从IValueConverter获取对ViewModel的引用 [英] Getting a reference to the ViewModel from an IValueConverter

问题描述

是否有一种干净的和/或可接受的从IValueConverter引用ViewModel的标准方法，还是这打破了MVVM模式？基本上，我想基于ViewModel的其他属性在UI中转换绑定数据。我猜这与您如何从IValueConverter引用窗口/页面相同，因为对控件的引用没有传递到Convert / ConvertBack方法。

IValueConverter 。

签出此关于 IValueConverters 的讨论使用MVVM。

Is there a clean and/or an accepted standard way of referring back to the ViewModel from an IValueConverter, or does that break the MVVM pattern? Basically, I want to convert bound data in the UI based on other properties of the ViewModel. I guess this is the same question as how do you refer back to the Window/Page from an IValueConverter since a reference to the control is not passed to the Convert/ConvertBack methods.

解决方案

I would suggest adding a new property to the ViewModel that concatenates or combines the other properties in the ViewModel. This eliminates the need for an IValueConverter all together.

Check out this discussion on IValueConverters when using MVVM.

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