?最近閑了，花點幾天時間將項目中常用的一些類、方法做了一下總結，希望對大家有用。

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???????? 實用類：UtilityClass 包含如下方法

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???????? 判斷對象是否為空或NULL,如果是空或NULL返回true，否則返回false

???????? 驗證手機號是否正確 13,15,18

???????? 驗證郵箱

???????? 驗證網址

???????? MD5加密,返回32位的字符串

???????? DES加密/解密方法

???????? 把字符串的第一個字符變為大寫

???????? 判斷一個字符串是否是數字

???????? 判斷一個字符串是否是時間

???????? 判斷一個字符串是否是decimal類型

???????? 生成隨機數方法 小于9位

???????? 獲取網站配置ConfigurationManager_AppSettings鍵值

???????? 檢查某個文件是否存在于磁盤上，存在--true，不存在--false

???????? 在服務器上創建文件夾

???????? 轉換相對路徑為物理路徑

???????? 兩個值的百分比例

???????? 截取字符枚舉值

???????? 獲取指定長度的字符串

???????? 地址欄傳值加密/解密

???????? 獲得當前頁面客戶端的IP

???????? 格式化要顯示的內容，主要用于在網頁上顯示由textarea產生的內容

???????? 判斷當前訪問是否來自瀏覽器軟件

???????? 判斷當前訪問是否來自非IE瀏覽器軟件

?

???? SQL操作類：DBAccess 包含如下方法?

????

代碼
?1 public class DBAccess
?2???? {
?3???????? private static readonly string _connectionString = ConfigurationManager.ConnectionStrings["connectionString"].ToString();
?4
?5???????? // ExecuteNonQuery
?6???????? public static int ExecuteNonQuery(string commandText)
?7???????? {
?8???????????? return Sqlhelper.ExecuteNonQuery(_connectionString, CommandType.Text, commandText);
?9???????? }
10???????? public static int ExecuteNonQuery(string commandText, params SqlParameter[] cmdParameters)
11???????? {
12???????????? return Sqlhelper.ExecuteNonQuery(_connectionString, CommandType.Text, commandText, cmdParameters);
13???????? }
14???????? /// <summary>
15???????? /// 執行存儲過程
16???????? /// </summary>
17???????? /// <param name="procName"></param>
18???????? /// <param name="cmdParameters"></param>
19???????? /// <returns></returns>
20???????? public static int ExecuteNonQueryProc(string procName,params SqlParameter[] cmdParameters)
21???????? {
22???????????? return Sqlhelper.ExecuteNonQuery(_connectionString, CommandType.StoredProcedure, procName, cmdParameters);
23
24???????? }
25
26???????? // ExecuteDataset
27???????? public static DataSet ExecuteDataset(string commandText)
28???????? {
29???????????? return Sqlhelper.ExecuteDataset(_connectionString, CommandType.Text, commandText);
30???????? }
31???????? public static DataSet ExecuteDataset(string commandText, params SqlParameter[] cmdParameters)
32???????? {
33???????????? return Sqlhelper.ExecuteDataset(_connectionString, CommandType.Text, commandText, cmdParameters);
34???????? }
35???????? /// <summary>
36???????? /// 執行存儲過程
37???????? /// </summary>
38???????? /// <param name="procName"></param>
39???????? /// <param name="cmdParameters"></param>
40???????? /// <returns></returns>
41???????? public static DataSet ExecuteDatasetProc(string procName, params SqlParameter[] cmdParameters)
42???????? {
43???????????? return Sqlhelper.ExecuteDataset(_connectionString, CommandType.StoredProcedure, procName, cmdParameters);
44???????? }
45
46???????? // ExecuteReader
47???????? public static SqlDataReader ExecuteReader(string commandText)
48???????? {
49???????????? return Sqlhelper.ExecuteReader(_connectionString, CommandType.Text, commandText);
50???????? }
51???????? public static SqlDataReader ExecuteReader(string commandText, params SqlParameter[] cmdParameters)
52???????? {
53???????????? return Sqlhelper.ExecuteReader(_connectionString, CommandType.Text, commandText, cmdParameters);
54???????? }
55???????? /// <summary>
56???????? /// 執行存儲過程
57???????? /// </summary>
58???????? /// <param name="procName"></param>
59???????? /// <param name="cmdParameters"></param>
60???????? /// <returns></returns>
61???????? public static SqlDataReader ExecuteReaderProc(string procName, params SqlParameter[] cmdParameters)
62???????? {
63???????????? return Sqlhelper.ExecuteReader(_connectionString, CommandType.StoredProcedure, procName, cmdParameters);
64???????? }
65
66???????? // ExecuteScalar
67???????? public static object ExecuteScalar(string commandText)
68???????? {
69???????????? return Sqlhelper.ExecuteScalar(_connectionString, CommandType.Text, commandText);
70???????? }
71???????? public static object ExecuteScalar(string commandText, params SqlParameter[] cmdParameters)
72???????? {
73???????????? return Sqlhelper.ExecuteScalar(_connectionString, CommandType.Text, commandText, cmdParameters);
74???????? }
75???????? /// <summary>
76???????? /// 執行存儲過程
77???????? /// </summary>
78???????? /// <param name="procName"></param>
79???????? /// <param name="cmdParameters"></param>
80???????? /// <returns></returns>
81???????? public static object ExecuteScalarProc(string procName, params SqlParameter[] cmdParameters)
82???????? {
83???????????? return Sqlhelper.ExecuteScalar(_connectionString, CommandType.StoredProcedure, procName, cmdParameters);
84???????? }
85???? }
?

