How to make the scroll bar of the ListBox remain the last position after the page is postback refreshed

How to make the scroll bar of the ListBox remain the last position after the page is postback refreshed

http://anforen.5d6d.com/

http://four-corner.appspot.com/

You can use JavaScript to handle:

<script language= "JavaScript" >

function AutoScroll ()

{

var list = document.getElementById ("ListBox1");

if (!list | |!list.multiple | | | list.length = 0) return;

var lastitem = list[list.length-1];

if (lastitem.selected)

{

Lastitem.selected = true;

Return

}

Else

{

Lastitem.selected = true;

lastitem.selected = false;

}

for (Var i=0 i < list.length; i++)

{

if (list[i].selected)//or list.selected?

{

List[i].selected = true;

Return

}

}

}

</script>

Add in Page_Load:

protected void Page_Load (object sender, EventArgs e)

{

Page.registerstartupscript ("MyScript", "<script language=javascript defer= ' true ' > AutoScroll () </script > ");

}

This allows the postback to be implemented, and the vertical scroll bar of the listbox is still in place before the page is sent back.

ref:http://codingforums.com/showthread.php?t=80998