How to load data from Data Base while scrolling

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Hi,

I have a page with header and footers. in body area I have a div with <asp:DataList> control. In this control I load the data. Since my data is too huge it takes time to load all the data at the same time. I want to bind first 25 records,as the user scrolls down the records needs to be rendered. When I use $(window).scroll(function() function it gets called when the user comes down to the bottom of the window. I need to call this function as my main div gets crosses. Which means to say when the Footer area starts. How to implement this in ASP.net. Please help me with the sample code.

Posted 15-Nov-13 20:18pm

sacraj

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Sampath Lokuge · Answer 1 · 2013-11-15T21:45:00

You can do that by using jQuery.Check below mentioned links for more info.

$(document).ready(function () {

   $(window).scroll(function () {
       if ($(window).scrollTop() == $(document).height() - $(window).height()) {
           sendData();
       }
   });

   function sendData() {
       $.ajax(
        {
            type: "POST",
            url: "AjaxProcess.aspx/GetData",
            data: "{}",
            contentType: "application/json; charset=utf-8",
            dataType: "json",
            async: "true",
            cache: "false",

            success: function (msg) {
                $("#myDiv").append(msg.d);
            },

            Error: function (x, e) {
                alert("Some error");
            }
        });
   }
});

C#

$(window).scroll(function () {
   if ($(window).scrollTop() == $(document).height() - $(window).height()) {
       sendData();
   }
});

C#

success: function (msg) {
    $("#myDiv").append(msg.d);
},

Load data dynamically on page scroll using jQuery

LOAD DATA WHILE SCROLLING PAGE DOWN WITH JQUERY