//这里加添加一个Excel对象的包装器。就是添加一个引用
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
namespace ExcelTest
{
 /// <summary>
 /// Form3 的摘要说明。
 /// </summary>
 public class Form3 : System.Windows.Forms.Form
 {
  private System.Windows.Forms.Button button1;
  private System.Windows.Forms.ComboBox comboBox1;
  /// <summary>
  /// 必需的设计器变量。
  /// </summary>
  private System.ComponentModel.Container components = null;
  // Excel object references.
  private Excel.Application m_objExcel =  null;
  private Excel.Workbooks m_objBooks = null;
  private Excel._Workbook m_objBook = null;
  private Excel.Sheets m_objSheets = null;
  private Excel._Worksheet m_objSheet = null;
  private Excel.Range m_objRange =  null;
  private Excel.Font m_objFont = null;
  private Excel.QueryTables m_objQryTables = null;
  private Excel._QueryTable m_objQryTable = null;
  // Frequenty-used variable for optional arguments.
  private object m_objOpt = System.Reflection.Missing.Value;
  // Paths used by the sample code for accessing and storing data.
  private string m_strNorthwind = @"C:\Program Files\Microsoft Visual Studio\VB98\NWIND.MDB";
  public Form3()
  {
   //
   // Windows 窗体设计器支持所必需的
   //
   InitializeComponent();
   //
   // TODO: 在 InitializeComponent 调用后添加任何构造函数代码
   //
  }
  /// <summary>
  /// 清理所有正在使用的资源。
  /// </summary>
  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
  /// <summary>
  /// 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。
  /// </summary>
  private void InitializeComponent()
  {
   this.button1 = new System.Windows.Forms.Button();
   this.comboBox1 = new System.Windows.Forms.ComboBox();
   this.SuspendLayout();
   // 
   // button1
   // 
   this.button1.Location = new System.Drawing.Point(208, 136);
   this.button1.Name = "button1";
   this.button1.Size = new System.Drawing.Size(128, 32);
   this.button1.TabIndex = 0;
   this.button1.Text = "button1";
   this.button1.Click += new System.EventHandler(this.button1_Click);
   // 
   // comboBox1
   // 
   this.comboBox1.Location = new System.Drawing.Point(112, 40);
   this.comboBox1.Name = "comboBox1";
   this.comboBox1.Size = new System.Drawing.Size(376, 20);
   this.comboBox1.TabIndex = 1;
   this.comboBox1.Text = "comboBox1";
   // 
   // Form3
   // 
   this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
   this.ClientSize = new System.Drawing.Size(544, 333);
   this.Controls.Add(this.comboBox1);
   this.Controls.Add(this.button1);
   this.Name = "Form3";
   this.Text = "Form3";
   this.Load += new System.EventHandler(this.Form3_Load);
   this.ResumeLayout(false);
  }
  #endregion
  [STAThread]
  static void Main() 
  {
   Application.Run(new Form3());
  }
  private void Form3_Load(object sender, System.EventArgs e)
  {
   comboBox1.DropDownStyle = ComboBoxStyle.DropDownList;
   comboBox1.Items.AddRange(new object[]{
              "Use Automation to Transfer Data Cell by Cell ",