???

??????? Json操作類：JsonHelper包含如下方法?

?

代碼
?1? /*
?2??????????? 添加引用 System.Runtime.Serialization
?3??????????? 添加引用 System.ServiceModel.Web
?4????????? */
?5???? public static class JsonHelper
?6???? {
?7???????? /// <summary>
?8???????? /// 格式化成Json字符串
?9???????? /// </summary>
10???????? /// <param name="obj">需要格式化的對象</param>
11???????? /// <returns>Json字符串</returns>
12???????? public static string ToJson(this object obj)
13???????? {
14???????????? // 首先，當然是JSON序列化
15???????????? DataContractJsonSerializer serializer = new DataContractJsonSerializer(obj.GetType());
16
17???????????? // 定義一個stream用來存發序列化之后的內容
18???????????? Stream stream = new MemoryStream();
19???????????? serializer.WriteObject(stream, obj);
20
21???????????? // 從頭到尾將stream讀取成一個字符串形式的數據，并且返回
22???????????? stream.Position = 0;
23???????????? StreamReader streamReader = new StreamReader(stream);
24???????????? return streamReader.ReadToEnd();
25???????? }
26???????? //DataSetToJson
27???????? public static string ToJSON(DataSet dataSet, IDictionary<string, IDictionary<string, string>> details)
28???????? {
29???????????? string json = string.Empty;
30???????????? if (dataSet != null && dataSet.Tables.Count > 0 && dataSet.Tables[0].Rows.Count > 0)
31???????????? {
32???????????????? int i = 0, j = 0;
33???????????????? json += "[";
34???????????????? foreach (DataRow row in dataSet.Tables[0].Rows)
35???????????????? {
36???????????????????? if (i == 0) { } else { json += ","; }
37???????????????????? j = 0;
38???????????????????? json += "{";
39???????????????????? foreach (DataColumn column in dataSet.Tables[0].Columns)
40???????????????????? {
41???????????????????????? if (j == 0) { } else { json += ","; }
42
43???????????????????????? if (details != null && details.ContainsKey(column.ColumnName))
44???????????????????????? {
45???????????????????????????? IDictionary<string, string> dict = details[column.ColumnName] as IDictionary<string, string>;
46
47???????????????????????????? if (dict != null && dict.ContainsKey(row[column].ToString()))
48???????????????????????????????? json += string.Format("'{0}':'{1}'", column.ColumnName.ToLower(), dict[row[column].ToString()]);
49???????????????????????????? else
50???????????????????????????????? json += string.Format("'{0}':'{1}'", column.ColumnName.ToLower(), row[column].ToString());
51???????????????????????? }
52???????????????????????? else
53???????????????????????????? json += string.Format("'{0}':'{1}'", column.ColumnName.ToLower(), row[column].ToString());
54
55???????????????????????? j++;
56???????????????????? }
57???????????????????? json += "}";
58???????????????????? i++;
59???????????????? }
60???????????????? json += "]";
61???????????? }
62
63???????????? //json = "{/"result/":/"" + json + "/"}";
64???????????? return json;
65???????? }
66???? }
?

?

?????? 網頁Messagebox：

?

