绑定到属性

本文介绍了绑定到属性的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我上课

public class Car { [Description("name of the car")] public string Name { get; set; } [Description("age of the car")] public int Age { get; set; } }

是否有可能将Description属性绑定到Label内容.我正在寻找的解决方案不需要实例化Car对象.

Is there any possibility to bind Description attribute to Label content. The solution what I'm looking for shouldn't require to instantiate Car object.

推荐答案

这不是一个适当的绑定(无论如何对于静态数据来说都是不必要的)，但是您可以轻松地创建 MarkupExtension 进行检索，只需传递类型和属性名称并获取它通过反射.

It won't be a proper binding (which is not necessary for static data anyway) but you can easily create a MarkupExtension to retrieve it, just pass the type and the property name and get it via reflection.

概述如下:

public Type Type { get; set; } public string PropertyName { get; set; } ProvideValue: Type.GetProperty(PropertyName) .GetCustomAttributes(true) .OfType<DescriptionAttribute>() .First() .Description

<!-- Usage example --> Text="{me:Description Type=local:Car, PropertyName=Name}"