Username validation using MVC and jquery

Question

1.00/5 (1 vote)

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I am validating the username from server side,but i am unable to validate. The checkuser method is not getting called.

What I have tried:

C#

public JsonResult Checkuser(string userdata)
       {
           System.Threading.Thread.Sleep(200);
           var search = db.Test1.Where(x => x.name == userdata).FirstOrDefault();
           if(search!=null)
           {
            return Json(1);
           }
           else
           {
            return Json(0);
           }
       }

HTML

<script>
    function Usercheck()
    {
        $("#Status").html("Checking....");
        $.post("@Url.Action("Checkuser","Default2")",
            {
                userdata: $("#name").val()
            },
            function (data)
            {
                if (data == 0)
                {
                    $("#Status").html('<font color="Green"> Available ! </font>');
                    $("#name").css("border-color", "Green");

                }
                else
                {
                    $("#Status").html('<font color="Red"> User already exists</font> ');
                    $("#name").css("border-color", "Red");
                }
            });
    }
</script>

Posted 23-Oct-18 21:31pm

chandra sekhar

Updated 18-Nov-18 5:18am

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Comments

F-ES Sitecore 24-Oct-18 4:31am

return something like

return Json(new {success=true});

and

return Json(new {success=false});

then in the js check

if (data.success)

Richard Deeming 25-Oct-18 14:09pm

Where is your client-side Usercheck method called from?

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Vikram Motwani · Answer 1 · 2018-11-17T20:43:00

Not sure how you are calling the above Method (UserCheck)

You should use remote validations in MVC to make it work.

Implementing Remote Validation in MVC[^]

Another link which may help

Remote validation in MVC 5,To Check UserName and MailId is Already exist or not [^]

This is much simpler than what you have done, you would have to add "jquery.validate" and "jquery.validate.unobtrusive" to make Remote Validations work.

Sk Imad · Answer 2 · 2018-11-18T05:19:00

Try with this

$.post("@Url.Content("~/ControllerName/Checkuser")", { userdata: "Default2" }, function (data) {
 if (data != "") {
         alert("Ok")
 }
});



public JsonResult Checkuser(string userdata)
       {
           Object ret=0;
           System.Threading.Thread.Sleep(200);
           var search = db.Test1.Where(x => x.name == userdata).FirstOrDefault();
           if(search!=null)
           {
             ret=1;
             return Json(ret, JsonRequestBehavior.AllowGet);
           }
           else
           {
             return Json(ret, JsonRequestBehavior.AllowGet);
           }
       }

Username validation using MVC and jquery

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