Web forms - Manage users and roles (Identity 2.2.1 )

Question

Hello,

 

I want to build an admin panel where the admin can create roles,users, assign users to roles and reset passwords. I'm using Identity 2.2.1 with web forms

 

I would appreciate any kind of help. Thank you in advance.

 

I' m having problem with the following two.  

 

Resetting the password

I tried using the default ResetPassword.aspx in Account folder but I get the following error "An error has occurred" .

 

Create role and assign role at the same time:

 I'm using the following code:

protected void btnAssignRole_Click1(object sender, EventArgs e)
       {
           RoleActions role = new RoleActions();

           role.AddUserAndRole(roleTxt.Text, userTxt.Text, emailTxt.Text, passTxt.Text);
       }

 

but I get the following error "An exception of type 'System.InvalidOperationException' occurred in mscorlib.dll but was not handled in user code. Additional information: UserId not found." in RoleActions.cs

 

internal void AddUserAndRole(String role, String user, String email, String pass)
       {
           Models.ApplicationDbContext context = new ApplicationDbContext();
           IdentityResult IdRoleResult;
           IdentityResult IdUserResult;

           var roleStore = new RoleStore<IdentityRole>(context);

           var roleMgr = new RoleManager<IdentityRole>(roleStore);

           if (!roleMgr.RoleExists(role))
           {
               IdRoleResult = roleMgr.Create(new IdentityRole { Name = role });
           }

           var userMgr = new UserManager<ApplicationUser>(new UserStore<ApplicationUser>(context));
           var appUser = new ApplicationUser
           {
               UserName = user,
               Email = email
           };
           IdUserResult = userMgr.Create(appUser, pass);

               if (!userMgr.IsInRole(user, role))
               {
               IdUserResult = userMgr.AddToRole(user, role);
           }
       }