Plz Help : Want to clear Email,Question, Answer TextBoxes in CreateUserWizard control

[asumal]

Hello

I am new to ASP.NET. I am using CreateUserWizard control to register & create a user. I am using Membership API. I have a Cancel button on the second step of CreateUserWizard control alongwith Create User button & Previous button. Actually, i have added some more textboxes on the default control for taking user's personal information. The problem is that when i call the below mentioned code all textboxes for user's personal information gets cleared but not the default controls on the CreateUserWizard control which takes user's login ,Email, Security question, answer's information. My code is as follows:

protected void CreateUserWizard2_CancelButtonClick(object sender, EventArgs e)
{//Calling a function & passing all the createuserwizard controls
DisplayControl(CreateUserWizard2.CreateUserStep.Co ntentTemplateContainer.Controls);
fstname.Focus();
}

private void DisplayControl(ControlCollection Controls)
{ //recusive routine that can go through the entire control hierarchy
//making empty all textbox controls except with id=username
foreach (System.Web.UI.Control control in Controls)
{
if (control is System.Web.UI.WebControls.TextBox )
{
if (((System.Web.UI.WebControls.TextBox)control).ID != "UserName")
((System.Web.UI.WebControls.TextBox)control).Text = "";
}
if (control.Controls != null)
{
DisplayControl(control.Controls);
}
}

}