I created a new member type called IntranetMember and I want to set the value of this PasswordID property in the code. For that I need a setter in the Model. How can I create a setter in this Model?

public partial class IntranetMember
{
    ///<summary>
    /// Passwort ID
    ///</summary>
    [ImplementPropertyType("passwordID")]
    public string PasswordID
    {
        get { return this.GetPropertyValue<string>("passwordID"); }
        set { }
    }
}

Below is the code where i want to set the value in the member type property.

intranetMember.PasswordID = passwordId;