override error message (The value 'xxx' is not valid for Age) when input incorrect data type for input field asp.net mvc

Question

I\'ve tried to override error message when input incorrect data type in input field on HTML form. For example I have the model like this.

public class Person         


        

Answer 1

I just wanted to show the Range attribute error message so I used the answer from wechel and Christna and changed it so the RangeAttribute is used. After adding the Validator class, only a custom Validator needs to be created and registered in the global.asax as shown in wechel's answer.

You also need to add a validation message with name "FieldRangeValidation" to your resource bundle. In my project it contains the following text: "Value must be between {0} and {1}"

public class ValidIntegerRangeValidator : DataAnnotationsModelValidator
{
    public ValidIntegerRangeValidator(ModelMetadata metadata, ControllerContext context, RangeAttribute attribute)
        : base(metadata, context, attribute)
    {
        try
        {
            if (attribute.IsValid(context.HttpContext.Request.Form[metadata.PropertyName]))
            {
                return;
            }                
        }
        catch (OverflowException)
        {
        }

        var propertyName = metadata.PropertyName;
        context.Controller.ViewData.ModelState[propertyName].Errors.Clear();
        context.Controller.ViewData.ModelState[propertyName].Errors.Add(string.Format(Resources.Resources.FieldRangeValidation, attribute.Minimum, attribute.Maximum));
    }
}