jquery function returning nothing

ashutosh kumar gupta

13y2.5k

I am created a jquery function ShowAvailability(). This function calls a web service to check email existence into the database and return either true or false. From the webservice side it is returning either true or false but it comes to jquery side it is showing undifined.

WebService.asmx

----------------------------------

[WebMethod]

public string CheckUserNames(string Email)

{

IFileSystem objFileSystem = null;

string strResult = string.Empty;

try

{

objFileSystem = new FileSystemDAL();

strResult = objFileSystem.CheckUserName(Email);

}

catch (Exception ex)

{

throw ex;

}

return strResult;

}

Page.ascx

---------------------

<%@ Control Language="C#" AutoEventWireup="true" CodeBehind="CreateEditAccount_UC.ascx.cs" Inherits="FileSystem.UI.UserControls.CreateEditAccount_UC" %>

<%--this javascriptis used to show the message after valid statement.--%>

<%--write the following javascript for passing the parameter for jquery--%>

Create Account
First Name
Last Name
Email
Password
Renter	Width="242px">
Width="108px" />

I am calling the Jquery function ShowAvailability() on txtPassword OnClick event.

Please help me to show value undifined to either true or false.

2 Replies

Know the answer? Post it — somebody with the same question will find it here.

Iftikar Hussain13y ago
Hi,
Please modify your JQuery method ShowAvailability() as shown below

function ShowAvailability() {
var email = $("#txtEmail").val();
$.ajax({
type: "POST",
url: "InputAndOutput_WS.asmx/CheckUserNames",
contentType: "application/json; charset=utf-8",
data: '{"Email":"' + email + '"}',
dataType: "json",
success: OnSuccess,
failure: function (response) {
alert(response);
}
});
}

and in your WebService include Script block

[WebService(Namespace = "http://tempuri.org/")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
[System.ComponentModel.ToolboxItem(false)]
// To allow this Web Service to be called from script, using ASP.NET AJAX, uncomment the following line.
[System.Web.Script.Services.ScriptService]
public class InputAndOutput_WS : System.Web.Services.WebService
{

Please let me know if you need more information

Regards,
Iftikar

Remember to click "Mark as Answer" on the post, if it helps you.
Venkatesh Kumar13y ago
Please add script method attribute in WebMethod and check it. http://msdn.microsoft.com/en-us/library/system.web.script.services.scriptmethodattribute(v=vs.100).aspx