In Appbox, how do I display the User Management page for multiple roles that the user belongs to?

<f:templatefield width= "200px" headertext= "role" >
<ItemTemplate>
<asp:label id= "Label3" runat= "server" text= ' <%# getrolesname (Eval ("Roles"))%> ' ></asp:Label>
</ItemTemplate>

<summary>
Gets the user role name value, which is called in ASPX
</summary>
<param name= "Gender" ></param>
<returns></returns>
Protected string Getrolesname (object roles)
{
hashset<role> r = roles as hashset<role>;
list<string> list = new list<string> ();
for (int i = 0; i < r.count;i++)
{
Role rs= R.toarray () [i];
List. Add (Rs. Name);
}
Return String.Join (",", list);
}

In Appbox, how do I display the User Management page for multiple roles that the user belongs to?