Uploading a file using ASP.Net

April 10th, 2008 admin Posted in asp.net, c#, development | No Comments »

I know there are loads of articles related to uploading a file usin ASP.Net application. But still there is my method of doing that. Usually while creating a web application all my pages extend one base class but not the Page class. I always create some base class which extends the Page, so I could add some basic functionality and it and use it on any page I want. So the UploadFile procedure would on the methods of my base page class.

using System;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using System.IO;    
public class MyPage : Page
    // strUploadFolder - full path to the folder in which we are gonna store the file (i.e c:\savehere)
    // strFileName - return parameter, that will store upaded file's name
    // function returns true if uploading has been successfull, otherwise we get false
    protected bool UploadFile(HtmlInputFile fileinput, string strUploadFolder, ref string strFileName)
        HttpPostedFile myFile = fileinput.PostedFile;
        int nFileLen = myFile.ContentLength;
        strFileName = string.Empty;
        if (nFileLen > 0)
            byte[] myData = new byte[nFileLen];
            myFile.InputStream.Read(myData, 0, nFileLen);
            strFileName = Path.GetFileName(myFile.FileName);    
                if (!Directory.Exists(strUploadFolder))
                using (FileStream newFile = new FileStream(Path.Combine(strUploadFolder, strFileName),
	       newFile.Write(myData, 0, myData.Length);
            catch (Exception ex)
                throw ex;
            return true;
            return false;

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