upload Image on server

Question

User206113050 posted

 

Hello All,

I am phasing a problem when i upload an image on server then it shows the below error msg. but it works fine on local.

A generic error occurred in GDI+.

 

using below code:

 

 protected void btnUploadNewsImage_Click(object sender, EventArgs e)
        {
            if (fupldNewsImage.PostedFile.ContentLength > 0)
            {
                if (ViewState["Case"].ToString() != "Edit")
                {
                    if (File.Exists(Server.MapPath(ConfigurationManager.AppSettings["SaveNewsImages"])+ViewState["ImagePath"].ToString()))
                    {
                        File.Delete(Server.MapPath(ConfigurationManager.AppSettings["SaveNewsImages"])+ ViewState["ImagePath"].ToString());
                    }
                    ViewState["ImagePath"] = UploadImage(fupldNewsImage);
                    imgNewsImage.ImageUrl = "~/"+GetNewsImagePath() + ViewState["ImagePath"].ToString();
                    imgNewsImage.Visible = true;
                }
                else
                {
                    if (File.Exists(Server.MapPath(ConfigurationManager.AppSettings["SaveNewsImages"]) + ViewState["ImagePath"].ToString()))
                    {
                        File.Delete(Server.MapPath(ConfigurationManager.AppSettings["SaveNewsImages"]) + ViewState["ImagePath"].ToString());
                    }
                    ViewState["ImagePath"] =UploadImage(fupldNewsImage);
                    imgNewsImage.ImageUrl = "~/"+GetNewsImagePath() + ViewState["ImagePath"].ToString();
                }
            }         

        }

 

 

private string UploadImage(FileUpload fileUpload)
        {
            string strFilePath = "";
            try
            {

                string fullPath = ConfigurationManager.AppSettings["SaveNewsImages"];

                string tempPath = ConfigurationManager.AppSettings["TempImages"];

                Random rd = new Random();
                string s = rd.Next().ToString();
                strFilePath = fullPath;
                strFilePath += s + ".jpg";
                string strTempPath = tempPath + s + ".jpg";
                fileUpload.PostedFile.SaveAs(Server.MapPath("~/"+strTempPath));
                System.Drawing.Image fullSizeImg = System.Drawing.Image.FromFile(Server.MapPath("~/"+strTempPath));
                System.Drawing.Image shortImg = ResizeImage(fullSizeImg,75);
                string realPath = strFilePath;
                shortImg.Save(Server.MapPath("~/" + realPath));
                return s + ".jpg";
            }
            catch (Exception ex)
            {
                throw ex;
            }
            /*
             * Return the filename to be stored in the DB
             */
        }

 

pls give me suitable response

 

Thanks.

 

Answer 1

User1742304165 posted

I am not sure if this is causing it but you can't use the ~/ when working with the filesystem

 string fullPath = ConfigurationManager.AppSettings["SaveNewsImages"];

                string tempPath = ConfigurationManager.AppSettings["TempImages"];

                Random rd = new Random();
                string s = rd.Next().ToString();
                strFilePath = fullPath;
                strFilePath += s + ".jpg";
                string strTempPath = tempPath + s + ".jpg";
                fileUpload.PostedFile.SaveAs(Server.MapPath(strTempPath));
                System.Drawing.Image fullSizeImg = System.Drawing.Image.FromFile(Server.MapPath(strTempPath));

//Not sure if you have a function Called ResizeImage but i think it is ResizeImageFile(byte[] length, Size), this is probably where your issue is coming from.
                System.Drawing.Image shortImg = ResizeImage(fullSizeImg,75);

//no need to to set reaPath p= to strFilePage since i is already in full context.  your just setting a string to another string without changing anything
                shortImg.Save(Server.MapPath(fullPath));
                return s + ".jpg"; 

Hope this helps (question, are you using the fileupload control o just an input type=file html element

Joshua