Trigger an action method from View-CodePudding

I have an action method like this

  [HttpPost]
        [AllowAnonymous]
        [ValidateAntiForgeryToken]
        public ActionResult ExternalLogin()
        {
            string provider = "";
            string returnUrl = null;
            if (returnUrl.IsNullOrWhiteSpace())
            {
                returnUrl = Request.RawUrl;
            }

            // Request a redirect to the external login provider
            return new ChallengeResult(provider,
                Url.SurfaceAction<UmbracoIdentityAccountController>("ExternalLoginCallback", new { ReturnUrl = returnUrl }));
        }

I want to trigger this method when a particular view is rendered. I tried some thing like this

  @Html.Action("ExternalLogin", "UmbracoIdentityAccount");

But this throws an error

A public action method 'ExternalLogin' was not found on controller

Can anyone please point out what is the right approach to do this?

CodePudding user response：

The ASP.NET MVC AntiForgeryToken works through HTTP PUT, by design.

The @Html.Action() uses [HttpGet] method not the [HttpPost] as the ExternalLogin is defined.

Therefore, the simpler way is to change the action method definition to:

[AllowAnonymous]
public ActionResult ExternalLogin()
{
    ...
}