deterministic and asynchronous field validation in WPF -

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From my MVMM based application, I have to validate the field from the data entry. If possible, I would like to use standard WPF authentication binding with error templates.

However, I would prefer to execute the validation logic for the following reasons, to be fully operated / triggered by ViewModel (dragging in the view, not by the view):

    < Li> It should work asynchronously because it can take a while to complete the verification logic.
  1. To perform the verification logic, I need to be more determinant and fine sugarcane (for example, when users "Apply"

    I know that Silverlight In the INotifyDataErrorInfo , which was actually introduced for this purpose, but WPF does not. How can I still achieve my verification logic in a regular and asynchronous form?

    Ray has posted a reply on the question that apparently gave this one answer.



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