How to Implement Custom Role Provider in Asp.Net MVC

As I have discussed in earlier article that programmer need to implement custom provides to enable its own database works with in-built functionality. My previous article was to implement custom membership provider and in this article I will continue with custom role provider in MVC.

By following these simple steps we will complete the task:

  • Create a class "Custom_RoleMembership" in Models folder in your MVC application.
  • Inherit this from RoleProvider class exists in "System.Web.Security" namespace.
  • Right click on RoleProvider and select on “Implement Abstract Class”, it will all the override function need to be implement by us.
  • Just implement GetRolesForUser(string username) method and replace that function with the following code:

    public override string[] GetRolesForUser(string username)
    {
    //Get roles for this username and return in string array
    if(username=="admin")
    return new string[] { "Admin" };
    return null;
    }


  • Go to HomeController and place an attribute like below:

    [Authorize(Roles = "Admin")]
    public ActionResult Index()
    {
    ViewBag.Message = "Modify this template to jump-start your ASP.NET MVC application.";
    return View();
    }
  • Open web.config file and place below code under system.web tag

    <roleManager defaultProvider="Custom_RoleMembership" enabled="true">
      <providers>
    <clear />
    <add name="Custom_RoleMembership"
    type="CustomMembershipP.Models.Custom_RoleMembership"  />
      </providers>
    </roleManager>

Now run the application and open Index page, it will redirect you on login view. Login with username = admin and password = password and debug this application, it will check the above method GetRolesForUser(). If there is a role for this user then it will go to index view otherwise return to login page.

In my case I have used only one username and return admin only from the method. But you can check the roles in your database and return them in string array. If there is a role “admin” in your array then only it will open index page.

How to Implement Custom Role Provider in Asp.Net MVC How to Implement Custom Role Provider in Asp.Net MVC Reviewed by Subhash Sharma on July 20, 2014 Rating: 5

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