c# - How to change the ErrorMessage for int model validation in ASP.NET MVC?

Question

I have a model with a property defined like this:

    [Required(ErrorMessage="Please enter how many Stream Entries are displayed per page.")]
    [Range(0,250, ErrorMessage="Please enter a number between 0 and 250.")]
    [Column]
    public int StreamEntriesPerPage { get; set; }

This works unless the user enters something like "100q". Then a rather ugly error is displayed that says "The value '100q' is not valid for StreamEntriesPerPage."

Is there an attribute I can use to override the default error message when input is not an int?

Answer 1

Yes, you can use Data annotations extensions, mark your property as the following:

[Required(ErrorMessage = "Please enter how many Stream Entries are displayed per page.")]
[Range(0, 250, ErrorMessage = "Please enter a number between 0 and 250.")]
[Column]
[DataAnnotationsExtensions.Integer(ErrorMessage = "Please enter a valid number.")]
public int StreamEntriesPerPage { get; set; }