form1.cs

C#操作Excel程序

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Data.SqlClient;

namespace Excel操作
{
	/// <summary>
	/// Form1 的摘要说明。
	/// </summary>
	public class Form1 : System.Windows.Forms.Form
	{
		private string ConnectionString = "Server=.;uid=sa;pwd=sa;Database=pubs";
		private string SelectCommandString = "Select * From Titles";
		private string TableName = "Titles";

		private System.Windows.Forms.DataGrid dataGrid1;
		/// <summary>
		/// 必需的设计器变量。
		/// </summary>
		private System.ComponentModel.Container components = null;

		public Form1()
		{
			//
			// 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.dataGrid1 = new System.Windows.Forms.DataGrid();
			((System.ComponentModel.ISupportInitialize)(this.dataGrid1)).BeginInit();
			this.SuspendLayout();
			// 
			// dataGrid1
			// 
			this.dataGrid1.DataMember = "";
			this.dataGrid1.Dock = System.Windows.Forms.DockStyle.Fill;
			this.dataGrid1.HeaderForeColor = System.Drawing.SystemColors.ControlText;
			this.dataGrid1.Location = new System.Drawing.Point(0, 0);
			this.dataGrid1.Name = "dataGrid1";
			this.dataGrid1.Size = new System.Drawing.Size(292, 266);
			this.dataGrid1.TabIndex = 0;
			// 
			// Form1
			// 
			this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
			this.ClientSize = new System.Drawing.Size(292, 266);
			this.Controls.Add(this.dataGrid1);
			this.Name = "Form1";
			this.Text = "Form1";
			this.Load += new System.EventHandler(this.Form1_Load);
			((System.ComponentModel.ISupportInitialize)(this.dataGrid1)).EndInit();
			this.ResumeLayout(false);

		}
		#endregion

		/// <summary>
		/// 应用程序的主入口点。
		/// </summary>
		[STAThread]
		static void Main() 
		{
			Application.Run(new Form1());
		}

		private void Form1_Load(object sender, System.EventArgs e)
		{
			SqlDataAdapter da = new SqlDataAdapter( SelectCommandString, ConnectionString );
			DataSet ds = new DataSet();

			da.Fill( ds, TableName );
			this.dataGrid1.DataSource = ds;
			this.dataGrid1.DataMember = TableName;


//			//建立excel文件  

			Excel.ApplicationClass excel = new Excel.ApplicationClass();
			excel.Visible = false;

			object objMissing = System.Reflection.Missing.Value;

			Excel.Workbook NewBook = (Excel.Workbook)excel.Workbooks.Add( 1 );
			Excel.Worksheet NewSheet = (Excel.Worksheet)NewBook.Worksheets[1];
			NewSheet.Name = "Haha";

//			((Excel.Range)NewSheet.Cells[2, 3]).EntireRow.Insert( 0, 0 );
//			NewSheet.Cells[2, 3] = "Test";

			int RowIndex = 1;
			int ColIndex = 0;
			
						
			DataTable Table = ds.Tables[TableName];
			
			foreach ( DataColumn Col in Table.Columns )
			{
				ColIndex++;
				NewSheet.Cells[1,ColIndex] = Col.ColumnName;
			}
			
			foreach ( DataRow Row in Table.Rows )
			{
				RowIndex++;
				ColIndex = 0;

				foreach ( DataColumn Col in Table.Columns )
				{
					ColIndex++;
					NewSheet.Cells[RowIndex, ColIndex] = Row[Col.ColumnName].ToString();
				}
			}






			NewBook.SaveAs( "E:\\Text.xls", objMissing, objMissing, objMissing, objMissing, 
				objMissing, Excel.XlSaveAsAccessMode.xlShared, objMissing, objMissing, objMissing, objMissing, objMissing );
			

			NewBook = null;
			excel.Quit();
			excel = null;


//			excel.Visible = false;
//			excel.DisplayAlerts = false;
//
//			try
//			{
//				excel.Save( @"C:\ExcelTable.xls" );
//				excel.Application.Workbooks.Close();
//				excel.Application.Quit();
//				excel.Quit();
//			}
//			catch ( System.Exception exp )
//			{
//				MessageBox.Show( exp.Message );
//			}
//
//			System.Runtime.InteropServices.Marshal.ReleaseComObject( excel );
//			GC.Collect();		
		}
	}
}