C#中ListView控件应用实例.doc

C#中ListView控件应用实例ListView控件1 功能ListView控件可以显示带图标的项列表，用户可使用该控件创建类似Windows资源管理器的用户界面。ListView控件具有4种视图模式：（1）仅文本，这是默认视图，此视图下，只显示列表项的文本；（2）带有小图标的文本，此视图下，小图标随列表项的文本同时显示；（3）带有大图标的文本，此视图下，大图标随列表项的文本同时显示；（4）报表视图，此视图下，列表项显示在多个列中。图1为List View控件。图1 ListView 控件2属性ListView控件常用属性及说明如表1所示。表1 ListView控件常用属性及说明下面对比较重要的属性进行详细介绍。（1）View属性。用于获取或设置项在控件中的显示方式。语法：public View View get; set; 属性值：View值之一。默认为LargeIcon。View的属性值及说明如表2所示。表2 View的属性值及说明（2）FullrowSelect属性。用于指定是只选择某一项，还是选择某一项所在的整行。语法：public bool FullRowSelect get; set; 属性值：如果单击某项会选择该项及其所有子项，则为True；如果单击某项仅选择项本身，则为False。默认为False。说明：除非将ListView控件的View属性设置为Details，否则FullRowSelect属性无效。在ListView显示带有许多子项的项时，通常使用FullrowSelect属性，并且，在由于控件内容的水平滚动而无法看到项文本时，能够查看选定项是非常重要的。（3）GridLines属性。指定在包含控件中项及其子项的行和列之间是否显示网格线。语法：public bool GridLines get; set; 属性值：如果在项及其子项的周围绘制网格线，则为True；否则为False。默认为False。说明：除非将ListView控件的View属性设置为Details，否则GridLines属性无效。示例FullrowSelect属性本示例主要介绍View属性和FullrowSelect属性的使用方法，示例运行结果如图2所示。图2 FullrowSelect属性程序主要代码如下：this.lvStudent.View = View.Details;this.lvStudent.FullRowSelect = True;this.lvStudent.GridLines = True;完整程序代码如下：主程序文件完整程序代码using System;using System.Collections.Generic;using System.Windows.Forms;namespace _8_07static class Program/ / 应用程序的主入口点。/ STAThreadstatic void Main()Application.EnableVisualStyles();Application.SetCompatibleTextRenderingDefault(false);Application.Run(new frmListView();Form1窗体设计文件完整程序代码using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Text;using System.Windows.Forms;namespace _8_07public partial class Form1 : Formpublic Form1()InitializeComponent();Form1窗体代码文件完整程序代码namespace _8_07partial class Form1/ / 必需的设计器变量。/ private System.ComponentModel.IContainer components = null;/ / 清理所有正在使用的资源。/ / 如果应释放托管资源，为 true；否则为 tected override void Dispose(bool disposing)if (disposing & (components != null)components.Dispose();base.Dispose(disposing);#region Windows 窗体设计器生成的代码/ / 设计器支持所需的方法 - 不要/ 使用代码编辑器修改此方法的内容。/ private void InitializeComponent()ponents = new System.ComponentModel.Container();this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;this.Text = Form1;#endregionfrmListView窗体设计文件完整程序代码using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Text;using System.Windows.Forms;using System.Data.SqlClient;namespace _8_07public partial class frmListView : Formpublic frmListView()InitializeComponent();private void frmListView_Load(object sender, EventArgs e)private void bntDelete_Click(object sender, EventArgs e)lvStudent.Items.Clear();private void bntAdd_Click(object sender, EventArgs e)this.lvStudent.View = View.Details;this.lvStudent.FullRowSelect = true;SqlConnection con = new SqlConnection(server=(local);uid=sa;pwd=;database=zhy);con.Open();SqlCommand com = new SqlCommand(select * from student, con);SqlDataReader dr = com.ExecuteReader();this.lvStudent.Items.Clear();while (dr.Read()ListViewItem lt = new ListViewItem(dr.GetValue(0).ToString();lt.SubItems.Add(dr.GetValue(1).ToString();lt.SubItems.Add(dr.GetValue(2).ToString();this.lvStudent.Items.Add(lt);dr.Close();con.Close();this.lvStudent.Alignment = ListViewAlignment.SnapToGrid;this.lvStudent.GridLines = true;private void bntEsce_Click(object sender, EventArgs e)Application.Exit();private void label1_Click(object sender, EventArgs e)private void lvStudent_SelectedIndexChanged(object sender, EventArgs e)private void lvStudent_Click(object sender, EventArgs e)frmListView窗体代码文件完整程序代码namespace _8_07partial class frmListView/ / 必需的设计器变量。