Fileupload in asp.net c#

Hi *.*,

2 day's before i got a mail from one of reader regarding fileupload control in asp.net.He had certain needs also...

• Upload file to particular folder
• Get extension of file(Before Uploading)
• Save file in custom name
• Get Size of the file
• Server side and Client side validation

 Here it go...

Add a new fileupload control

                <td>

                    &nbsp;<asp:FileUpload ID="lmgUpload" runat="server" />

                </td>

On server side

public void Fileupload()

    {

        if (lmgUpload.HasFile) // Server Side validation

        {

            string _FilePath = lmgUpload.PostedFile.FileName; //  File Path [ Client Side ]

            string _Size = lmgUpload.PostedFile.ContentLength.ToString(); 

// Size of file in bytes

            string pat = @"\\(?:.+)\\(.+)\.(.+)";

            Regex r = new Regex(pat);

            Match m = r.Match(_FilePath);

            string file_ext = m.Groups[2].Captures[0].ToString(); //  Extension 

            string file_Name = txt_BrandName.Text.ToString().Trim() + "." + file_ext; // Adding custom Name

            lmgUpload.PostedFile.SaveAs(Server.MapPath(".\\img\\") + file_Name); 

// Saving file to Custom folder  [ img ]

        }

        else

        {

            string _Errmsg = "Select Image first !!!!";

        }

    }

Add a name space

Because of reason of using regular expression on server side, v need to add a namespace:

using System.Text.RegularExpressions;

For ClientSide validation:

I already posted that Checkout here:FileUpload Javascript Validation

If FileUpload control inside the Ajax UpdatePanel Checkout here:FileUpload inside the Ajax UpdatePanel

and finally finished with a smile... For trouble shoot contact me....

Stay Tune... 

Have a nice day... 'N happy Coding :)