public ActionResult Edit([Bind(Include = "InfoId,Title,Description,Image, File")] DisplayInfo displayInfo, HttpPostedFileBase file)
{
if (ModelState.IsValid)
{
var currentInfo = db.DisplayInfo.Find(displayInfo.InfoId);
currentInfo.Title = displayInfo.Title;
currentInfo.Description = displayInfo.Description;
if (file != null && file.ContentLength > 0)
{
var img = ImageUploadController.ImageBytes(file, out string convertedLogo);
currentInfo.Image = img;
currentInfo.File = file.FileName;
}
else
{
currentInfo.Image = displayInfo.Image;
currentInfo.File = displayInfo.File;
}
db.Entry(currentInfo).State = EntityState.Modified;
db.SaveChanges();
return(RedirectToAction("Index"));
}
return(View(displayInfo));
}
//The ModelState variable only holds three key/value pairs in its dictionary after POST.
//They are Title, Description and File (which is the file name, and should so be called.
//Not sure whether or not Image should be in the Include parameter of the Bind method...
public ActionResult Create([Bind(Include = "InfoId,Title,Description,File")] DisplayInfo displayInfo, HttpPostedFileBase file)
{
byte[] image = ImageUploadController.ImageBytes(file, out string _64);
displayInfo.Image = image;
displayInfo.File = file.FileName;
if (ModelState.IsValid)
{
db.DisplayInfo.Add(displayInfo);
db.SaveChanges();
return(RedirectToAction("Index"));
}
return(View(displayInfo));
}
public ActionResult UploadImage(HttpPostedFileBase file)
{
try
{
//Using Helpers.ImageUploader.ImageBytes to get the byte[] representation of the file
//and extracting the string representation as a returned out-parameter
string imageBase64;
byte[] imageBytes = ImageUploadController.ImageBytes(file, out imageBase64);
//Add the base64 representation of the image to the ViewBag to be accessed by the View
ViewBag.ImageData = String.Format("data:image/png;base64,{0}", imageBase64);
ViewBag.Message = "Image uploaded successfully!";
return(View());
}
catch
{
//Using this empty string for the View to trigger when an upload fails
ViewBag.ImageData = "";
ViewBag.Message = "There was an error uploading your image :(";
}
return(View());
}