How do I get the collection of Model State Errors in ASP.NET MVC?

Question

How do I get the collection of errors in a view?

I don\'t want to use the Html Helper Validation Summary or Validation Message. Instead I want to check for errors an

Answer 1

If you don't know what property caused the error, you can, using reflection, loop over all properties:

public static String ShowAllErrors(this HtmlHelper helper) {
    StringBuilder sb = new StringBuilder();
    Type myType = typeof(T);
    PropertyInfo[] propInfo = myType.GetProperties();

    foreach (PropertyInfo prop in propInfo) {
        foreach (var e in helper.ViewData.ModelState[prop.Name].Errors) {
            TagBuilder div = new TagBuilder("div");
            div.MergeAttribute("class", "field-validation-error");
            div.SetInnerText(e.ErrorMessage);
            sb.Append(div.ToString());
        }
    }
    return sb.ToString();
}

Where T is the type of your "ViewModel".