/ private System.ComponentModel.IContainer components = null;/ / 清理所有正在使用的资源。/ / 如果应释放托管资源，为 true；否则为 tected override void Dispose(bool disposing)if (disposing & (components != null)components.Dispose();base.Dispose(disposing);#region Windows 窗体设计器生成的代码/ / 设计器支持所需的方法 - 不要/ 使用代码编辑器修改此方法的内容。/ private void InitializeComponent()this.lvStudent = new System.Windows.Forms.ListView();this.columnHeader1 = new System.Windows.Forms.ColumnHeader();this.columnHeader2 = new System.Windows.Forms.ColumnHeader();this.columnHeader3 = new System.Windows.Forms.ColumnHeader();this.bntAdd = new System.Windows.Forms.Button();this.bntDelete = new System.Windows.Forms.Button();this.bntEsce = new System.Windows.Forms.Button();this.txtName = new System.Windows.Forms.TextBox();this.label1 = new System.Windows.Forms.Label();this.SuspendLayout();/ lvStudent/this.lvStudent.Columns.AddRange(new System.Windows.Forms.ColumnHeader this.columnHeader1,this.columnHeader2,this.columnHeader3);this.lvStudent.Location = new System.Drawing.Point(26, 32);this.lvStudent.Name = lvStudent;this.lvStudent.Size = new System.Drawing.Size(352, 114);this.lvStudent.TabIndex = 0;this.lvStudent.UseCompatibleStateImageBehavior = false;this.lvStudent.View = System.Windows.Forms.View.Details;this.lvStudent.SelectedIndexChanged += new System.EventHandler(this.lvStudent_SelectedIndexChanged);this.lvStudent.Click += new System.EventHandler(this.lvStudent_Click);/ columnHeader1/this.columnHeader1.Text = 学号;this.columnHeader1.Width = 97;/ columnHeader2/this.columnHeader2.Text = 学生姓名;this.columnHeader2.Width = 136;/ columnHeader3/this.columnHeader3.Text = 学生班级;this.columnHeader3.Width = 118;/ bntAdd/this.bntAdd.Location = new System.Drawing.Point(26, 171);this.bntAdd.Name = bntAdd;this.bntAdd.Size = new System.Drawing.Size(75, 23);this.bntAdd.TabIndex = 2;this.bntAdd.Text = 加截(&F);this.bntAdd.UseVisualStyleBackColor = true;this.bntAdd.Click += new System.EventHandler(this.bntAdd_Click);/ bntDelete/this.bntDelete.Location = new System.Drawing.Point(159, 171);this.bntDelete.Name = bntDelete;this.bntDelete.Size = new System.Drawing.Size(75, 23);this.bntDelete.TabIndex = 3;this.bntDelete.Text = 清除(&G);this.bntDelete.UseVisualStyleBackColor = true;this.bntDelete.Click += new System.EventHandler(this.bntDelete_Click);/ bntEsce/this.bntEsce.Location = new System.Drawing.Point(303, 171);this.bntEsce.Name = bntEsce;this.bntEsce.Size = new System.Drawing.Size(75, 23);this.bntEsce.TabIndex = 4;this.bntEsce.Text = 退出（&T);this.bntEsce.UseVisualStyleBackColor = true;this.bntEsce.Click += new System.EventHandler(this.bntEsce_Click);/ txtName/this.txtName.Location = new System.Drawing.Point(159, 209);this.txtName.Name = txtName;this.txtName.Size = new System.Drawing.Size(116, 21);this.txtName.TabIndex = 5;/ label1/this.label1.AutoSize = true;this.label1.Location = new System.Drawing.Point(73, 212);this.label1.Name = label1;this.label1.Size = new System.Drawing.Size(59, 12);this.label1.TabIndex = 6;this.label1.Text = 