Question

I was under the impression that using an annotation like this:

<Required()>
<DisplayName("Choose a Password:")>
<ValidatePasswordLength()>
<DataType(DataType.Password)>
Public Property Password As String

Would create a masked field when used in the view:

<%: Html.TextBoxFor(Function(model) model.Password) %>
<%: Html.ValidationMessageFor(Function(model) model.Password) %>

However this is rendered without the type=”password”

What is the “DataType.Password” used for if not this?

Answer 1

You are using Html.TextBoxFor which always outputs an <input type="text"> tag in the resulting HTML.
If you want the DataType.Password annotation to be automatically honored you should use Html.EditorFor instead.
You can read more about editor templates and how to customize them here: http://bradwilson.typepad.com/blog/2009/10/aspnet-mvc-2-templates-part-1-introduction.html