Questions And Answers for PowerBuilder Interviews

Question

In a DataWindow, there are few fields with validation rules, and few fields with script in the ItemChanged event. I want to display custom error message when data doesn't go through the ItemChanged event, but want to display default error messages when the data doesn't go through the validation rules. What should I do?

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Answer

Well, define an instance variable. Turn it one when you decide the data is invalid in the ItemChanged event. In the ItemError event, return appropriate return code depending on the instance variable value and reset the instance variable to it's default value appropriately.

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