On Apr 28, 2006, at 10:18 PM, Wade Little wrote:
I have a listbox that I populate with values from a DB. Before I
do each query I get a boolean value which lets me know if the color
of the cell background should be green or red.
The question is what is the easiest way to set the background color
of the cell in the listbox based on boolean value, true is green
and false is red.
I wrote this little switching routine and placed it in a Module (for
general use)
------------
Option (condition as boolean, trueColor as color, optional falseColor
as color = &cFFFFFF) as color
if condition then
return trueColor
else
return falseColor
end if
------------
When you want to change colors (background or otherwise) based on a
boolean condition, try the following (in any graphics routine)
const Green = &c00FF00 'for readability
const Red = &cFF0000
g.foreColor = option ( conditionalExpression, Green , Red )
g.fillRect (0, 0, g.width, g.height)
Put this in your CellBackgroundPaint event, and switch away!
BTW, you can overload this Options method to switch anything based on
a boolean value (strings, integers, or other dataTypes) by declaring
other Options methods each with a different parameter list in the
method declaration....
Sort of a cheap "?(test, true, false)" from the C language.
Consumes a few extra stack calls, but makes your code much more
readable.....
Mark Levinson
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