Hi Experts,

Im getting error , while creating the record, there is text box called street , in that if i give some four number it will give you street number , when i was trying to give its throwing error called" attempt to de reference a null object". could you anyone solve it please.

vf page: 


<apex:page standardController="WPD_Reinstatement__c" id="page"> <script src="/soap/ajax/15.0/connection.js" type="text/javascript"></script> <script src="/soap/ajax/15.0/apex.js" type="text/javascript"></script> <script type="text/javascript"> <!--CH07 --> window.onload = function(e){ var notifType = document.getElementById('page:FrmWork:Pb1:Pb2:NotificationType'); var text = notifType.options[notifType.selectedIndex].text showPermitCondition(text); } function showPermitCondition(notificationType){ var panel = document.getElementById('conditionalPanel'); if(notificationType == 'Permit'){ panel.style.display =''; } else{ panel.style.display = 'none'; } } <!--CH07 --> function openpopup() { var URL; var usrn, street,locality,town,county,roadclass; usrn = document.getElementById('page:FrmWork:Pb1:Pb2:USRN1').value; street = document.getElementById('page:FrmWork:Pb1:Pb2:street1').value; locality = document.getElementById('page:FrmWork:Pb1:Pb2:locality1').value; town = document.getElementById('page:FrmWork:Pb1:Pb2:town1').value; county = document.getElementById('page:FrmWork:Pb1:Pb2:county1').value; eastStart = document.getElementById('page:FrmWork:Pb1:Pb3:ES').value; eastEnd = document.getElementById('page:FrmWork:Pb1:Pb3:EE').value; northStart = document.getElementById('page:FrmWork:Pb1:Pb3:NS').value; northEnd = document.getElementById('page:FrmWork:Pb1:Pb3:NE').value; //roadclass = document.getElementById('apexPage:frmSch4:pb:pbs:section29:tabIndex18').value; if(usrn=='' && street=='' && locality==''&& town==''&& county=='') { URL = '{!URLFOR($Page.Wpd_Gazetteer_Search)}'; } else { URL = '{!URLFOR($Page.Wpd_Gazetteer_Search)}' + '?U=' + usrn + '&S=' + street + '&L=' + locality + '&T=' + town + '&C=' + county + '&E=' + eastStart +'&Es=' + eastEnd + '&Ee=' + northStart +'&Em=' + northEnd ; } var GazSearchWin= window.open(URL,'GSearch','height=500,width=800,status=no,scrollbars=yes,resizable=yes'); GazSearchWin.opener = self; //GazSearchWin.focus(); return false; } function timeValidation(){ //Time Fault Received // var tmRec = document.getElementById('j_id0:FrmWork:Pb1:Pb2:j_id41').value; //CH06 var tmRec = document.getElementById('page:FrmWork:Pb1:Pb2:TimeFaultReceived').value; var valueArr = tmRec.split('.'); var vmnt=valueArr[1]; if(vmnt<10 && vmnt.length<2) vmnt=vmnt+'0'; if(valueArr[0]>23){ alert('Time Fault Received: Hour value can not be greater than 23'); return false; } if(vmnt>59){ alert('Time Fault Received: Minute value can not be greater than 59'); return false; } //Time of Arrival on Fault // var tmRec1 = document.getElementById('j_id0:FrmWork:Pb1:Pb2:j_id43').value; CH06 var tmRec1 = document.getElementById('page:FrmWork:Pb1:Pb2:Timeofarrival').value; var valueArr1 = tmRec1.split('.'); var vmnt1=valueArr1[1]; if(vmnt1<10 && vmnt1.length<2) vmnt1=vmnt1+'0'; if(valueArr1[0]>23){ alert('Time of Arrival on Fault: Hour value can not be greater than 23'); return false; } if(vmnt1>59){ alert('Time of Arrival on Fault: Minute value can not be greater than 59'); return false; } return true; } </script> <apex:sectionHeader title="WPD Work" subtitle="Edit WPD Work"/> <!-- CH08 --> <apex:form id="FrmWork"> <input type="hidden" id="USRN" name="USRN" value = "page:FrmWork:Pb1:Pb2:USRN1"/> <input type="hidden" id="Street" name="Street" value = "page:FrmWork:Pb1:Pb2:street1"/> <input type="hidden" id="Locality" name="Locality" value = "page:FrmWork:Pb1:Pb2:locality1"/> <input type="hidden" id="Town" name="Town" value = "page:FrmWork:Pb1:Pb2:town1"/> <input type="hidden" id="County" name="County" value = "page:FrmWork:Pb1:Pb2:county1"/> <input type="hidden" id="eastStart" name="eastStart" value = "page:FrmWork:Pb1:Pb3:ES"/> <input type="hidden" id="eastEnd" name="eastEnd" value = "page:FrmWork:Pb1:Pb3:EE"/> <input type="hidden" id="northStart" name="northStart" value = "page:FrmWork:Pb1:Pb3:NS"/> <input type="hidden" id="northEnd" name="northEnd" value = "page:FrmWork:Pb1:Pb3:NE"/> <input type="hidden" id="roadclass" name="RoadClass" value = "page:FrmWork:Pb1:Pb2:roadclass"/> <apex:pageBlock id="Pb1" title="WPD Work"> <apex:pageMessages id="pgMsg"></apex:pageMessages> <!