Hi Scott,

I'm trying to validate the username field through a regular expression. But the problem is, I can't find where the user name textbox is. Could you help me identify it?

Thanks.

That's the problem Scott,

I'm using the default DNN registration. It'll be very easy if there exists a txtUsername field. But I can't find that textbox.

On the registration page, here's what produces the registration form:

[dnn:propertyeditorcontrol id="UserEditor"
    enableClientValidation = "true"
    sortmode="SortOrderAttribute"
    labelstyle-cssclass="SubHead"
    helpstyle-cssclass="Help"
    editcontrolstyle-cssclass="NormalTextBox"
    labelwidth="150px"
    editcontrolwidth="200px"
    width="350px"
    editmode="Edit"
    errorstyle-cssclass="NormalRed" ]

Any thought on this?

Thanks.

Hah, this is funny.

When I browsed the Controls folder to modify the urlcontrol.ascx, I found out in that folder, DNN creates a user.ascx file which contains the registration form and all necessary fields to create a regular expression.

Problem solved! Sometimes luck is better than smartness after all.