Question

I’m new to ASP.net, MVC, C# and I’m working on a project that requires me to delete a person from a database. The table has been specifically setup to accommodate adding and deleting users as there will be a small number of people using this particular application.

I’m having trouble understanding where the Controller Post function gets its parameters from.

My controller contains:

public ActionResult DeleteUser()
{
    return View(new tblPermission());
}

[HttpPost]
public ActionResult DeleteUser(int? id)
{
    if(id == null)
    {
         return View(id);
    }

    Permission.DeleteUser((int)id);

    return RedirectToAction("AdminIndex");
}

When I test this function, I’m always hitting the id == null condition because I’m not passing in the id. What confuses me is, how do I get the user ID to pass it into this function call? Do I need to get this information and pass it in, in my view layer?

This is my view layer:

@model MAA_v2.Models.tblPermission

<script src="@Url.Content("~/Scripts/jquery-1.5.1.min.js")" type="text/javascript"></script>
<script src="@Url.Content("~/Scripts/jquery.validate.min.js")" type="text/javascript">  </script>
<script src="@Url.Content("~/Scripts/jquery.validate.unobtrusive.min.js")" type="text/javascript"></script>

@using (Html.BeginForm()) {
    @Html.ValidationSummary(true)
    <fieldset>
        <legend>Remove</legend>

        <p>
            <input type="submit" value="Remove" name="Remove" class="button action-button "    />
            @Html.ActionLink("Back", "AdminIndex", "Maintenance", new { @class = "button action-button" })
        </p>
    </fieldset>
}

<div>
    @Html.ActionLink("Back to Admin Maintenance", "AdminIndex")
</div>

Answer 1

Value is being passed from the http form, for example

<input type="hidden" id="id" name="id" value="123">