Server method failed if more no of records

[muthukumaran08]

I m calling webmethod (BindEPASCode) in aspx.cs page through Pagemethods in javascript. I am returning BindEPASCode as string if the return below 2500, it is populating properly, if it takes more 2700 i m getting 'Server method Bind State failed' error.

Below is my code...

function callwebmethodTo pic()
{
var topic = document.getEle mentById(GetJSP roperty('ddlTop ic')).value;
PageMethods.Bin dEPASCode(topic , OnSucceededEpas Code, OnFailedEpasCod e);
}
function OnSucceededEpas Code(result) {
var splitEpas = result.split('# ');
var tableRef = document.getEle mentById(GetJSP roperty('rblEpa s'));
if (tableRef != null) {
var chkboxlst = tableRef.getEle mentsByTagName( "input");
for (i = 0; i < chkboxlst.lengt h; i++) {
chkboxlst[i].parentNode.par entNode.parentN ode.removeChild (chkboxlst[i].parentNode.par entNode);
}
for (summaryindex = 0; summaryindex <= splitEpas.lengt h - 2; summaryindex++) {
var arrChild = splitEpas[summaryindex].split('|');
var tableRow = tableRef.insert Row();
var tableCell = tableRow.insert Cell();
var checkBoxRef = document.create Element('input' );
var labelRef = document.create Element('label' );
checkBoxRef.typ e = 'radio';
checkBoxRef.val ue = arrChild[0];
labelRef.innerH TML = arrChild[1];
tableCell.appen dChild(checkBox Ref);
tableCell.appen dChild(labelRef );
}
}
}
function OnFailedEpasCod e(error) {
alert(error.get _message());
}

-------
Webmethod -- aspx.cs
[WebMethod]
public static string BindEPASCode(in t topicId)
{
List<ListEntity > lstEpasCode = GeneralManager. GetEpasCode(top icId);
StringBuilder sbEpasCode = new StringBuilder() ;

lstEpasCode.For Each(delegate(L istEntity objEpasCode)
{
sbEpasCode.Appe nd(objEpasCode. Key + "|" + objEpasCode.Val ue + "#");
});

return sbEpasCode.ToSt ring();
}