Validation UI input element with Viewmodel property

asked 2015-08-17 03:19:10 +0800

redcode1934 gravatar image redcode1934

Hi, I have requirement need to completed, I need validate an input field of record on UI with the previous record.

I had created the property(object) in view model which get the previous record, I also read the sample code from the document, it seem validator is focus on UI element validation, I wonder the validator could work with my requirement, does any body know about it?

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answered 2015-08-19 02:56:12 +0800

JoeHuang gravatar image JoeHuang
1126 2

Hi, You can implement your own validator by extending AbstractValidator, and access the previous record directly in your view model or by passing an argument to the validator.

See more detail at sections: "Implement a Validator" and "Pass and Retrieve Parameters" in the below link. http://books.zkoss.org/zk-mvvm-book/8.0/data_binding/validator.html

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Asked: 2015-08-17 03:19:10 +0800

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Last updated: Aug 19 '15

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