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Thread: How to call backend code from js?

  1. #1

    Thread Starter
    Fanatic Member
    Join Date
    Nov 2003
    Posts
    775

    Question How to call backend code from js?

    Hi

    Iím new to ASP NET MVC (NetCore 3.1), how to call a method from js?

    Code:
    Public async Task(int) Mytest(int _i)
    {
    
        return _i*5;
    }
    
    Just a simple code example, how to call and get its return value from js?

  2. #2
    Superbly Moderated NeedSomeAnswers's Avatar
    Join Date
    Jun 2002
    Location
    Manchester uk
    Posts
    2,653

    Re: How to call backend code from js?

    Code:
    $.ajax({
                url: '/ControllerName/ControllerMethod',   // eg if your controller is call UserController and you method is GetUser then = '/User/GetUser'
                method: 'GET',
                data: { argumentName: argumentValue },
                success: function (Result) {  //Result is your return item which can be a single property or an object
    
                    // you could then pass the result to a textbox on the page for instance
    
                    $("#txtUserName").text = Result;
    
                },
                error: function () {
                   
                }
            });
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