using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
namespace ToDictionary
{
public partial class Frm_Main : Form
{
public Frm_Main()
{
InitializeComponent();
}
private void Frm_Main_Load(object sender, EventArgs e)
{
//结构泛型列表
Listusers = new List{
new UserInfo{UserCode=1, UserName="赵*东", Password="001"},
new UserInfo{UserCode=2, UserName="王*科", Password="002"},
new UserInfo{UserCode=3, UserName="王*军", Password="003"},
new UserInfo{UserCode=4, UserName="吕*双", Password="004"}};
//运用LINQ查找用户称谓中包含"王"的序列
//此时的query变量的类型是IEnumerable类型
var query = from item in users
where item.UserName.IndexOf("王") > -1
select item;
//运用ToDictionary方法将query转换为字典类型
Dictionary
label1.Text = "Dictionary的结果是：
";
foreach (var user in userDict)
{
string temp = string.Format("(Key:{0},Value:{1})", user.Key, user.Value.UserName);
label1.Text += temp + "
";
}
}
}
public class UserInfo
{
public int UserCode { get; set; }//用户代码
public string UserName { get; set; }//用户称谓
public string Password { get; set; }//暗码
}
}
