Dave,
This is the typical mistake when working with dialogs and reading values in a handler.
The values on the controls are not written to the variables assigned to the controls until the dialog has been dismissed.
And the dialog has not been dismissed when you are within a handle of the same dialog.
To read values from a "running" dialog, you should use the ReadControlValue() function:
SUB Mission0EllipseOKButtonCalling
Print "Ok button pressed from Ellipse dialog"
s_EllipseCentreLat = ReadControlValue( Edit1ID)
'where Edit1ID is the ID of the control to read the value from
Print Time(24) & " " & s_EllipseCentreLat
END SUB
HTH,
Peter Horsbøll Møller
GIS Developer, MTM
Geographical Information & IT
COWI A/S
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DK-5260 Odense S.
Denmark
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-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of [EMAIL PROTECTED]
Sent: Wednesday, July 26, 2006 8:29 AM
To: MapInfo-L@lists.directionsmag.com
Subject: [MI-L] Dialog box variables not populating
I have a very strange problem:
First I have a global definition:
Global s_EllipseCentreLat AS STRING
I have a menu option which calls a dialog box. The dialog box has this code:
DIALOG
POSITION 491, 359
WIDTH 165 HEIGHT 153
TITLE "Create Ellipse"
CONTROL EditText
POSITION 73, 27
WIDTH 80 HEIGHT 12
ID Edit1ID
Value "0.001"
INTO s_EllipseCentreLat
CONTROL OKButton
POSITION 47, 130
WIDTH 38 HEIGHT 14
'ID OK1ID
TITLE "OK"
CALLING Mission0EllipseOKButtonCalling
So, it's basically edit test box & an OK button. The handler looks like this:
SUB Mission0EllipseOKButtonCalling
Print "Ok button pressed from Ellipse dialog"
Print Time(24) & " " & s_EllipseCentreLat
END SUB
The really strange thing is that when I run the dialog & press Ok, I get the correct time printed out, with no variable value.
When I run the dialog the second time & press Ok, I get the correct time followed by
0.001 which was the original value! It seems the variable is not populated when the Ok button is pressed, but at some stage after that. If I change the value of the variable I don't see that new value after pressing the Ok button, but instead see it the NEXT time I press the Ok button - it seems to be lagging behind.
Anyone know why this happens? I've never had any trouble like this before and am mystified as to what is causing it.
(MapInfo 8.0 & MapBasic 8.0)
Thanks,
Dave
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