How to upload file using c#

Linq; using System. Web; using System. Mvc; namespace FileUpload. GetFileName file. Combine Server. Browse the Application. Click upload. I have debugged the code to verify that the file gets uploaded successfully. Summary Hence, we have just learned how to upload the file in ASP. Next Recommended Reading. Net Core 6. Create A. Understanding Thread Starvation in. NET Core Applications. I had tested this method on winforms application :. How are we doing? Please help us improve Stack Overflow.

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Active 2 months ago. Viewed k times. I try upload a file to an FTP-server with C. The file is uploaded but with zero bytes. IsNullOrEmpty txtnaam. Show "Gelieve uw naam in te geven! Martin Prikryl k 47 47 gold badges silver badges bronze badges.

Add a comment. Active Oldest Votes. Saeb Amini Saeb Amini PSA: webrequest is no longer recommended, this are now the official alternatives — Pacharrin.

Easiest way The most trivial way to upload a file to an FTP server using. Read buffer, 0, buffer. Write buffer, 0, read ; Console.

Martin Prikryl Martin Prikryl k 47 47 gold badges silver badges bronze badges. Create ftpUrl ; request. UploadFile; request. Open, FileAccess. Create new Uri string. Length]; fs. Length ; fs. GetRequestStream ; requestStream. Write buffer, 0, buffer. Length ; requestStream. The solution contains two projects; one is an ASP. NET Web Service project Uploader and the other is a Win Forms test application TestUploader used to demonstrate uploading files through the web method provided in the web service project.

The web service project contains only a single web service FileUploader which in turn contains only a single Web Method UploadFile. The Win Forms application contains only a single form which contains the controls one textbox and two buttons used in conjunction with an OpenFileDialog control and code necessary to select and upload files through the web service.

The Uploader web service project is an ASP. NET web service project containing a single web service called, " FileUploader "; this web service exposes a single web method called, " UploadFile ". The remainder of the code supplied in this class is used to define the web method used to upload the file; the code is annotated.

The essential process is that, files converted to byte arrays are passed along with the full name of the file not the path including the extension as arguments to the UploadFile web method. The byte array is passed to a memory stream, and a file stream is opened pointing to a newly created file named the name of the original file within the target folder used to store the files.

Once the file stream has been created, the memory stream is written into the file stream and then the memory stream and file stream are disposed of. The web method is setup to return a string; if all goes well, the string returned will read, "OK", if not, the error message encountered will be returned to the caller. The test application contains a single Windows Form class; this form contains a text box used to display the name of the file selected for upload, a browse button used to launch an open file dialog box which is used to navigate to and select a file for upload, and an upload button which is used to pass the file to web service so that the selected file may be stored on the server.