如何将多个值数据绑定到WP7中的单个TextBlock.Text？ [英] How to data bind multiple values to a single TextBlock.Text in WP7?

问题描述

如何将两个属性绑定到单个TextBlock.Text（例如，名字和姓氏或当前值和最大值）？

How can I bind 2 properties to a single TextBlock.Text (eg. first name and last name or current value and max value)?

类似于： / p>

something like:

// IValueConverter
public object Convert( .... )
{
    return string.Format("{0} (max: {1})", currentValue, maxValue);
}

问题是我希望TextBlock.Text在 currentValue 或 maxValue 已更改。那么如何使用数据绑定来监听来自2个或更多属性的更改？

The problem is I want TextBlock.Text to be updated when currentValue or maxValue has changed. So how can I listen to changes from 2 or more properties using data binding?

有没有另外一种方法比用户使用 IValueConverter ？

Is there another way than usering IValueConverter?

推荐答案

Silverlight 3（在其上构建Windows Phone 7框架）不支持MultiBinding，这是你将用来实现你所需要的。但是，有一个解决方案解决方案，您可以使用在 MultiBinding for Sivlerlight 3 中的描述也可以使用WP7。

Silverlight 3 (on which the Windows Phone 7 framework is built) doesn't support MultiBinding, which is what you would use to achieve what you need. However, there is a workaround solution that you can use described in the post MultiBinding for Sivlerlight 3, which should also work on WP7.

或者，您可以扩展视图模型（或至少是您所暴露的属性），以显示一个聚合值并引发的属性财产变更通知，当更改。

Alternatively, you could extend your view model (or at least the properties that you are exposing) to expose a property that aggregates your values and raises property change notification when either changes.

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