学生姓名:;this.label1.Click += new System.EventHandler(this.label1_Click);/ frmListView/this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;this.ClientSize = new System.Drawing.Size(418, 266);this.Controls.Add(this.label1);this.Controls.Add(this.txtName);this.Controls.Add(this.bntEsce);this.Controls.Add(this.bntDelete);this.Controls.Add(this.bntAdd);this.Controls.Add(this.lvStudent);this.Name = frmListView;this.Text = frmListView;this.Load += new System.EventHandler(this.frmListView_Load);this.ResumeLayout(false);this.PerformLayout();#endregionprivate System.Windows.Forms.ListView lvStudent;private System.Windows.Forms.Button bntAdd;private System.Windows.Forms.Button bntDelete;private System.Windows.Forms.Button bntEsce;private System.Windows.Forms.ColumnHeader columnHeader1;private System.Windows.Forms.ColumnHeader columnHeader2;private System.Windows.Forms.ColumnHeader columnHeader3;private System.Windows.Forms.TextBox txtName;private System.Windows.Forms.Label label1;3方法（1）HitTest方法。该方法在给定x和y坐标的情况下，提供项信息。（2）Clear方法。该方法用于删除ListView控件中所有的项。语法：public void Clear ()例如，下面删除名称为lvStudent的ListView控件的所有项：lvStudent.Items.Clear();4事件（1）ItemCheck事件。该事件在选中ListView控件项时触发此事件。（2）Click事件。该事件在单击ListView控件列时触发。语法：public event EventHandler Click示例Click事件的使用本示例实现效果为，当程序运行时，单击【ListView】按钮，将姓名显示在文本框中。示例运行结果如图3所示。图3 Click事件的使用程序主要代码如下：private void lvStudent_Click(object sender, EventArgs e)this.txtName.Text = lvStudent.SelectedItems0.SubItems1.Text;完整程序代码如下：主程序文件完整程序代码using System;using System.Collections.Generic;using System.Windows.Forms;namespace _8_07static class Program/ / 应用程序的主入口点。/ STAThreadstatic void Main()Application.EnableVisualStyles();Application.SetCompatibleTextRenderingDefault(false);Application.Run(new frmListView();Form1窗体设计文件完整程序代码using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Text;using System.Windows.Forms;namespace _8_07public partial class Form1 : Formpublic Form1()InitializeComponent();Form1窗体代码文件完整程序代码namespace _8_07partial class Form1/ / 必需的设计器变量。/ private System.ComponentModel.IContainer components = null;/ / 清理所有正在使用的资源。/ / 如果应释放托管资源，为 true；否则为 tected override void Dispose(bool disposing)if (disposing & (components != null)components.Dispose();base.Dispose(disposing);#region Windows 窗体设计器生成的代码/ / 设计器支持所需的方法 - 不要/ 使用代码编辑器修改此方法的内容。/ private void InitializeComponent()ponents = new System.ComponentModel.Container();this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;this.Text = Form1;#endregionfrmListView窗体设计文件完整程序代码using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Text;using System.Windows.Forms;using System.Data.SqlClient;namespace _8_07public partial class frmListView : Formpublic frmListView()InitializeComponent();private void frmListView_Load(object sender, EventArgs e)private void bntDelete_Click(object sender, EventArgs e)lvStudent.Items.Clear();private void bntAdd_Click(object sender, EventArgs e)this.lvStudent.View = View.Details;this.lvStudent.FullRowSelect = true;SqlConnection con = new SqlConnection(server=(local);uid=sa;pwd=;database=zhy);con.Open();SqlCommand com = new SqlCommand(select * from student, con);SqlDataReader dr = com.ExecuteReader();this.lvStudent.Items.Clear();while (dr.Read()ListViewItem lt = new