Question

Is there an attribute I can decorate a single property on my model to tell the engine not to include the property in the validation routine?

[DoNotValidate] or [ValidateIgnore]

———————-More info.
Ok, I need to give you more information. In my situation, I have a temporary decimal value on my model that is not persisted, that gets formatted into currency. $540,000.
In this one case I do not want to strip the formatting out before I call TryUpdateModel. When you use TryupdateModel, it mvc will try and convert that string text box value back into a decimal and Model.IsValid will return false. I know how to get around this situation, using javascript, but it would be easier if I could tell mvc not to validate that field.

Answer 1

Change the type of your decimal to nullable decimal to prevent required validation:

    public class MyModel
    {
        public decimal MyValidatingDecimal { get; set; }

        public decimal? MyNonValidatingDecimal { get; set; }
    }

MyValidatingDecimal will be required (since it is a value-type), while MyNonValidatingDecimal will not be required.