Sorry if this has been already posted but I couldn't find it in any of my searches.

I have been having quite a few problems with localization.

First, the fact that DNN doesn't localize CheckBoxLists correct  forced me to hardcode the text on all CheckboxLists which sucks.

Now, while bulletproofing I have came across another when using a RequiredFieldValidator you can't use the resourcekey ErrorMessage correctly.

This code

<asp:RequiredFieldValidator ID="FieldNameReq" ControlToValidate="FieldName" resourcekey="FieldNameReq" Text="*" runat="server" />

Using this resource

  <data name="FieldNameReq.ErrorMessage" xml:space="preserve">
    <value>Field cannot be blank</value>
  </data>

Displays a blank ErrorMessage in the ValidationSummary but

This code

<asp:RequiredFieldValidator ID="FieldNameReq" ControlToValidate="FieldName" resourcekey="FieldNameReq.ErrorMessage" Text="*" runat="server" />

Using this resource

  <data name="FieldNameReq.ErrorMessage" xml:space="preserve">
    <value>Field cannot be blank</value>
  </data>

works but it replaces the Text with the ErrorMessage and of course that is not correct.

I'm I just missing something or localization not fully functional? Any insight would be greatly appreciated!

Try this:

Code

<asp:RequiredFieldValidator ID="FieldNameReq" ControlToValidate="FieldName" resourcekey="FieldNameReq" Text="*" runat="server" />

Resource

  <data name="FieldNameReq.Text" xml:space="preserve">
    <value>Field cannot be blank</value>
  </data>

The ErrorMessage extension doesn't work (as expected).