ListViewItem(dr.GetValue(0).ToString();lt.SubItems.Add(dr.GetValue(1).ToString();lt.SubItems.Add(dr.GetValue(2).ToString();this.lvStudent.Items.Add(lt);dr.Close();con.Close();this.lvStudent.Alignment = ListViewAlignment.SnapToGrid;this.lvStudent.GridLines = true;private void bntEsce_Click(object sender, EventArgs e)Application.Exit();private void label1_Click(object sender, EventArgs e)private void lvStudent_SelectedIndexChanged(object sender, EventArgs e)private void lvStudent_Click(object sender, EventArgs e)this.txtName.Text = lvStudent.SelectedItems0.SubItems1.Text;frmListView窗体代码文件完整程序代码namespace _8_07partial class frmListView/ / 必需的设计器变量。/ private System.ComponentModel.IContainer components = null;/ / 清理所有正在使用的资源。/ / 如果应释放托管资源，为 true；否则为 tected override void Dispose(bool disposing)if (disposing & (components != null)components.Dispose();base.Dispose(disposing);#region Windows 窗体设计器生成的代码/ / 设计器支持所需的方法 - 不要/ 使用代码编辑器修改此方法的内容。/ private void InitializeComponent()this.lvStudent = new System.Windows.Forms.ListView();this.columnHeader1 = new System.Windows.Forms.ColumnHeader();this.columnHeader2 = new System.Windows.Forms.ColumnHeader();this.columnHeader3 = new System.Windows.Forms.ColumnHeader();this.bntAdd = new System.Windows.Forms.Button();this.bntDelete = new System.Windows.Forms.Button();this.bntEsce = new System.Windows.Forms.Button();this.txtName = new System.Windows.Forms.TextBox();this.label1 = new System.Windows.Forms.Label();this.SuspendLayout();/ lvStudent/this.lvStudent.Columns.AddRange(new System.Windows.Forms.ColumnHeader this.columnHeader1,this.columnHeader2,this.columnHeader3);this.lvStudent.Location = new System.Drawing.Point(26, 32);this.lvStudent.Name = lvStudent;this.lvStudent.Size = new System.Drawing.Size(352, 114);this.lvStudent.TabIndex = 0;this.lvStudent.UseCompatibleStateImageBehavior = false;this.lvStudent.View = System.Windows.Forms.View.Details;this.lvStudent.SelectedIndexChanged += new System.EventHandler(this.lvStudent_SelectedIndexChanged);this.lvStudent.Click += new System.EventHandler(this.lvStudent_Click);/ columnHeader1/this.columnHeader1.Text = 学号;this.columnHeader1.Width = 97;/ columnHeader2/this.columnHeader2.Text = 学生姓名;this.columnHeader2.Width = 136;/ columnHeader3/this.columnHeader3.Text = 学生班级;this.columnHeader3.Width = 118;/ bntAdd/this.bntAdd.Location = new System.Drawing.Point(26, 171);this.bntAdd.Name = bntAdd;this.bntAdd.Size = new System.Drawing.Size(75, 23);this.bntAdd.TabIndex = 2;this.bntAdd.Text = 加截(&F);this.bntAdd.UseVisualStyleBackColor = true;this.bntAdd.Click += new System.EventHandler(this.bntAdd_Click);/ bntDelete/this.bntDelete.Location = new System.Drawing.Point(159, 171);this.bntDelete.Name = bntDelete;this.bntDelete.Size = new System.Drawing.Size(75, 23);this.bntDelete.TabIndex = 3;this.bntDelete.Text = 清除(&G);this.bntDelete.UseVisualStyleBackColor = true;this.bntDelete.Click += new System.EventHandler(this.bntDelete_Click);/ bntEsce/this.bntEsce.Location = new System.Drawing.Point(303, 171);this.bntEsce.Name = bntEsce;this.bntEsce.Size = new System.Drawing.Size(75, 23);this.bntEsce.TabIndex = 4;this.bntEsce.Text = 退出（&T);this.bntEsce.UseVisualStyleBackColor = true;this.bntEsce.Click += new System.Event