asp.net mvc post json receiving data transmitted by the dynamic and easy access into a sequence of code

[HttpPost]
public ActionResult Login()
{
    var form = JsonConvert.DeserializeObject<dynamic>(new StreamReader(Request.InputStream).ReadToEnd());
    string username = form.username;
    string password = form.password;
    ....
}

x

 

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[HttpPost]

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public  ActionResult  Login ()

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{

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    var form = JsonConvert.DeserializeObject<dynamic>(new StreamReader(Request.InputStream).ReadToEnd());

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    string username = form.username;

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    string password = form.password;

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    ....

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}