Many functions are dependent on certain conditions are met. For example, a tool button does not make sense, if no map window exists or there is no editable layer. So the button should not even offered in this case - and should be disable.
With the Ribbon SDK, you no longer have to validate these conditions in your own routine after the user has pressed the button. The conditions are now properties of the Control.
Selection |
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True: To enable the control a selection is required. False: To enable the control NO selection is available Unknown: The condition does not matter
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Editable |
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True: To enable the control a map window with an editable layer is required False: Although this value is possible, but there is no meaningful example Unknown: The condition does not matter
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Mappable |
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True: To enable the control a mappable table or selection is required False: To enable the control a non mappable table or selection is required Unknown: The condition does not matter This condition is only effective if other condition are set: Selection = True and/or Table = tablename
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Writable |
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True: To enable the control a writable table or selection is required False: To enable the control a readonly table or selection is required Unknown: The condition does not matter This condition is only effective if other condition are set: Selection = True and/or Table = tablename
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Table |
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Text, free: The name of the required table in conjunction with other requirements Selection/Editable/Mappable/Writable
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Frontwindow |
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Browser Layout Map The type of a required front window to enable the control |
Examples
To enable the control a selection from 'Trees' must be available: Selection=Tue, Table=Trees
To enable the control a mapper window with any editable layer must be in front: Editable=Tue, Frontwindow=Map
To enable the control a writable and mappable table 'Trees' must be open : Editable=Tue, Mappable=True, Table=Trees
See also: Control Properties
