Getting object object dialog box

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i am using this function to scroll down the page by clicking keyboard down key and when page is scroll down i am calling one more function to load data, this is working fine but problem is when i close the page i am getting object object dialog box please help.

NOTE: How many times i click on the page so many times object object dialog box will appear.

window.onkeydown = keydown;
       function keydown() {
           window.scrollBy(0, 10);
          if ($(window).scrollTop() == $(document).height() - $(window).height()) {
          CallWebService();
          }
       }

Posted 13-Jun-14 18:52pm

Mohammed_Faisal_Majeed

Updated 13-Jun-14 19:08pm

v2

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Raul Iloc · Accepted Answer · 2014-06-13T19:44:00

You should modify your code, in the way that only when you press some keys (like Up and Down) your scrolling part, like in the next example:

C#

window.onkeydown = keydown;
    function keydown(evt) {
       if (evt != undefined && (evt.keyCode == 38 || evt.keyCode== 40) //Up or Down key
       {
           window.scrollBy(0, 10);
          if ($(window).scrollTop() == $(document).height() - $(window).height()) {
          CallWebService();
          }
        }
}