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Business Rule error message handling
Posted: 24 Jul 09 10:40 AM
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I am writing a simple validation business rule but am unsure on how to raise an error to display in the client.
The ContactDetails form already has a business rule HasPropgationChanges but I want to add additional rules onto this before saving. Only problem is that you can only have the one business rule so I can't set another with a "Show Message" option.
Whats the best way to handle displaying messages to users about various validation points on a form?
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Re: Business Rule error message handling
Posted: 28 Jul 09 2:56 PM
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Tony,
I will typically throw an exception in a validation business rule. This will pop a message to the user and terminate further execution:
throw new Sage.Platform.Application.ValidationException("MyField is required");
I would then set the save button to call the validation rule followed by the save method. If any exceptions occur, the save won't fire. |
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Re: Business Rule error message handling
Posted: 29 Jul 09 11:12 AM
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Why throw an exception in the first place if you can simply return false and setup a ShowMessage action for OnFailure?
Am I missing something? |
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Re: Business Rule error message handling
Posted: 29 Jul 09 11:20 AM
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Because I want the message to state what the problem was.
The ShowMessage action only seems to allow a restricted message which wouldn't be related to what the error was.
You can only have one business rule with a show message action |
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