winform的ComboBox中只能赋值text,显示和值是一样的,很多时候不能满足根本需要,熟悉B/S开发的coder最常用的就是text和value分开的,而且web下DropDownList本来就是分为text和value.ComboBox要实现同样功能,使item有多个值,只能用重写一个类来实现了. 重写类如下: using System; namespace sm { class cListItem { private string id = string.Empty; public
带搜索的ComboBox就是给ComboBox一个依赖属性的ItemSource,然后通过数据源中是否包含要查询的值,重新给ComboBox绑定数据源. public class EditComboBox : ComboBox { private bool t = true;//首次获取焦点标志位 private ObservableCollection<object> bindingList = new ObservableCollection<object>();//数据源绑定
Custom Components In this document The Basic Approach Fully Customized Components Compound Controls Modifying an Existing View Type Android offers a sophisticated and powerful componentized model for building your UI, based on the fundamental layout