unable to call a webmethod in vb.net

Question

1.00/5 (2 votes)

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$('table').delegate('td.EditRow','click',function () {
var $row = this;
var userid = $row.id;
$('#hdnUserId').val(userid);
$.ajax({
type: "POST",
url: "User_Create_Update.aspx/FillUserDetails",
data: "{'userid': " + userid + "}",
contentType: "application/json; charset=utf-8",
dataType: "json",
success: function (msg) {
if (msg.d != '') {
$('#txtUserCode').val(msg.d.USRM_USER_CD);
$('#txtUserName').val(msg.d.USRM_USER_NAME);
$('#txtUserPswd').val(msg.d.USRM_PASSWORD);
$('#txtExpiryDate').val(msg.d.USRM_EXPIRY_DT);

}
//alert(msg.d);
}
});

$('#divPopUp').lightbox_me({
lightboxSpeed: 500,
centered: true,
closeClick: true,
closeEsc: true
})
});

XML

<System.Web.Services.WebMethod()> _
   <ScriptMethod(ResponseFormat:=ResponseFormat.Json)> _
   Public Shared Function FillUserDetails(ByVal userid As String) As DataTable

       Dim dt As DataTable = clsUSRM.GetAllById(userid)
       If dt.Rows.Count > 0 Then
           clsUSRM.USRM_USER_CD = userid
           clsUSRM.USRM_USER_NAME = dt.Rows(1).ToString()
           clsUSRM.USRM_PASSWORD = dt.Rows(2).ToString()
           clsUSRM.USRM_EXPIRY_DT = dt.Rows(3).ToString()
       End If
       Return dt
   End Function

Posted 30-Jan-13 0:17am

sayed farhan

Updated 31-Jan-13 1:50am

v3

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Comments

Sandesh M Patil 30-Jan-13 7:22am

Dont post same question multiple times

sayed farhan 30-Jan-13 7:51am

my subject was not correct so that's why i have posted again
can u please help me

Kschuler 31-Jan-13 11:51am

If something is wrong with your question, you should click the Improve Question link and edit it. Not post again.

ZurdoDev 30-Jan-13 8:39am

Is there an error? Do you have [System.Web.Script.Services.ScriptService] on your webservice class?

sayed farhan 30-Jan-13 8:56am

hi ryan i am new to all this can u please tell me from where to check webservice class

i have Imports System.Web.Services in my .vb page

ZurdoDev 30-Jan-13 9:05am

after your imports statement will be a declaration of your class. You need [System.Web.Script.Services.ScriptService] right above your class declaration, as an attribute of the class. If you created the webservice with the "Add new" webservice option it likely is already there but commented out.

sayed farhan 30-Jan-13 8:59am

there is no error but still i am unable to access webmethod which i have return in .vb page also i have checked my syntax in .js page for ajax it is right

ZurdoDev 30-Jan-13 9:06am

So, what does msg come back as?

sayed farhan 30-Jan-13 9:50am

ryan can we use teamviewr

ZurdoDev 30-Jan-13 9:53am

No, sorry, I'm in the middle of work.

sayed farhan 30-Jan-13 10:02am

okwe have to import webservices.dll and where to write webmethod code in vb.net

ZurdoDev 30-Jan-13 10:21am

Your code should be something like this

' Visual Basic
<system.web.script.services.scriptservice>
Public Class Service1
Inherits System.Web.Services.WebService
<system.web.services.webmethod()> _
Public Function GetBigData() As DataSet
'implementation code
End Function
End Class

Notice the first line, right about the name of the class. This tells the webmethod that it can be called from script.

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Sheikh Muhammad Haris · Answer 1 · 2013-01-30T15:49:00

Solution 1

Make sure that you have properly used ScriptManager tags inside forms tag in your aspx code.

Posted 30-Jan-13 15:49pm

Sheikh Muhammad Haris