unable to access javascript variable after registering Block

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.aspx File code to call DDLSubOrdinate_change web method of page.

JavaScript

PageMethods.DDLSubOrdinate_change(vs_HasSubordinatesRoute, nPositionNo, OnSuccess, OnFail);
function OnSuccess(result) {
  v = STP_dist[0]
}

Web Method,:

VB

<WebMethod()> _
                  <System.Web.Script.Services.ScriptMethod()> _
Public Shared Function DDLSubOrdinate_change(ByVal vs_HasSubordinatesRoute As String, ByVal        nPositionNo As String) As String
       Dim wstr As String
       ........................
       ........................
       ........................

       Json_STP = getJson4Table(ds.Tables(0).DefaultView.ToTable, True)
       Json_STP = " var STP=[" + Json_STP + "]" + ";"

       Json_STP_dist = getJson4Table(ds.Tables(0).DefaultView.ToTable(True, StrColumn), True)
       Json_STP_dist = " var STP_dist=[" + Json_STP_dist + "]" + ";"
       Json_STP = Json_STP + vbCrLf + Json_STP_dist
                        
       ScriptManager.RegisterClientScriptBlock(Me, Me.GetType(), "jstr_STP", Json_STP, True)

Return ""

but after onSuccess of pageMethod i am unable to access variable "STP_dist"
it showing undefined..
please help me...

Posted 13-Feb-14 20:09pm

7045Jeegnesh

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Comments

Sampath Lokuge 14-Feb-14 2:51am

Where you declare it ? Can you put whole code snippet ?

1 solution

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Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) · Accepted Answer · 2014-02-14T18:10:00

Solution 1

JavaScript

function OnSuccess(result) {
     v = STP_dist[0]
}

You need to get returned data from result argument of function, not from STP_dist[0], which seems undefined here.

Posted 14-Feb-14 18:10pm

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ)

Comments

7045Jeegnesh 20-Feb-14 2:13am

yes i did that.......and it's work
if (result != null && result != "") {
STP = eval(result)[0].STP;
STP_dist = eval(result)[1].STP_dist;
}

but tell me one thing, why pagemethods not allowed any registerscript?

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) 20-Feb-14 4:28am

PageMethods are for doing some operation and returning some value to the caller.
Please explore more on it in Google.