asp.net mvc validation must be a number custom error

Question

I am new to asp.net and I have a problem. When the users insert in a editor for a decimal field something other than numbers, they get an error \"Field name\" is not a number. B

Answer 1

Unfortunately this is is not a trivial task. However you can try the following hack... Better to do this only on essential fields, as this is more code to maintain.

In the controller's action method

if(ModelState.IsValid)
{
  // code
}
else
{
  if (ModelState["YourField"].Errors.Count > 0)
  {
    ModelState["YourField"].Errors.Clear(); 
    ModelState.AddModelError("YourField", "Your custom message here");
  }

  // code
}