title: JS Error:Cannot call method of null
body: <p>I have the following method in a js file in ASP.Net web project. This method is giving the error 
  Cannot call method 'split' of null</p>
  
  <pre><code> function loadUser_InfoCallBack(res)
      {
      var ret=res.value;
      var senderGUID = ret.split(';')[0];
      var senderText = ret.split(';')[1];
  
      if(senderGUID.Length&gt;0)
      {
      $('hiddenSender.value')=senderGUID;
      $('hiddenText.value')=senderText;
      }
  
  }
  </code></pre>
  
  <p>Can anybody suggest the reasons for this error..</p>
  
  <hr>
  
  <p>where the code for the getOwnerInfo method is below</p>
  
  <pre><code>[AjaxPro.AjaxMethod(AjaxPro.HttpSessionStateRequirement.ReadWrite)]
          public string getOwnerInfo()
          {
              string strReturn = ";";
  
              if (Session["User_GUID"] != null)
              {
                  string strUserGUID = Session["User_GUID"].ToString();
  
                  string strIndGUID = "";
                  string strIndName = "";
  
                  //Initialize Connection String
                  cns = DAL360.Common.getConnection(HttpContext.Current.Session["Server"].ToString(), HttpContext.Current.Session["Database"].ToString());
  
                  DAL360.std_UserRepositoryArtifacts.std_UserRepository userRep = new DAL360.std_UserRepositoryArtifacts.std_UserRepository(cns);
                  std_User user = userRep.Getstd_UserByusr_GUID(new Guid(strUserGUID));
  
  
                  DAL360.std_IndividualRepositoryArtifacts.std_IndividualRepository indRep = new DAL360.std_IndividualRepositoryArtifacts.std_IndividualRepository(cns);
                  std_Individual ind = indRep.Getstd_IndividualByind_GUID(new Guid(user.usr_ind_GUID.ToString()));
  
                  if (ind != null)
                  {
                      strIndGUID = ind.ind_GUID.ToString(); 
  
                      strIndName = ind.ind_Prefix + " " + ind.ind_FirstName + " " + ind.ind_MiddleName + " " + ind.ind_LastName;
  
                      DAL360.std_IndividualAddressRepositoryArtifacts.std_IndividualAddressRepository iadRep = new DAL360.std_IndividualAddressRepositoryArtifacts.std_IndividualAddressRepository(cns);
                      List&lt;std_IndividualAddress&gt; iadList = iadRep.GetAllFromstd_IndividualAddressByIndGUID(ind.ind_GUID);
  
                      if (iadList != null &amp;&amp; iadList.Count &gt; 0)
                      {
                          std_IndividualAddress iad = iadList[0];
                          strIndName += " (" + iad.iad_City + ", " + iad.iad_State + ")";
                      }
                  }
  
  
                  strReturn = strIndGUID + ";" + strIndName;
  
              }//end if statement
  
  
              return strReturn;
  
          }
  </code></pre>
  
  <p>And this method is in the code behind page of frmHome.aspx page. And I get the error when i try to open the page frmHome.aspx</p>