CODEWITHSUNDEEP
asp.net-mvc
FreeVice
FreeVice

Reputation: 2697

How to UpdateModel without some fields?

I have ImageUrl in my object. If the entity edited without reference to picture, it's field reset. How I can correctly update object?

    public ActionResult Index()
    {
        var items = db.Employes;
        return View(items);
    }

    public ActionResult Edit(int id = 0)
    {
        var item = (id != 0) ? db.Employes.Find(id) : new Employee();

        return View(item );
    }

    [HttpPost]
    [ValidateInput(false)]
    public ActionResult Edit(int id = 0, FormCollection formValues = null, Employee item = null)
    {
        if (id == 0)
            db.Employes.Add(item);
        else
        {
            item = db.Employes.Find(id);
            UpdateModel(item);
        }

    Helpers.FileSave("Image", item, formValues);

        db.SaveChanges();

        return RedirectToAction("Index");
    }

upd1:

after excludind field from updateModel, I can't add new images:

if (id == 0)
        db.Employes.Add(item);
    else
    {
        item = db.Employes.Find(id);
        if (formValues["Image"] != null)
        {
            UpdateModel(item);
            Helpers.FileSave("Image", item, formValues);
        }
        else
        {
            string[] excludeProperties = { "Image" };
            UpdateModel(item, null, null, excludeProperties);
        }
    }

Upvotes: 0

Views: 1055

Answers (2)

Tassadaque
Tassadaque

Reputation: 8199

First don't exclude properties second,In your else part of updated code add the following line

item.Image =formValues["Image"]

then call the update model

Upvotes: 1

leon.io
leon.io

Reputation: 2824

You should use the excludeProperties and includeProperties when calling UpdateModel.

In short...

string[] includeProperties = { “Name”, “Description”, “Active” };
UpdateModel(myModelView, includeProperties);

Upvotes: 2

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