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I have a WPF sub window with some input controls that the user has to correctly fill before pressing Ok button.

I have already implemented the interface IDataErrorInfo to validate all properties bound to UI Controls.

Now I would like that the IsEnabled property of Ok button is True only if ALL controls are valid, otherwise it has to be set to False.

It should be easy but I cannot find the correct solution. Do you have any suggestion?

Thanks in advance!

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再见 ;-）

我认为您可以通过转换为的 IValueConverter （您必须实现）将按钮的属性绑定到（例如）数据的属性（IsEnabled例如，如果值 if比 return ）。IDataErrorInfo.ErrorstringboolString.Emptytrue

另一种解决方案是使用Commands 并将此逻辑包含在CanExecute: 中，这样您只需将Command与您的Button. 高温高压

于 2009-01-15T13:27:40.157 回答