C#获得文件属性信息的实现方法

using System;using System.Drawing;using System.Collections;using System.ComponentModel;using System.Windows.Forms;using System.Data;using System.IO;namespace 获取文件属性{ public class Form1 : System.Windows.Forms.Form { private System.Windows.Forms.ListBox listBox1; private System.Windows.Forms.Button button1; private System.Windows.Forms.OpenFileDialog openFileDialog1; private System.ComponentModel.Container components = null; public void AddItem(string sItem) {  listBox1.Items.Add(sItem); // 添加项 sItem 到 listBox1 中 } public Form1() {  InitializeComponent(); } protected override void Dispose( bool disposing ) {  if( disposing )  {  if (components != null)  {   components.Dispose();  }  }  base.Dispose( disposing ); } #region Windows 窗体设计器生成的代码 private void InitializeComponent() {  this.listBox1 = new System.Windows.Forms.ListBox();  this.button1 = new System.Windows.Forms.Button();  this.openFileDialog1 = new System.Windows.Forms.OpenFileDialog();  this.SuspendLayout();  // listBox1  this.listBox1.ItemHeight = 12;  this.listBox1.Location = new System.Drawing.Point(8, 56);  this.listBox1.Name = "listBox1";  this.listBox1.Size = new System.Drawing.Size(272, 208);  this.listBox1.TabIndex = 0;  // button1  this.button1.Location = new System.Drawing.Point(96, 8);  this.button1.Name = "button1";  this.button1.Size = new System.Drawing.Size(96, 32);  this.button1.TabIndex = 1;  this.button1.Text = "请选择文件";  this.button1.Click += new System.EventHandler(this.button1_Click);  // Form1  this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);  this.ClientSize = new System.Drawing.Size(292, 273);  this.Controls.Add(this.button1);  this.Controls.Add(this.listBox1);  this.Name = "Form1";  this.Text = "获取文件属性";  this.ResumeLayout(false); } #endregion [STAThread] static void Main() {  Application.Run(new Form1()); } private void button1_Click(object sender, System.EventArgs e) {  if(this.openFileDialog1.ShowDialog() == DialogResult.OK)  {  // 清除 listBox1 中所有的项  listBox1.Items.Clear();  FileInfo file = new FileInfo(this.openFileDialog1.FileName);  // 向 ListBox 中一次添加一个项，通过防止该控件绘图来维护性能，  // 直到调用 EndUpdate 方法为止  listBox1.BeginUpdate();  // 获取文件名  AddItem("文件名 : " + file.Name);  // 获取文件的长度  AddItem("文件长度(bytes) : " + file.Length);  // 获取当前 FileSystemInfo 对象的创建时间  AddItem("创建时间 : " + file.CreationTime.ToString());  // 获取上次访问当前文件或目录的时间  AddItem("最后访问时间 : " + file.LastAccessTime.ToString());  // 获取上次写入当前文件或目录的时间  AddItem("最后写入时间 : " + file.LastWriteTime.ToString());  listBox1.EndUpdate();  } } }}