--CH08.Start --> <apex:panelgrid columns="3" cellpadding="10" > <apex:outputLabel ><b>Search for Street / Town / Location </b> </apex:outputLabel> <apex:inputText style="height:19px" size="60" id="gazSearch"> <c:gazetteerAutoComplete autocomplete_textbox="{!$Component.gazSearch}" localityTxtBoxId="page:FrmWork:Pb1:Pb2:locality1" streetTxtBoxId="page:FrmWork:Pb1:Pb2:street1" townTxtBoxId="page:FrmWork:Pb1:Pb2:town1" usrnTxtBoxId="page:FrmWork:Pb1:Pb2:USRN1" countyTxtBoxId="page:FrmWork:Pb1:Pb2:county1" roadClassTxtBoxId="page:FrmWork:Pb1:Pb2:roadclass" e1TxtBoxId="page:FrmWork:Pb1:Pb3:ES" n1TxtBoxId="page:FrmWork:Pb1:Pb3:NS" e2TxtBoxId="page:FrmWork:Pb1:Pb3:EE" n2TxtBoxId="page:FrmWork:Pb1:Pb3:NE" /> </apex:inputText> <apex:commandButton style="height:25px" onclick="opendetails();return false;" value="Street Details" /> </apex:panelgrid> <!--CH08.End --> <apex:pageBlockSection title="Status"> <apex:inputField value="{!WPD_Reinstatement__c.Work_Status__c}" /> <apex:inputField value="{!WPD_Reinstatement__c.Status__c}" /> <apex:inputField value="{!WPD_Reinstatement__c.Original_Notice__c}" /> <apex:inputField value="{!WPD_Reinstatement__c.Cancelled__c}" /> <apex:inputField value="{!WPD_Reinstatement__c.WPD_Projects__c}" /> <apex:inputField value="{!WPD_Reinstatement__c.Abandoned__c}" /> <apex:inputField value="{!WPD_Reinstatement__c.In_Progress_Report__c}" /> <apex:inputField value="{!WPD_Reinstatement__c.Abandoned_Reason__c}" /> <apex:inputField value="{!WPD_Reinstatement__c.Closure_Report__c}" /> <apex:inputField value="{!WPD_Reinstatement__c.WPD_Work_Type__c}" required="true" /> <!-- CH12 --> <apex:inputHidden id="hdnIsWPDWorkClone" value="{!WPD_Reinstatement__c.WPD_Work_Clone__c}"/> <!-- CH12--> <apex:inputField value="{!WPD_Reinstatement__c.MRS_Certified_ValueFormula__c}" /> <!-- CH05 --> </apex:pageBlockSection> <apex:pageBlockSection title="Description" id="Pb2"> <apex:inputField value="{!WPD_Reinstatement__c.Works_Description__c}" required="true" /> <apex:inputField value="{!WPD_Reinstatement__c.Notice_Number__c}" required="true"/> <apex:inputField id="TimeFaultReceived" value="{!WPD_Reinstatement__c.Time_Fault_Received__c}" required="false"/> <!-- CH02.New & CH06(id added) --> <apex:inputField value="{!WPD_Reinstatement__c.Notice_Type__c}" required="true" /> <apex:inputField id="Timeofarrival" value="{!WPD_Reinstatement__c.Time_of_Arrival_on_Fault__c}" required="false"/> <!-- CH02.New & CH06(Id Added) --> <apex:inputField id="NotificationType" value="{!WPD_Reinstatement__c.Notification_Type__c}" required="true" onchange="showPermitCondition(this.value)"/> <!-- CH07 # SR_ISIS_WPD_066 --> <apex:outputText ></apex:outputText><!--CH11 ##--> <apex:inputField value="{!WPD_Reinstatement__c.Excavation__c}"/> <!--CH11 ##--> <apex:inputField value="{!WPD_Reinstatement__c.Location__c}" required="true"/> <!--CH.03 Start - Rearrange the fields after new field added in layout--> <apex:inputField id="USRN1" value="{!WPD_Reinstatement__c.USRN__c}" /> <!-- CH04 # SR_ISIS_WPD_051 --> <apex:inputField id="street1" value="{!WPD_Reinstatement__c.Street__c}" required="true"/> <apex:inputField value="{!WPD_Reinstatement__c.Granted_Permit_Number__c}" /> <!-- CH04 # SR_ISIS_WPD_051 --> <apex:inputField id="locality1" value="{!WPD_Reinstatement__c.Locality__c}" /> <apex:inputField id="roadclass" value="{!WPD_Reinstatement__c.Road_Class__c}" /> <apex:inputField id="town1" value="{!WPD_Reinstatement__c.Town__c}" required="true"/> <apex:inputField value="{!WPD_Reinstatement__c.Traffic_Sensitive__c}" /> <apex:inputField value="{!WPD_Reinstatement__c.Post_Code__c}" /> <apex:inputField value="{!WPD_Reinstatement__c.Traffic_lights_on_site__c}" /> <!--CH.01 Start --> <!--<apex:inputField id="roadclass" value="{!WPD_Reinstatement__c.Road_Class_Text__c}" />--> <!--CH.01 End --> <apex:inputField id="county1" value="{!WPD_Reinstatement__c.County__c}" /> <apex:inputField value="{!WPD_Reinstatement__c.Spoil_on_site__c}" /> <apex:inputField value="{!WPD_Reinstatement__c.Barriers_on_site__c}" /> <!