代碼
?1 public class MessageBox : System.Web.UI.Page
?2???? {
?3???????? public MessageBox()
?4???????? {
?5???????????? //
?6???????????? // TODO: 在此處添加構造函數邏輯
?7???????????? //
?8???????? }
?9???????? public static void Show(System.Web.UI.Page page, string msg)
10???????? {
11
12???????????? page.ClientScript.RegisterStartupScript(page.GetType(), "message", "<script language='javascript' defer>alert('" + msg.ToString() + "');</script>");
13
14???????? }
15
16???????? public static void ShowAndRedirect(System.Web.UI.Page page, string msg, string url)
17???????? {
18???????????? StringBuilder Builder = new StringBuilder();
19
20???????????? Builder.Append("<script language='javascript' defer>");
21???????????? Builder.AppendFormat("alert('{0}');", msg);
22???????????? Builder.AppendFormat("self.location.href='{0}'", url);
23???????????? Builder.Append("</script>");
24???????????? page.ClientScript.RegisterStartupScript(page.GetType(), "message", Builder.ToString());
25
26???????? }
27???????? /// <summary>
28???????? /// 控件點擊 消息確認提示框
29???????? /// </summary>
30???????? /// <param name="page">當前頁面指針，一般為this</param>
31???????? /// <param name="msg">提示信息</param>
32???????? public static void ShowConfirm(System.Web.UI.WebControls.WebControl Control, string msg)
33???????? {
34???????????? //Control.Attributes.Add("onClick","if (!window.confirm('"+msg+"')){return false;}");
35???????????? Control.Attributes.Add("onclick", "return confirm('" + msg + "');");
36???????? }
37???????? /// <summary>
38???????? /// 信息提示
39???????? /// </summary>
40???????? /// <param name="mess"></param>
41???????? //public virtual void Alert(string mess)
42???????? //{
43???????? //??? ClientScript.RegisterStartupScript(this.GetType(), "Alert", "<script language = javascript>alert(/"提示:" + mess.Replace("/r/n", "") + "/")</script>");
44???????? //}
45???? }
?

?

??????? EXCEL操作類，包含動態EXCEL導入導出方法：

?

