To display top 5 Filter values

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I'm facing in ASP.NET application (using .NET 4.0/VS.NET 2010) an issue as described below

Issue Description:
We have a ASPX page (GenericResultSummary.aspx) that contains a left bar and result summary that appears in the right pane (right of the left bar). Now the left bar is itself composed of a User Control names BasicFilter.ascx. This user control displays a list of filters by Category. The left bar looks as below:

Basic Filters

Primary Care Physician
--- Item 1
--- Item 2
--- Item 3
--- Item 4
--- Item 5
+ (more)

Languages Spoken
--- English
--- Spanish
--- Portuguese
--- Chinese (Mandarin)
--- Russian
--- Italian
--- Polish
--- Hebrew
--- French
--- Greek
- (less)

Advance Filters

The requirement is that if the list has more than 5 items then we need to display only top 5 filters and show a more link. On clicking this link all the items in the list will be displayed and a less link will also appear as shown above.

Now we are able to display the items in the list but we aren’t able to get the more/less link displayed. The list gets dynamically binded to a Repeater Control and this is where we are facing issue to display the more/less link. Also on clicking of the more link, the whole page should not be refreshed and we should not be hitting the DB to repopulate the list to show more items. Basically the more link should act as a toggle to display more items and collapse to display top five items when less link is clicked.

Has anybody done something similar before in ASP.NET applications?? Any pointers will be of great help.

Thanks in advance.
Debsoft

Posted 4-Jan-11 23:14pm

debsoft75

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Espen Harlinn · Answer 1 · 2011-01-04T23:41:00

Now we are able to display the items in the list but we aren’t able to get the more/less link displayed. The list gets dynamically binded to a Repeater Control and this is where we are facing issue to display the more/less link.

Add more less link after the repeater

Also on clicking of the more link, the whole page should not be refreshed
Try using an UpdatePanel

and we should not be hitting the DB to repopulate the list to show more items.
Try loading the complete list from DB and save the result in a session variable. Pick the required items from that list

Regards
Espen Harlinn