exponential format

[pererm]

When the function DoDataxchange() asign a value to an edit control, an this value is nearly Zero, it could write a infinitesimal value in exponential format, like this -4.2678911233e-19.
How can I avoid this? I want that write 0.0 or at least 0.00000000000000426.

Is necessary do it for any edit control, or can i configure all the application, and this Works in every edit control?


Can someone help me, Thanks a .

PERE

[OReubens]

Nothing you can do directly.
DDX_Text for a double uses a "%15.g" formatstring, and you can't influence that. It'll automatically figure out whether to use decimal or exponent notation.

If you aren't happy with the way the default DDX_Text() works, you'll have to implement your own DDX function that does things the way you want them to.

[Alex F]

Can you use float data member instead of double? Otherwise, just use CString type and write formatting/validation code manually.