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using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Data;
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using System.Drawing;
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using System.Linq;
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using System.Text;
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using System.Windows.Forms;
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namespace MyForms
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{
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public partial class MyListFrom : Form
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{
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public MyListFrom()
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{
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InitializeComponent();
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}
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/**//// <summary>
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/// 在窗体的加载事件里写对控件的初始化以及限定
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/// </summary>
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/// <param name="sender"></param>
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/// <param name="e"></param>
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private void MyListFrom_Load(object sender, EventArgs e)
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{
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//下拉框内容设定为不可改变
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cmbType.DropDownStyle = ComboBoxStyle.DropDownList;
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//给下拉框添加元素
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cmbType.Items.Add("-=请选择显示的样式=-");
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cmbType.Items.Add("详细信息");
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cmbType.Items.Add("平铺");
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cmbType.Items.Add("简易显示");
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cmbType.SelectedIndex = 0; //默认选中第一个项
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//设定ListView控件的右键关联菜单
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lvwMyList.ContextMenuStrip = contextMenuStrip1;
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lvwMyList.View = View.Details; //设定ListView控件的默认显示方法
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lvwMyList.SmallImageList = imlShowHead; //指定并关联ListView控件小图标对应的图片存储控件
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lvwMyList.LargeImageList = imlShowBigPic; //指定并关联ListView控件大图标对应的图片存储控件
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lvwMyList.GridLines = true; //设定ListView控件是否显示网格线
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lvwMyList.MultiSelect = false; //设定ListView控件是否可以多选
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lvwMyList.FullRowSelect = true; //设定ListView控件是否可以一次选中整行
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//给ListView控件添加列头
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lvwMyList.Columns.Add("MyQQ号码",100); //100为列头的宽度
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lvwMyList.Columns.Add("昵称");
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lvwMyList.Columns.Add("年龄");
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lvwMyList.Columns.Add("性别");
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}
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/**//// <summary>
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/// 查询按钮的点击事件
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/// </summary>
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/// <param name="sender"></param>
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/// <param name="e"></param>
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private void btnSelect_Click(object sender, EventArgs e)
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{
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lvwMyList.Items.Clear(); //每次点击时,首先清空ListView内的所有项,不然每点一次会重复出现
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ListViewItem lvl = new ListViewItem(); //创建一个ListViewItem对象,只有ListViewItem对象才能添加到ListView控件内
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lvl.Text = "10000";
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lvl.Tag = "标记1"; //设定Tag属性,此属性不显示,可以用来标记,比如主键
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lvl.ImageIndex = 49; //设定对象对应的图像的索引
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lvl.SubItems.AddRange(new string[]
{"MoShin","保密","男"}); //添加子项
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lvwMyList.Items.Add(lvl); //将对象装入ListView控件
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//在添加一个对象
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ListViewItem lvi = new ListViewItem();
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lvi.Text = "10001";
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lvi.Tag = "标记2";
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lvi.ImageIndex = 89;
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lvi.SubItems.AddRange(new string[]
{ "小乖", "19", "女" });
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lvwMyList.Items.Add(lvi);
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}
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/**//// <summary>
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/// 下拉框选中索引发生变化时触发该事件
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/// </summary>
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/// <param name="sender"></param>
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/// <param name="e"></param>
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private void cmbType_SelectedIndexChanged(object sender, EventArgs e)
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{
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string myType = cmbType.Text; //接受到选择的显示样式的值
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//根据值去判断该使用那种显示方式
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if (myType == "详细信息")
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{
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lvwMyList.View = View.Details;
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}
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else if(myType == "平铺")
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{
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lvwMyList.View = View.LargeIcon;
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}
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else if (myType == "简易显示")
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{
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lvwMyList.View = View.Tile;
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}
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}
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//当鼠标右键关联菜单点击“查看”时触发该事件
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private void 查看TagToolStripMenuItem_Click(object sender, EventArgs e)
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{
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//判断是否选择了ListView控件中显示的项
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if (lvwMyList.SelectedItems.Count > 0)
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{
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MessageBox.Show(lvwMyList.SelectedItems[0].Tag.ToString(),"查询Tag",MessageBoxButtons.OK,MessageBoxIcon.Information);
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}
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else
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{
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MessageBox.Show("请选择一个用户!"); //如果没有选中,提示需要选中
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}
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}
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}
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}
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