in asp.net,c# when i create user it aoutomaticaly logged in to newly created user how can i prevent

with administrator loggin i create user and after completion of create user when i click to continue button from create wizard it goes to page showing list of users
but as soon as click button it aoutomaticaly recently created user loggen in and administrator session expires
plz give me solution to prevent it
public partial class CreateUser : System.Web.UI.Page
{
TextBox username;
protected void Page_Load(object sender, EventArgs e)
{
Class1.OpenConn();
string[] rolesArray;
if(!(IsPostBack))
{
rolesArray = Roles.GetAllRoles();
rdButtonListRoles.DataSource = rolesArray;
rdButtonListRoles.DataBind();
}
if(IsPostBack)
{
Class1 cs = new Class1();
username = (TextBox)CreateUserWizard1.CreateUserStep.ContentTemplateContainer.FindControl("UserName");
ProfileCommon newProf;
newProf = Profile.GetProfile(username.Text);
TextBox MobileNo, name, Sirname;
name = (TextBox)CreateUserWizard1.CreateUserStep.ContentTemplateContainer.FindControl("txtname");
Sirname = (TextBox)CreateUserWizard1.CreateUserStep.ContentTemplateContainer.FindControl("txtSirname");
MobileNo = (TextBox)CreateUserWizard1.CreateUserStep.ContentTemplateContainer.FindControl("MobileNo");

newProf.Name = name.Text;
newProf.Sirname = Sirname.Text;
newProf.MobileNo = MobileNo.Text;

newProf.Save();
RoleDiv.Visible = false;
}
}


protected void ContinueButton_Click(object sender, EventArgs e)
{

for (int i = 0; i < rdButtonListRoles.Items.Count; i++)
{

if (rdButtonListRoles.Items.Selected == true)
{
if (!Roles.IsUserInRole(username.Text, rdButtonListRoles.Items.Text))
{
Roles.AddUserToRole(username.Text, rdButtonListRoles.Items.Text.ToString());
}
}
else
{
if (Roles.IsUserInRole(username.Text, rdButtonListRoles.Items.Text))
{
Roles.RemoveUserFromRole(username.Text, rdButtonListRoles.Items.Text.ToString());
}
}

}


Response.Redirect("ManageUser.aspx");
}
protected void CreateUserWizard1_CreatedUser(object sender, EventArgs e)
{

}

}