如何将ComboBox DisplayMember设置为与父对象具有关系的子对象的属性 [英] How do I set ComboBox DisplayMember to Child Object's property that Has a relationship with Parent Object

问题描述

如何将ComboBox DisplayMember设置为与父对象具有关系的子对象的属性。



例如。公共汽车是父类，但公共汽车是一个儿童类引擎。



ComboBox.DisplayMember = Bus.Engine.HorsePower;

How do I set ComboBox DisplayMember to a Child Object's property that Has a relationship with Parent Object.

For Example. Bus is a parent class, but a Bus HAS an Engine which is a child class.

ComboBox.DisplayMember = Bus.Engine.HorsePower;

推荐答案

您只需先将数据源分配给组合框。应用适当的连接以获取具有父类和子类属性的所需结构中的数据。然后设置显示成员和值成员。

Hi,

You just have to assign datasource first to combobox. Apply appropriate join to fetch data in desired structure which have properties of both parent and child classes. Then set display member and value member.

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