when i was doing client side paging and changed the page size in the radgrid at runtime, it is throwing error at
var link = item.get_cell(“Project”).getElementsByTagName(“a”)[0]; as
Uncaught TypeError: Cannot set property ‘innerHTML’ of undefined.

I totally have 3 rows to be binded in the grid. If i set pagesize in the aspx as 10 and then change the pagesize at run time to 20 it works.

But if i set the pagesize in aspx as 1 and later change the pagesize in the runtime to 10 it’s not working.
 

ASPX:

<telerik:RadGrid ID="RadGrid1" Skin="Office2007" runat="server"
   GridLines="None" AllowPaging="true" AllowSorting="true" AutoGenerateColumns="false" PageSize="1">
   <ClientSettings>
       <ClientEvents OnCommand="RadGrid1_Command" OnRowDataBound="OpenSurveys_OnRowDataBound" />
   </ClientSettings>
   <MasterTableView>
     <Columns>
       <telerik:GridBoundColumn DataField="ProjectID"  HeaderText="ProjectID" Visible="False" />
       <telerik:GridBoundColumn DataField="SurveyPriority" HeaderText ="Priority" DataType="System.String"/>
       <telerik:GridHyperLinkColumn DataTextField="SurveyName" DataNavigateUrlFields="SurveyName"
                        UniqueName="Name" HeaderText="Name" ItemStyle-Font-Underline="true" />
       <telerik:GridBoundColumn DataField="SurveyCompletionStatusForPanelist" HeaderText="Completion Status" DataType="System.String" />
       <telerik:GridBoundColumn DataField="SurveyClosingDate" HeaderText="Due Date"  DataFormatString="{0:d}"/>
       <telerik:GridBoundColumn DataField="AdditionalInfo" HeaderText ="Additional Information"  />
     </Columns>
     </MasterTableView>
     <PagerStyle AlwaysVisible="true" />
    </telerik:RadGrid>

CS:

function OpenSurveys_OnRowDataBound(sender, args)
        {   
            console.log("hyperlink");
            // manually set the hyperlink's title
            var item = args.get_item();
            var dataItem = args.get_dataItem();
            var link = item.get_cell("Name").getElementsByTagName("a")[0];   
            console.log("item,dataItem,link",item,dataItem,link);
          
            link.innerHTML = dataItem.SurveyName;
            link.href = dataItem.SurveyURL;
           
        }

function pageLoad(sender, args)
    {
      document.getElementById("<%=RadGrid1.ClientID%>").style.display="block";
      document.getElementById("<%=RadGrid2.ClientID%>").style.display="none"; 
      OpenSurveysTableView = $find("<%= RadGrid1.ClientID %>").get_masterTableView();
      $find("<%= RadAjaxLoadingPanel1.ClientID %>").show("<%= RadGrid1.ClientID %>");
      commandName = "Load";
      executeMethod("/WebServices/SurveyDetails.asmx", "OpenSurveys", getOpenSurveysRequestData(OpenSurveysTableView), updateOpenSurveyGrid, updateFailed);
    }
    function RadGrid1_Command(sender, args)
    {
      console.log("RadGrid1_Command");     
      args.set_cancel(true);
      commandName = args.get_commandName();
      console.log("commandName",commandName);
      $find("<%= RadAjaxLoadingPanel1.ClientID %>").show("<%= RadGrid1.ClientID %>");
      executeMethod("/WebServices/SurveyDetails.asmx", "OpenSurveys", getOpenSurveysRequestData(OpenSurveysTableView), updateOpenSurveyGrid, updateFailed);
    }
function updateOpenSurveyGrid(result)
    {
       //alert(result);
     
       $find("<%= RadAjaxLoadingPanel1.ClientID %>").hide("<%= RadGrid1.ClientID %>");
       console.log("updateOpenSurveyGrid", result);
       OpenSurveysTableView.set_dataSource(result);
       OpenSurveysTableView.dataBind();
      
       if (commandName == "PageSize" || commandName == "Load" || commandName == "Page") {
       console.log("paging");
             executeMethod("/WebServices/SurveyDetails.asmx", "GetOpenSurveyCount", "{}", updateOpenSurveyVirtualItemCount);
        }
    }
 function updateOpenSurveyVirtualItemCount(result)
    {
      OpenSurveysTableView.set_virtualItemCount(result);
    }
 function getOpenSurveysRequestData(OpenSurveysTableView)
    {
      console.log("getOpenSurveysRequestData", OpenSurveysTableView)
      var openpageSize = OpenSurveysTableView.get_pageSize();
      var opencurrentPageIndex = OpenSurveysTableView.get_currentPageIndex();
      var openstartIndex = openpageSize * opencurrentPageIndex;
      //console.log("openpageSize,opencurrentPageIndex,openstartIndex,OpenSurveysTableView.get_pageSize()",openpageSize,opencurrentPageIndex,openstartIndex,OpenSurveysTableView.get_pageSize())
      return JSON.stringify({
      "startIndex": openstartIndex,
      "maximumRows": OpenSurveysTableView.get_pageSize(),
      "sortExpression": '',
      "filterExpression": ''
       });
      
    }
 function executeMethod(location, methodName, methodArguments, onSuccess, onFail)
    {
      //console.log("executeMethod", location, methodName, methodArguments, onSuccess, onFail);
      $.ajax({
      type: "POST",
      url: location + "/" + methodName,
      data: methodArguments,
      contentType: "application/json; charset=utf-8",
      dataType: "json",
      success: onSuccess,
      fail: onFail
      });
    }