I have only 3 roles in my application of admin, user and vendor. In my registration page, user can register as a user or vendor by selecting role from a dropdown.I have deleted all the existing roles from aspnet_Roles and given these 3 roles there. Now, on the registration page, i'm trying to assign the selected role to user using this code :

Roles.AddUserToRole(this.UserName, ddlUserType.SelectedItem.Text);

Here ddlUserType.SelectedItem.Text contains the text, which is there in RoleName field from aspnet_Roles table

This code is called after Account has been created.

However, its giving me an error of the role '' was not found

Can you pls tell me, where is the system looking for role, as it is there in db?Is it looking for the role in web.config file?

Also, i can see some roles in Web.config file as follows:

<add key="AdministratorRoles" value="Administrators;" />
<add key="NewsPublisherRoleName" value="Publishers" />
<add key="CalendarAdministratorRoles" value="Administrators,Publishers" />
<add key="AdManagerRoles" value="AdManager,Administrators" />
<add key="BlogAdministratorRoles" value="Administrators,Publishers" />

And one default user role as follows:

<add key="DefaultUserRoles" value="Users" />

What do i need to do with these roles in web.config file as i do not need them. Also i do not need any default role. In my application, user need to select the role from drop down list at the time of registration.
Shall i remove these roles from web.config file?