How Do I Condition an Operation to Be Executed Only When the End User Tabs from One Field to Another in a Certain Direction? (Magic xpa 2.x)
Most of the time, the logic associated with a certain field should execute whether the cursor is moving up the screen or down it, since in a Windows environment users tend to click wherever they feel like. However, for more keyboard-centric applications, you can specify whether logic is executed according to the direction of the cursor flow. You do this using the Flow() function.
Flow(<string>) where <string> is:
|
Direction
|
Mode
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N
|
Next
|
Step mode
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F
|
Forward
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Fast mode
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P
|
Previous
|
Step mode
|
R
|
Reverse
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Fast mode
|
S
|
Select exit
|
|
C
|
Cancel
|
|
Flow('N') will return TRUE if the user is tabbing forward into a field. Flow('P') will return TRUE if the user is moving backward into it.
The Online and Rich Client Samples projects (program LG12 and RLG12)