C#导入导出Excel通用类(SamWang)
1 /******************************************************************
2 *
3 *
4 * 描 述：
5 * 导入导出Excel通用类
6 * 版 本： V1.0
7 * 环 境： VS2005
8 ******************************************************************/
9 using System;
10 using System.Collections.Generic;
11 using System.Text;
12 using System.Windows.Forms;
13 using Excel = Microsoft.Office.Interop.Excel;
14 using System.Data;
15 using System.Drawing;
16 using System.Collections;
17 using System.Diagnostics;
18 using System.Data.OleDb;
19
20 namespace LingDang.CRM.UI.Client
21 {
22 public class ExcelIO:IDisposable
23 {
24 #region Constructors
25 private ExcelIO()
26 {
27 status = IsExistExecl() ? 0 : -1;
28 }
29
30 public static ExcelIO GetInstance()
31 {
32 //if(instance == null)
33 //{
34 // lock (syncRoot)
35 // {
36 // if(instance == null)
37 // {
38 // instance = new ExcelIO();
39 // }
40 // }
41 //}
42 //return instance;
43 return new ExcelIO();
44 }
45 #endregion
46
47 #region Fields
48 private static ExcelIO instance;
49 private static readonly object syncRoot = new object();
50 private string returnMessage;
51 private Excel.Application xlApp;
52 private Excel.Workbooks workbooks = null;
53 private Excel.Workbook workbook = null;
54 private Excel.Worksheet worksheet = null;
55 private Excel.Range range = null;
56 private int status = -1;
57 private bool disposed = false;//是否已经释放资源的标记
58 #endregion
59
60 #region Properties
61 /// <summary>
62 /// 返回信息
63 /// </summary>
64 public string ReturnMessage
65 {
66 get { return returnMessage; }
67 }
68
69 /// <summary>
70 /// 状态:0-正常，-1-失败 1-成功
71 /// </summary>
72 public int Status
73 {
74 get { return status;}
75 }
76 #endregion
77
78 #region Methods
79 /// <summary>
80 /// 判断是否安装Excel
81 /// </summary>
82 /// <returns></returns>
83 protected bool IsExistExecl()
84 {
85 try
86 {
87 xlApp = new Excel.Application();
88 if (xlApp == null)
89 {
90 returnMessage = "无法创建Excel对象，可能您的计算机未安装Excel!";
91 return false;
92 }
93 }
94 catch (Exception ex)
95 {
96
补充：软件开发 , C# ,
