Question

I need to pass huge amount of data to server without page loading. I have this code:

var GlType = "<%=GlType %>";
var pageUrl = "SelectAccount.aspx?callback=true&AccountList=" +accountList +"&AnalysisDate="+analysisDate+"&GlType="+GlType;
if (window.XMLHttpRequest)
 {
      var xmlRequest = new XMLHttpRequest();
 }
else
 {
      var xmlRequest = new ActiveXObject("Microsoft.XMLHTTP");
 }
xmlRequest.open("POST", pageUrl, true);
xmlRequest.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded'); 
xmlRequest.send(null);

I am have passed using query string its exceeded the maximum Length of query string. Help me on this..

Answer 1

Since you’re already using the POST method, you can pass data in the body.

xmlRequest.send("Field1=abc&Field2=def");

You can retrieve the data on the server, e.g. in ASP.NET:

if (Page.Request.Form["Field1"] == "abc") ...

For GET method you can only use the query string for transferring data.