How to design a GUI which has n number of component are changing?

Hello,
I have a problem in designing a GUI. The Gui contain number of components which being changing on the frame depending on the action.
For example:
Initial frame contain only the combobox which has few data( let we take tennis, cricket, football..)
If the user select one of this then the frame should add few more component like
cricket should add 24 combobox for selection of the team and the member and the fields to show the information of the individual details.
tennis: should remove the cricket related component and replaced by tennis related component. ....
One more thing is
If we select one of the content of the combo box then it should display the one more combo box.
If we select one from this combo box then it should display one more this should be continue till the user select the end in the combo box.
Please help in this part to complete the designing of the Gui. I want whether we can do add number of components dynamically in a single frame? If possible how?
Thanks in advance
Regards,
kakolia

Post Author: geckos
CA Forum: General
You need to find a commonality between the tables. The date fields contain a "month" value that you could use. I don't know what the database source is but here is a suggestion in "psuedo SQL" to get you started. The NVL is an Oracle function that replaces a NULL instance with something, in this case a '0'. The "month" function extracts out the numeric month. Without modifying your database structure to add the common keys, you will have to create a "custom command" query when creating your datasource based on a query similar to the one below.
SELECT a.Mo, (a.A - b.B) BalFROM ( SELECT NVL(SUM(Money),0) A, Month(Date) Mo FROM Sale GROUP BY Month(Date) ) a, ( SELECT NVL(SUM(Money),0) B, Month(Date) Mo FROM Buy GROUP BY Month(Date) ) bWHERE a.Mo = b.Mo

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