Upload only image file in ASP.net

Upload only image file

 

We can define the file type to upload . Here the code will allow upload only image file. If you try to upload other type file then it will print one message.

protected void Button1_Click(object sender, EventArgs e)

    {

        if (FileUpload1.HasFile)

        {

            if ((FileUpload1.PostedFile.ContentType).Equals("image/pjpeg"))

            {

                try

                {

                    FileUpload1.SaveAs("D:\\" + FileUpload1.FileName);

                    Response.Write("Filename-" + FileUpload1.FileName + "<br/>");

                    Response.Write("File size-" + FileUpload1.PostedFile.ContentLength + "<br/>");

                    Response.Write("File Type-" + FileUpload1.PostedFile.ContentType + "<br/>");

                }

                catch (Exception ex)

                {

                    Response.Write(ex.Message);

                }

            }

            else

            {

                Response.Write("Choose image .jpg file to upload");

            }

           

        }

   }

N.B If you want to restrict large file from upload then use the following code

if (fileUpload.PostedFile.ContentLength<=2048000)

             {    

                                     fileUpload.PostedFile.SaveAs(Server.MapPath(folderName)+"\\"+fileName);    

                                       return "File uploaded successfully";    

             }

            else

  {

       return "Unable to upload,file exceeds maximum limit";

            }