代碼
? 1 public class ExcelM:Page
? 2???? {
? 3???????? /// <summary>
? 4???????? /// 導出Excel Datatable版本
? 5???????? /// </summary>
? 6???????? /// <param name="dt">導出的Datatable</param>
? 7???????? /// <param name="ExcelName">導出EXCEL的名稱 不需要要帶有擴展名_xls</param>
? 8???????? public static void ExportExcelDT(DataTable dt, string Title)
? 9???????? {
?10???????????? HttpResponse resp = System.Web.HttpContext.Current.Response;
?11???????????? string ExcelName = Title + DateTime.Now.ToString("yyyyMMddHHmmss");
?12???????????? resp.ContentEncoding = System.Text.Encoding.GetEncoding("UTF-8");
?13???????????? resp.AppendHeader("Content-Disposition", "attachment;filename=" + ExcelName + ".xls");
?14???????????? string colHeaders = "", ls_item = "";
?15???????????? DataRow[] myRow = dt.Select();//可以類似dt.Select("id>10")之形式達到數據篩選目的
?16???????????? int i = 0;
?17???????????? int cl = dt.Columns.Count;
?18???????????? //取得數據表各列標題，各標題之間以t分割，最后一個列標題后加回車符
?19???????????? resp.Write("<html><head><meta http-equiv=/"Content-Type/" content=/"text/html; charset=utf-8/" /></head><body><table border=1><tr style=/"background-color:#000088; color:White;border: Gray 1px solid;text-align:center/">");
?20???????????? for (i = 0; i < cl; i++)
?21???????????? {
?22???????????????? colHeaders += "<th>" + dt.Columns[i].Caption.ToString() + "</th>";
?23???????????? }
?24???????????? resp.Write(colHeaders + "</tr>");
?25???????????? //向HTTP輸出流中寫入取得的數據信息
?26???????????? //逐行處理數據
?27???????????? foreach (DataRow row in myRow)
?28???????????? {
?29???????????????? //當前行數據寫入HTTP輸出流，并且置空ls_item以便下行數據?
?30???????????????? ls_item = "<tr bgcolor=#ABCDC1>";
?31???????????????? for (i = 0; i < cl; i++)
?32???????????????? {
?33???????????????????? if (i == (cl - 1))//最后一列，加n
?34???????????????????? {
?35???????????????????????? ls_item += "<td>" + row[i].ToString() + "</td></tr>";
?36???????????????????? }
?37???????????????????? else
?38???????????????????? {
?39???????????????????????? ls_item += "<td>" + row[i].ToString() + "</td>";
?40???????????????????? }
?41???????????????? }
?42???????????????? resp.Write(ls_item);
?43???????????? }
?44???????????? resp.Write("</table></body></html>");
?45???????????? resp.End();
?46???????? }
?47???????? public enum eControl { GridView,Repeater}
?48???????? /// <summary>
?49???????? /// 控件導出EXCEL
?50???????? /// </summary>
?51???????? /// <param name="dataControl">控件名稱</param>
?52???????? /// <param name="dt">要導出的Datatable數據</param>
?53???????? /// <param name="title">名稱</param>
?54???????? /// <param name="Control">控件類型 GridView or Repeater</param>
?55???????? public static void ExportExcelDataControl(object dataControl, ref DataTable dt, string title, eControl Control)
?56???????? {
?57???????????? HttpResponse Response = System.Web.HttpContext.Current.Response;
?58???????????? StringWriter objStringWriter = new StringWriter();
?59???????????? HtmlTextWriter objHtmlTextWriter = new HtmlTextWriter(objStringWriter);
?60
?61???????????? if (Control == eControl.GridView)
?62???????????? {
?63???????????????? GridView gvList = (GridView)dataControl;
?64???????????????? gvList.DataSource = dt;
?65???????????????? gvList.DataBind();
?66???????????????? gvList.RenderControl(objHtmlTextWriter);
?67???????????? }
?68???????????? if (Control == eControl.Repeater)
?69???????????? {
?70???????????????? Repeater rpList = (Repeater)dataControl;
?71???????????????? rpList.DataSource = dt;
?72???????????????? rpList.DataBind();
?73???????????????? rpList.RenderControl(objHtmlTextWriter);
?74???????????? }
?75???????????? string style = @"<html><head><meta http-equiv=""Content-Type"" content=""text/html; charset=utf-8"" /><style> .text { mso-number-format:/@; } </style></head><body>";
?76???????????? string filename = title + DateTime.Now.ToString("yyyyMMddHHmmss");
?77???????????? Response.Clear();
?78???????????? Response.Buffer = true;
?79???????????? Response.AppendHeader("Content-Disposition", "attachment;filename=" + filename + ".xls");
?80???????????? Response.ContentType = "application/ms-excel";
?81???????????? Response.Write(style);
?82???????????? Response.Write(objStringWriter.ToString());
?83???????????? Response.Write("</body></html>");
?84???????????? Response.End();
?85???????? }
?86???????? /// <summary>
?87???????? /// Gridview重載函數
?88???????? /// </summary>
?89???????? /// <param name="control"></param>
?90???????? public override void VerifyRenderingInServerForm(System.Web.UI.Control control) { }
?91???????? private static readonly string _connectionString = ConfigurationManager.ConnectionStrings["connectionString"].ToString();
?92???????? /// <summary>
?93???????? /// EXCEL導入到數據庫指定表 需配置XML文件
?94???????? /// tableName 即將導入的表名
?95???????? /// OutColumn EXCEL中對應的列名 默認第一行為列名
?96???????? /// TableColumn 數據庫表中對應的列名
