[AccessD] A2K Reference the dot column property in a query

On 5 Sep 2003 at 7:48, Rocky Smolin - Beach Access S wrote:

> Must have missed that thread Arthur.  What are static functions?
> 


Functions which retain the value of their variables between calls. 
Something like:

STATIC FUNCTION StartDate(OPTIONAL dteStartDate as Date) as Date
	Local dteStore as Date
	IF NOT ISNULLl(dteStartDate) Then
     		dteStore = dteStartDate
	END IF   
	StartDate = dteStore
End FUNCTION

Every time you call the function with a date parameter, it sets its 
value. Every time you call it without a parameter, it returns the 
last value set.  

You can now  you user select a start date on a "pick form" somewhere. 
When they have picked it, set the value of  Startdate() with 
something like dteTemp = StartDate(txtStartDate)  

Now you can use "=StartDate()" in reports, queries, form filters etc 
anywhere you like. It will return the selected value  until the user 
goes back to the pick form and changes it.  


 
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