Net Core 3 Identity

Question

User-224304729 posted

Hey everyone. I'm new to asp net core and i need some help. I scaffolded the Identity into my  web form razor project. The database name is ProiectLicenta where i can see all the Indentity tables. Basically what i am trying to do is if anyone registers i want their usernames and emails from the AspNetUsers table listed in another page called userlist. That table on the userlist has to update everytime a new person registers. Is it posible?

Answer 1

User-854763662 posted

Hi VasiloaeaStefan ,

I scaffolded the Identity into my  web form razor project.

ASP.NET Core team has decided not to support web forms. You web form razor project is a asp.net core razor pages project ?

For viewing the all registered user list, you could get them from UserManager<IdentityUser>  as shown:

Page behind-code

public class UserListModel : PageModel
{
        private readonly UserManager<IdentityUser> _userManager;

        public UserListModel(UserManager<IdentityUser> userManager)
        {
            _userManager = userManager;
        }

        public List<IdentityUser> UserList { get; set; }
        public void OnGet()
        {
            UserList = _userManager.Users.ToList();
        }
}

Razor Pages

@page
@model RazorPagesIdentityDemo3_1.UserListModel
@{
    ViewData["Title"] = "UserList";
}

<h1>UserList</h1>

<table class="table">
    <thead>
        <tr>
            <th>
                UserName
            </th>
            <th>
                Email
            </th>
            <th></th>
        </tr>
    </thead>
    <tbody>
        @for(var i=0;i<Model.UserList.Count;i++)
        {
            <tr>
                <td>
                    @Model.UserList[i].UserName
                </td>
                <td>
                    @Model.UserList[i].Email
                </td>
                <td>
                    <a asp-action="Edit" asp-route-id="@Model.UserList[i].Id">Edit</a> |
                    <a asp-action="Details" asp-route-id="@Model.UserList[i].Id">Details</a> |
                    <a asp-action="Delete" asp-route-id="@Model.UserList[i].Id">Delete</a>
                </td>
            </tr>
        }
    </tbody>
</table>

Result

Best Regards,

Sherry

Answer 2

User-224304729 posted

Thank you for your help and I'm sorry bothering you. Now I'm trying to use the delete function with the onpost page handler. I tried something but I don't know where i am going wrong here. The list of the users does appear, just can't get the delete function to work.

.cshtml.cs

    public class IndexModel : PageModel
    {
        private readonly UserManager<IdentityUser> _userManager;

        public IndexModel(UserManager<IdentityUser> userManager)
        {
            _userManager = userManager;
        }
        public List<IdentityUser> UserList { get; set; }
        public void OnGet()
        {
            UserList = _userManager.Users.ToList();
        }
        public async Task<ActionResult> OnPostDel(string id)
        {
            UserList = _userManager.Users.ToList();
            var User = await _userManager.FindByIdAsync(id);
            if (User != null)
            {
                IdentityResult result = await _userManager.DeleteAsync(User);
            }
            return RedirectToPage("Index");
        }
    }
}

.cshtml

...
                <td>
                    <a asp-action="Edit" asp-route-id="@Model.UserList[i].Id">Edit</a> |
                    <a asp-action="Details" asp-route-id="@Model.UserList[i].Id">Details</a> |
                    <a asp-page-handler="Del" asp-route-id="@Model.UserList[i].Id">Delete</a>
                </td>
...

Answer 3

User-224304729 posted
I'm still strugling with this. Can anyone give ne a heads up on how i can configure the Delete button so it will delete the user from the AspNetUsers database?

Answer 4

User-854763662 posted

Hi VasiloaeaStefan ,

The param of HttpPost request is applied to body, as form param, not as query params. So change your handler to OnGet as shown:

public async Task<ActionResult> OnGetDel(string id)
{
            UserList = _userManager.Users.ToList();
            var User = await _userManager.FindByIdAsync(id);
            if (User != null)
            {
                IdentityResult result = await _userManager.DeleteAsync(User);
            }
            return RedirectToPage("Index");
}

Best Regards,

Sherry