?97???????? /// CType 導入列的數據類型 以數據庫中為準
?98???????? /// Clong 導入列的長度
?99???????? /// </summary>
100???????? /// <param name="filePath">上傳EXCEL的路徑</param>
101???????? /// <param name="erroMsg">錯誤信息</param>
102???????? public static void ExcelToTable(string filePath,out string erroMsg)
103???????? {
104???????????? try
105???????????? {
106???????????????? erroMsg = "";
107???????????????? DataTable dtExcel = GetExcelFileData(filePath);
108???????????????? //過濾dtExcel 中的空行
109???????????????? for (int i = 0; i < dtExcel.Rows.Count; i++)
110???????????????? {
111???????????????????? DataRow dr=dtExcel.Rows[i];
112???????????????????? if (dr.IsNull(0) && dr.IsNull(dtExcel.Columns.Count-1))
113???????????????????? {
114???????????????????????? bool isd = true;
115???????????????????????? for (int j = 1; j < dtExcel.Columns.Count - 1; j++)
116???????????????????????? {
117???????????????????????????? if (dr.IsNull(j))
118???????????????????????????????? continue;
119???????????????????????????? else
120???????????????????????????? {
121???????????????????????????????? isd = false;
122???????????????????????????????? break;
123???????????????????????????? }
124???????????????????????? }
125???????????????????????? if (isd)
126???????????????????????????? dtExcel.Rows[i].Delete();
127???????????????????? }
128???????????????? }
129???????????????? List<string> listC = new List<string>();
130???????????????? List<string> tableC = new List<string>();????
131???????????????? Dictionary<string,string> Det=new Dictionary<string,string>();
132???????????????? HttpServerUtility server = System.Web.HttpContext.Current.Server;
133???????????????? //此處XML 為網站根目錄下的XML
134???????????????? string path = server.MapPath("ImportExcel.xml");
135???????????????? XElement xmldoc = XElement.Load(path);
136???????????????? string tableName = xmldoc.FirstAttribute.Value;
137???????????????? if (UtilityClass.IsNullOrEmpty(tableName))
138???????????????? {
139???????????????????? erroMsg = "tableName不能為空！";
140???????????????????? return;
141???????????????? }
142???????????????? var qOutColumn = from q in xmldoc.Descendants("OutColumn") select q;
143???????????????? foreach (var q in qOutColumn)
144???????????????? {
145???????????????????? listC.Add(q.Value.Trim());
146???????????????? }
147???????????????? var qTableColumn = from q in xmldoc.Descendants("TableColumn") select q;
148???????????????? foreach (var q in qTableColumn)
149???????????????? {
150???????????????????? tableC.Add(q.Value.Trim());
151???????????????? }
152???????????????? if (listC.Count != tableC.Count)
153???????????????? {
154???????????????????? erroMsg = "OutColumn同TableColumn不是一一對應！";
155???????????????????? return;
156???????????????? }
157???????????????? for(int i = 0; i < listC.Count; i++)
158???????????????? {
159???????????????????? if (listC[i] != dtExcel.Columns[i].ColumnName.Trim())
160???????????????????? {
161???????????????????????? erroMsg = "OutColumn[" + listC[i] + "]與實際導入列名[" + dtExcel.Columns[i].ColumnName.Trim() + "]不一致";
162???????????????????????? return;
163???????????????????? }
164???????????????? }
165???????????????? for (int i = 0; i < listC.Count; i++)
166???????????????? {
167???????????????????? Det.Add(listC[i],tableC[i]);
168???????????????? }
169
170???????????????? using (SqlBulkCopy bulkCopy = new SqlBulkCopy(_connectionString))
171???????????????? {
172???????????????????? for (int i = 0; i < listC.Count; i++)
173???????????????????? {
174???????????????????????? bulkCopy.ColumnMappings.Add(new SqlBulkCopyColumnMapping(listC[i], Det[listC[i]]));
175???????????????????? }
176???????????????????? bulkCopy.DestinationTableName = tableName;
177???????????????????? bulkCopy.WriteToServer(dtExcel);
178???????????????? }
179???????????? }
180???????????? catch (Exception ex)
181???????????? {
182???????????????? throw ex;
183???????????? }
184
185???????? }
186???????? /// <summary>
187???????? /// 導入檢測EXCEL之后的Datatable
188???????? /// EXCEL導入到數據庫指定表 需配置XML文件
189???????? /// tableName 即將導入的表名
190???????? /// OutColumn EXCEL中對應的列名 默認第一行為列名
191???????? /// TableColumn 數據庫表中對應的列名
192???????? /// CType 導入列的數據類型 以數據庫中為準
193???????? /// Clong 導入列的長度
194???????? /// </summary>
195???????? /// <param name="dtExcel">傳入Datatable</param>
196???????? /// <param name="erroMsg">錯誤信息</param>
197???????? /// <param name="isGLNullColumn">是否需要過濾空行</param>
198???????? public static void ExcelToTable(DataTable dtExcel, out string erroMsg,bool isGLNullColumn)
199???????? {
200???????????? try
201???????????? {
202???????????????? erroMsg = "";
203???????????????? //過濾dtExcel 中的空行
204???????????????? if (isGLNullColumn)
205???????????????? {
206???????????????????? for (int i = 0; i < dtExcel.Rows.Count; i++)
207???????????????????? {
208???????????????????????? DataRow dr = dtExcel.Rows[i];
