Ajax Synchronous call (VB.NET)

1. create web method in web service

Public Class AssetManagementWebService

    Inherits System.Web.Services.WebService

    

Public Function IsAppNameDuplicated(ByVal appKey As String, ByVal appName As String) As String

Return "abc"

End Function

End Class

2. calling web method in the javascript client code

$.ajax({

type: 'POST',

async: false,

url: 'WebServices/GetMaxRisk.asmx/IsAppNameDuplicated',

data: JSON.stringify({ 'appKey':ASPxTextBoxAppKey.GetValue(), 'appName':'b' }),

dataType: 'json',

contentType: 'application/json; charset=utf-8',

success: function (msg) {

result = msg.d;

},

error: function(e) {

}

});

if (result != '')

{

ASPxLabel_PopUpError.SetText(result);

ASPxPopupControl_Error.Show();

e.processOnServer = false;

}