c#(winform)中自定义ListItem类方便ComboBox添加Item项
一，定义ListItem类
public class ListItem { private string _key = string.Empty; private string _value = string.Empty; public ListItem(string pKey, string pValue) { _key = pKey; _value = pValue; } public override string ToString() { return this._value; } public string Key { get { return this._key; } set { this._key = value; } } public string Value { get { return this._value; } set { this._value = value; } } }ListItem listItem1 = new ListItem("1","中国");ListItem listItem2 = new ListItem("1","美国");ListItem listItem3 = new ListItem("1","英国");comboBox1.Items.Add(listItem1);comboBox1.Items.Add(listItem2);comboBox1.Items.Add(listItem3);string id = ((ListItem)comboBox1.SelectedItem).Key;string value = ((ListItem)comboBox1.SelectedItem).Value;