209???????????????????????? if (dr.IsNull(0) && dr.IsNull(dtExcel.Columns.Count - 1))
210???????????????????????? {
211???????????????????????????? bool isd = true;
212???????????????????????????? for (int j = 1; j < dtExcel.Columns.Count - 1; j++)
213???????????????????????????? {
214???????????????????????????????? if (dr.IsNull(j))
215???????????????????????????????????? continue;
216???????????????????????????????? else
217???????????????????????????????? {
218???????????????????????????????????? isd = false;
219???????????????????????????????????? break;
220???????????????????????????????? }
221???????????????????????????? }
222???????????????????????????? if (isd)
223???????????????????????????????? dtExcel.Rows[i].Delete();
224???????????????????????? }
225???????????????????? }
226???????????????? }
227???????????????? List<string> listC = new List<string>();
228???????????????? List<string> tableC = new List<string>();
229???????????????? Dictionary<string, string> Det = new Dictionary<string, string>();
230???????????????? HttpServerUtility server = System.Web.HttpContext.Current.Server;
231???????????????? //此處XML 為網站根目錄下的XML
232???????????????? string path = server.MapPath("ImportExcel.xml");
233???????????????? XElement xmldoc = XElement.Load(path);
234???????????????? string tableName = xmldoc.FirstAttribute.Value;
235???????????????? if (UtilityClass.IsNullOrEmpty(tableName))
236???????????????? {
237???????????????????? erroMsg = "tableName不能為空！";
238???????????????????? return;
239???????????????? }
240???????????????? var qOutColumn = from q in xmldoc.Descendants("OutColumn") select q;
241???????????????? foreach (var q in qOutColumn)
242???????????????? {
243???????????????????? listC.Add(q.Value.Trim());
244???????????????? }
245???????????????? var qTableColumn = from q in xmldoc.Descendants("TableColumn") select q;
246???????????????? foreach (var q in qTableColumn)
247???????????????? {
248???????????????????? tableC.Add(q.Value.Trim());
249???????????????? }
250???????????????? if (listC.Count != tableC.Count)
251???????????????? {
252???????????????????? erroMsg = "OutColumn同TableColumn不是一一對應！";
253???????????????????? return;
254???????????????? }
255???????????????? for (int i = 0; i < listC.Count; i++)
256???????????????? {
257???????????????????? if (listC[i] != dtExcel.Columns[i].ColumnName.Trim())
258???????????????????? {
259???????????????????????? erroMsg = "OutColumn與實際導入列名不一致";
260???????????????????????? return;
261???????????????????? }
262???????????????? }
263???????????????? for (int i = 0; i < listC.Count; i++)
264???????????????? {
265???????????????????? Det.Add(listC[i], tableC[i]);
266???????????????? }
267
268???????????????? using (SqlBulkCopy bulkCopy = new SqlBulkCopy(_connectionString))
269???????????????? {
270???????????????????? for (int i = 0; i < listC.Count; i++)
271???????????????????? {
272???????????????????????? bulkCopy.ColumnMappings.Add(new SqlBulkCopyColumnMapping(listC[i], Det[listC[i]]));
273???????????????????? }
274???????????????????? bulkCopy.DestinationTableName = tableName;
275???????????????????? bulkCopy.WriteToServer(dtExcel);
276???????????????? }
277???????????? }
278???????????? catch (Exception ex)
279???????????? {
280???????????????? throw ex;
281???????????? }
282
283???????? }
284???????? /// <summary>
285???????? /// 讀取Excel
286???????? /// </summary>
287???????? /// <param name="filePath">EXCEL 路徑</param>
288???????? /// <returns></returns>
289???????? public static DataTable GetExcelFileData(string filePath)
290???????? {
291???????????? OleDbDataAdapter oleAdp = new OleDbDataAdapter();
292???????????? OleDbConnection oleCon = new OleDbConnection();
293???????????? string strCon = "Provider=Microsoft.Jet.oleDb.4.0;data source=" + filePath + ";Extended Properties='Excel 8.0;HDR=Yes;IMEX=1'";
294???????????? try
295???????????? {
296???????????????? DataTable dt = new DataTable();
297???????????????? oleCon.ConnectionString = strCon;
298???????????????? oleCon.Open();
299???????????????? DataTable table = oleCon.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, null);
300???????????????? string sheetName = table.Rows[0][2].ToString();
301???????????????? string sqlStr = "Select * From [" + sheetName + "]";
302???????????????? oleAdp = new OleDbDataAdapter(sqlStr, oleCon);
303???????????????? oleAdp.Fill(dt);
304???????????????? oleCon.Close();
305???????????????? return dt;
306???????????? }
307???????????? catch (Exception ex)
308???????????? {
309???????????????? throw ex;
310???????????? }
311???????????? finally
312???????????? {
313???????????????? oleAdp = null;
314???????????????? oleCon = null;
315???????????? }
316???????? }
317???? }
?

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