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Focal Point    Focal Point Forums  Hop To Forum Categories  WebFOCUS/FOCUS Forum on Focal Point     [CLOSED] list boxes in launch page

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[CLOSED] list boxes in launch page
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JohnB
Platinum Member
posted
I have a few questions on list boxes in launch pages

1. How do chained list boxes in launch pages get populated? I know they are the result of WHERE statements in the focexec, but how does WebFOCUS retrieve the values? Does it create a hold file for each list box?

2. When the "ALL" option is used in all 4, the browser chokes. How can we get around this?

3. If you have 4 chained list boxes, how can you use in the focexec the selection from only the 4th list box, rather than having it use all 4 WHERE statements that generated the list boxes?

4. Why are the values of some list boxes sorted and some aren't? Is this based on the segtype?

Thank you,

John

This message has been edited. Last edited by: Kerry,


WF 7.7.03, Windows 7, HTML, Excel, PDF
 
Posts: 225 | Location: San Francisco Bay Area, California | Registered: October 26, 2006Report This Post
Tony A
Expert
posted Hide Post
1. Using an AJAX process to obtain XML output and then using JavaScript to dynamically populate the listbox.

2. I have posted on this before - essentially, use fexes to provide the XML to populate your listbox and use a DEFAULT value that does not exist.

3. By carefully coding it that way.

4. Most likely, however using fexes you can control the XML produced including not only content but order.

T


In FOCUS
since 1986		WebFOCUS Server 8.2.01M, thru 8.2.07 on Windows Svr 2008 R2  
WebFOCUS App Studio 8.2.06 standalone on Windows 10 
 
Posts: 5694 | Location: United Kingdom | Registered: April 08, 2004Report This Post
GinnyJakes
Expert
posted Hide Post
Here is another slant on the questions.

1. When you load the web page, WebFOCUS generates an SQL statement under the covers to retrieve the data for the list boxes. Chained boxes will cause that SQL to contain a WHERE. You can use a focexec to populate the boxes instead of the default.

2. You are probably retrieving too much data. Do a COUNT * on your data with no WHERE clauses to see how many potential rows you are trying to bring back.

3. See Tony's answer. Think Dialogue Manager.

4. See Tony's answer. Using a focexec to populate the dropdown boxes will cure a lot of ailments.


Ginny
---------------------------------
Prod: WF 7.7.01 Dev: WF 7.6.9-11
Admin, MRE,self-service; adapters: Teradata, DB2, Oracle, SQL Server, Essbase, ESRI, FlexEnable, Google
 
Posts: 2723 | Location: Ann Arbor, MI | Registered: April 05, 2006Report This Post
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