CODEWITHSUNDEEP
javascriptajaxasp.net-mvc
noclist
noclist

Reputation: 1819

return bool from Ajax call to MVC

I have an AJAX call to an MVC ActionResult in a controller, trying to return a bool.

My ajax call:

function CheckForExistingTaxId() {
    $.ajax({
        url: "/clients/hasDuplicateTaxId",
        type: "GET",
        contentType: "application/json; charset=utf-8",
        datatype: "json",
        data: JSON.stringify({ taxId: taxId }),
    });
}

My method: ("clients" is default route prefix)

[HttpGet, Route("hasDuplicateTaxId")]
    public ActionResult hasDuplicateTaxId(string taxId)
    {
        //if stuff
            return Json(true, JsonRequestBehavior.AllowGet);
        else
            return Json(false, JsonRequestBehavior.AllowGet);
    }

I want to open a modal dialog based on the result of the ajax call:

    if (CheckForExistingTaxId())
        DialogOpen();

First problem is I'm getting a 404 Not Found for clients/hasDuplicateTaxId. Is there a problem with my route or the way I'm calling it? Secondly, am I able to return a boolean value in this way, evaluating the function CheckForExistingTaxId() with the ajax call before opening the dialog?

Upvotes: 2

Views: 3901

Answers (1)

user4090029
user4090029

Reputation:

Basically if wanting to use Json with HttpGet:

    [HttpGet, Route("hasDuplicateTaxId")]
        public ActionResult hasDuplicateTaxId(string taxId)
        {
           // if 1 < 2
           return 1 < 2 ? Json(new { success = true }, JsonRequestBehavior.AllowGet) 
                        : Json(new { success = false, ex = "something was invalid" }, JsonRequestBehavior.AllowGet);
        }

ajax:

function CheckForExistingTaxId() {
    $.ajax({
        url: "/clients/hasDuplicateTaxId",
        type: "GET",
        contentType: "application/json; charset=utf-8",
        datatype: "json",
        data: JSON.stringify({ taxId: taxId }),
        success: function (data) {
            if (data.success) {
               // server returns true
            } else {
               // server returns false
               alert(data.ex); // alert error message
            }
        }
    });
}

Upvotes: 5

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