//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 ",
"Use Automation to Transfer an Array of Data to a Range on a Worksheet ",
"Use Automation to Transfer an ADO Recordset to a Worksheet Range ",
"Use Automation to Create a QueryTabl