }  
               }  
           }  
           catch (Exception exception)  
           {  
               return exception.Message;  
           }  
     
           return "no files";  
       }  
   }  

Best Regards,

Leon Lu

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