How do I route a value of an IdentityUser (like Username) and not the entire object?

Question

So my View looks like this:

@model List<ListUsers>



<div class="card-deck">
    @foreach (var user in Model)
    {
        <div class="card m-3" style="min-width: 18rem; max-width:30.5%">

            <div class="card-header">
                <h5>@user.FriendId</h5>
            </div>

            <div class="card-body">
                <h2>@user.FriendName</h2>
            </div>


            <div class="card-footer text-center">
                <a asp-controller="account" asp-action="showprofile" asp-route-id="@user"
                   class="btn btn-primary">ShowProfile</a>
            </div>
        </div>
    }
</div>

Even if I write

"asp-route-id="@user.FriendId"

(and I can see in the source code of the page in the browser that the ID is appended in the url) it hands the entire IdentityUser Object to the corresponding actionmethod. I just want the string.

This doesn't work either.

"asp-route-id="@user.FriendId.ToString()"

Thank you!

Answer 1

First confirm the field type of FriendId, receive the same type of parameter in the showprofile action, and receive the parameter with "id" variable name.

    public IActionResult showprofile(int id)//if it is string type,use 'string id' to receive
    {
       // do what you want 
        return View();
    }

You can also refer to this .