Asp.net two methods to prevent Page scrolling [Reference]

I,
Private void RetainScrollPosition ()
{
StringBuilder saveScrollPosition = new StringBuilder ();
StringBuilder setScrollPosition = new StringBuilder ();

RegisterHiddenField ("_ SCROLLPOS", "0 ");

SaveScrollPosition. Append ("<script language = 'javascript '> ");
SaveScrollPosition. Append ("function saveScrollPosition (){");
SaveScrollPosition. Append ("document. forms [0]. _ SCROLLPOS. value = MyBody. scrollTop ;");
SaveScrollPosition. Append ("}");
SaveScrollPosition. Append ("MyBody. onscroll = saveScrollPosition ;");
SaveScrollPosition. Append ("</script> ");

RegisterStartupScript ("saveScroll", saveScrollPosition. ToString ());

If (Page. IsPostBack)
{
SetScrollPosition. Append ("<script language = 'javascript '> ");
SetScrollPosition. Append ("function setScrollPosition (){");
SetScrollPosition. Append ("MyBody. scrollTop =" + Request ["_ SCROLLPOS"] + ";");
SetScrollPosition. Append ("}");
SetScrollPosition. Append ("MyBody. onload = setScrollPosition ;");
SetScrollPosition. Append ("</script> ");

RegisterStartupScript ("setScroll", setScrollPosition. ToString ());
}
}

Execute RetainScrollPosition () during page_load ()
In the page html, add id = MyBody to the body. As long as the inherited page is implemented
(I forgot to cite others. Thank you here)

II,

Add an object control at the location you need to refresh the page and locate the control location. The scrollIntoView method is used.

Public void ScrollToObject (string str_Ctl_Name, Page page)
{
If (! Page. IsStartupScriptRegistered ("scrolobject "))
{
Page. registerStartupScript ("msgscrolobject", "<script> document. forms (0 ). "+ str_Ctl_Name + ". scrollIntoView (); document. forms (0 ). "+ str_Ctl_Name + ". focus (); </script> ");
}
}

Note: ScrollToObject: Method Name
Str_Ctl_Name: Control name
Example: ScrollToObject (Button1, Page );