CODEWITHSUNDEEP
c#asp.net-mvcvalidationasp.net-coreerror-handling
Rob
Rob

Reputation: 225

Display Model state Errors in View?

How can I display ModelState in my View? I have the following code for validation but I am not able to display Modelstate error in my View.

I have this conditions my action:

        if (!ModelState.IsValid)
            return BadRequest(ModelState.Values.SelectMany(v => v.Errors).Select(error => error.ErrorMessage));

     else if (ModelState.IsValid)
            {         
            if (updatedProduct.ProductSRDate.Value > DateTime.Now)
                ModelState.AddModelError("ProductSRDate", " Date must be current date or in the past.");               
            var PrjEditMode = await ProductService.GetProductsbyId(id);
            var editMode = Mapper.Map<ProductDetails>(PrjEditMode);
            return View(editMode);
        }

In View I have Validation Summary as: 

@Html.ValidationSummary(false, "", new { @class = "text-danger" })

But it only display Date must be current date or in the past. when there is a nullable field it display `Date must be current date or in the past.

0 "The value '' is invalid.".

enter image description here

Upvotes: 2

Views: 6779

Answers (1)

XAMT
XAMT

Reputation: 1627

You can Access ModelState class in view with the key :

Controller : ModelState.AddModelError("ProductSRDate", "Date must be current date or in the past.");

View : @Html.ValidationMessage("ProductSRDate")

But you're code logical error because you add an error to your ModelState if IsValid.

if (!ModelState.IsValid || updatedProduct.ProductSRDate.Value > DateTime.Now)
{
    if (updatedProduct.ProductSRDate.Value > DateTime.Now)
    {
        ModelState.AddModelError("ProductSRDate", " Date must be current date or in the past.");
    }
    //return BadRequest(ModelState.Values.SelectMany(v => v.Errors).Select(error => error.ErrorMessage));
    return View(editMode); // You should return a view and handle Invalid ModelState in view.
}
else
{
    var PrjEditMode = await ProductService.GetProductsbyId(id);
    var editMode = Mapper.Map<ProductDetails>(PrjEditMode);
    return View(editMode);
}

Upvotes: 2

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