Returning bool value from ajax is not similar to any simple function that returns the bool value. BUT DON’T WORRY! it isn’t even too difficult. it’s just slightly different.
Solution
var alreadyExists = function () {
var role = $("#UserRole").val();
var notexists = false;
$.ajax
({
url: "@(Url.Action("checkExists", "UserManagement"))",
data: { role: role },
contentType: "application/json; charset=utf-8",
type: 'GET',
async: false,
dataType: "json",
success: function (result) {
if (result.length > 0)
{
alert("This User Role already exists");
notexists = false;
}
else {
notexists = true;
}
}
});
return notexists;
}
Explanation
- I just declared a variable that contains false initially i.e.. var notexists = false;
- Added async: false, just after type. DO NOT MISS THIS STEP!
- Stored the value in the variable based on the conditions in success e.g. notexists= true or notexists=false
- Finally, returned the variable contain bool value just before the function alreadyExists ends e.g. return notexists;
Now, You are good to go! 🙂
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