--CH.03 End --> </apex:pageBlockSection> <apex:pageBlockSection title="Grid References" id="Pb3"> <apex:inputField id="ES" value="{!WPD_Reinstatement__c.Eastings_Start__c}" required="true" /> <apex:inputField id="EE" value="{!WPD_Reinstatement__c.Eastings_End__c}" required="true"/> <apex:inputField id="NS" value="{!WPD_Reinstatement__c.Northings_Start__c}" required="true"/> <apex:inputField id="NE" value="{!WPD_Reinstatement__c.Northings_End__c}" required="true"/> </apex:pageBlockSection> <apex:pageBlockSection title="Early Start Information" id="Pb5"> <apex:inputField value="{!WPD_Reinstatement__c.HA_Contact_Name__c}" /> <apex:inputField value="{!WPD_Reinstatement__c.Reason__c}" /> <apex:inputField value="{!WPD_Reinstatement__c.Agreement_DateTime__c}" /> <apex:inputField value="{!WPD_Reinstatement__c.Pin_No__c}" /> </apex:pageBlockSection> <apex:pageBlockSection title="Works Details" id="Pb4"> <apex:inputField value="{!WPD_Reinstatement__c.Estimated_Start__c}" required="true" /> <apex:inputField value="{!WPD_Reinstatement__c.Estimated_End__c}" required="true"/> <apex:inputField value="{!WPD_Reinstatement__c.Works_Start_Date__c}" /> <apex:inputField value="{!WPD_Reinstatement__c.Works_End_Date__c}" /> <apex:inputField value="{!WPD_Reinstatement__c.Actual_Start__c}" /> <apex:inputField value="{!WPD_Reinstatement__c.Date_to_Reinstators__c}" /> <apex:inputField value="{!WPD_Reinstatement__c.Actual_Start_Time__c}" /> <!-- CH09 --> <apex:inputField value="{!WPD_Reinstatement__c.Team_Allocated__c}" /> <apex:inputField value="{!WPD_Reinstatement__c.Notice_Close__c}" /> <apex:inputField value="{!WPD_Reinstatement__c.Planned_Joint_Date__c}" required="true"/> <!-- CH13.Starts --> <apex:inputField value="{!WPD_Reinstatement__c.Part_Reg__c}" /> <!-- CH13.Ends --> <apex:inputField value="{!WPD_Reinstatement__c.Actual_Joint_Date__c}" /> <apex:inputField value="{!WPD_Reinstatement__c.Registration__c}" /> <apex:inputField value="{!WPD_Reinstatement__c.Jointing_Ref__c}" /> <apex:inputField value="{!WPD_Reinstatement__c.Site_Clear__c}" /> <apex:inputField value="{!WPD_Reinstatement__c.Comments__c}" /> </apex:pageBlockSection> <!-- CH07 Starts --> <div id="conditionalPanel" style="display:none;"> <apex:pageBlockSection title="WPD Permit Conditions" id="pbPC"> <apex:inputField value="{!WPD_Reinstatement__c.Time_Constraints__c}" /> <apex:inputField value="{!WPD_Reinstatement__c.Date_Constraints__c}" /> <apex:inputField value="{!WPD_Reinstatement__c.Out_Of_Hours_Work__c}" /> <apex:inputField value="{!WPD_Reinstatement__c.Material_And_Plant_Storage__c}" /> <apex:inputField value="{!WPD_Reinstatement__c.Road_Occupation_Dimensions__c}" /> <apex:inputField value="{!WPD_Reinstatement__c.Traffic_Space_Dimensions__c}" /> <apex:inputField value="{!WPD_Reinstatement__c.Road_Closure__c}" /> <apex:inputField value="{!WPD_Reinstatement__c.Light_Signals_And_Shuttle_Working__c}" /> <apex:inputField value="{!WPD_Reinstatement__c.Traffic_Management_Changes__c}" /> <apex:inputField value="{!WPD_Reinstatement__c.Work_Methodology__c}" /> <apex:inputField value="{!WPD_Reinstatement__c.Consultation_And_Publicity__c}" /> <apex:inputField value="{!WPD_Reinstatement__c.Environmental__c}" /> <apex:inputField value="{!WPD_Reinstatement__c.Local__c}" /> <apex:inputField value="{!WPD_Reinstatement__c.No_Conditions_Supplied__c}" /> <apex:inputField value="{!WPD_Reinstatement__c.Condition_Text__c}" /> </apex:pageBlockSection> </div> <!-- CH07 Ends --> <apex:pageBlockButtons > <apex:commandButton action="{!save}" value="Save" onclick="return timeValidation()"/> <!-- CH02.Edit --> <apex:commandButton action="{!cancel}" value="Cancel" /> <!-- <apex:commandButton value="Street Gazetteer" id="tabIndex36" onclick="return openpopup()" rendered="{!IF($Profile.Name=='WPD Sub Reinstator',false,true)}"/> --> <!-- CH08 --> </apex:pageBlockButtons> </apex:pageBlock> </apex:form> <script type="text/javascript"> // CH12 Starts if(document.getElementById('page:FrmWork:Pb1:j_id38:hdnIsWPDWorkClone').value == 'true'){ document.getElementById('page:FrmWork:Pb1:j_id38:j_id48').disabled = true; } // CH12 Ends </script> </apex:page>

