You have to display a huge no of records in a web form. But to inform the user we need to display something like "100 out of 10000 record loaded", till the complete records get loaded. What are the best way to display this? (either winforms or webforms)

To implement taht concept we need to handle paging concept.
place a grid view,
select properties and mention the pagesize as per requirement.
write the database coding and bind to grid view. place a label
label1.text=(e.Newpageindex+1)+"out of"+Gridview1.PageCount;
Before all you must handle pageindex changing event of gridview