CODEWITHSUNDEEP
asp.net-mvcrazor
BrendanMcKee
BrendanMcKee

Reputation: 846

In Razor EditorFor template prevent rendering a default value

In my Razor view. I have markup like this:

<div class="form-group">
    @Html.LabelFor(model => model.Principal, new { @class = "control-label col-md-3" })
    <div class="col-md-8">
        @Html.EditorFor(model => model.Principal)
    </div>
</div>

Principal has the Required data annotation, so my html is rendered as so:

<input class="text-box single-line" data-val="true" data-val-number="The field Principal must be a number." data-val-required="The Principal field is required." id="Principal" name="Principal" type="text" value="0.00">

I want exactly this behavior just without the default value. Is there any way to do this without creating my own editor template?

Principal is a decimal. Making it nullable is not an option in this case, I want to force the user to input a valid number.

Upvotes: 3

Views: 457

Answers (2)

Rajeshkumar Kandhasamy
Rajeshkumar Kandhasamy

Reputation: 6461

There is One way through Jquery. In your model no need to make property nullable.

Just re-assign the value through Jquery if your Textbox is having default value.

$(document).ready(function () {
   if($('#Principle ').val() == '0.00' || $('#Principle ').val() == '0')
   {
       $('#Principle ').val('');
   }
});

This will be triggered when the page is once ready / Completed the loading.

As you know .Net Framework default value will be assigned when if you don't assign the value for the Value Types.

Upvotes: 1

Erik Funkenbusch
Erik Funkenbusch

Reputation: 93424

I assume that Principle is a decimal type in your model. Decimal types are value types and non-nullable, thus .net must always assign a value. If you don't, it assigns the default.

If you don't want the default, you must make the property nullable.

Upvotes: 4

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