class: 

global class gazetteerAutoComplete
{
   /**
   findStreets(String searchText) -  This is a REMOTEACTION method that it called directly from the Page through javascript
                                     It fetches a combination of street,town,locality and county based on the search text.
   **/
   @RemoteAction
   global static String[] findStreets(String searchText)
   {
       return returnResults(callService(searchText));
   }
   //CH01.Start
   /**
   returnResults(Gazetteer_DotNet_Services.GazetteerSearchResults  webServiceResponse)
   This method accepts the result set as an argument and returns the same on the page for selection by the user
   **/
   
   public static List<String> returnResults(Gazetteer_DotNet_Services.GazetteerSearchResults  webServiceResponse)
   {
       List<String> lstStreetNames = new List<String>();
       Gazetteer_DotNet_Services.GazetteerSearchResult[] resultSet;
       resultSet = webServiceResponse.GazetteerSearchResultsRow.GazetteerSearchResult;
       if(resultSet!=null)
           for (Gazetteer_DotNet_Services.GazetteerSearchResult resultRow: resultSet)
               lstStreetNames.add(resultRow.StreetDescriptor);
       return lstStreetNames;
   }
   /**
   callService(String searchText) -  This method calls the webservice with the search text as an argument. The webservice is 
   hosted by a CAST IRON server which in turns calls a Stored Procedure to fetch the results from the GAZETTEER DATABASE
   **/
   public static Gazetteer_DotNet_Services.GazetteerSearchResults callService(String searchText)
   {
       try
       {
           //Validates the ORG ID as well
           //return new gazetteerDataWSDL.GazetteerSearchPort().GazetteerSearch(searchText,UserInfo.getOrganizationId().substring(0,15));
           //Hard coded the organization id as CSB refresed, and once paul come from holidy need to update in CastIron
           //return new gazetteerDataWSDL.GazetteerSearchPort().GazetteerSearch(searchText,UserInfo.getOrganizationId().substring(0,15));  
           
           String samp = System.Label.Organization_ID; 
           return new Gazetteer_DotNet_Services.GazetterSoap().GazetteerSearch(searchText, samp);   
       
       }
       catch(Exception ex)
       {
           return new Gazetteer_DotNet_Services.GazetteerSearchResults();
       }
       //CH01.End
   }
}