Silverlight之Combox用法

Silverlight中的Combox控件功能类似.NET中的DropDownList控件，但是用法上又是于DropDownList有点区别.

譬如，我们要做一个年份的下拉框，数据源我们通过一个类来实例化实现。

1、新建一个类

using System;

using System.Net;

using System.Windows;

using System.Windows.Controls;

using System.Windows.Documents;

using System.Windows.Ink;

using System.Windows.Input;

using System.Windows.Media;

using System.Windows.Media.Animation;

using System.Windows.Shapes;

namespace TileViewAnimation.Component

{

public class Year

public string SYear { get; set; }

}

2、在MainPage.xaml页面中拖入Combox控件，在构造函数中实例化并进行绑定绑定。

//年份数据源

List<Year> years = new List<Year>()

new Year(){ SYear="2008"},

new Year(){ SYear="2009"},

new Year(){ SYear="2010"},

new Year(){ SYear="2011"},

new Year(){ SYear="2012"},

new Year(){ SYear="2013"},

new Year(){ SYear="2014"},

new Year(){ SYear="2015"},

new Year(){ SYear="2016"},

new Year(){ SYear="2017"}

};

3、数据绑定和显示成员设置

this.cbstart_year.ItemsSource = years;

this.cbstart_year.DisplayMemberPath = "SYear";

4、获取当前年份，并让当前年份处于被选中状态

//根据实际时间进行下拉框数据的绑定

string year = System.DateTime.Now.Year.ToString();

//年份索引

int index_year = -1;

for (int i = 0; i < years.Count; i++)

if (years[i].SYear == year)

index_year = i;

this.cbstart_year.SelectedIndex = index_year;