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Editorial Team
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Asked: 2026-06-04T00:57:49+00:00

I need to implement the following custom action filter: Action filter, when applied to

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I need to implement the following custom action filter:

Action filter, when applied to an action CountRows, should in it’s OnActionExecuting hander “remember” the action it is being invoked before, and redirect a client browser to a Login action for example. But the login action should somehow know the original action that was called, so that after the login is done, it will immediatly redirect back to CountRows.

I am guessting I can save the original action name name in filterContext‘s TempData, but how do I implement the scenario in general?

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  1. Editorial Team

    You shouldn’t need temp data. Ideally, your SignIn GET action should take a string returnUrl parameter. Then you can just use the filter and pass the filterContext.HttpContext.Request.RawUrl to the sign in. Have it write the redirect URL to a hidden field in the sign in form. Then when they POST, do the auth, and return a Redirect(model.ReturnUrl).

    MVC actually has this behavior by default, if you decorate the protected action with an [Authorize] attribute. Technically it passes the Request.Url.Path and not the RawUrl, but the concept and result is the same.

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