Asp.Net(C#)使用oleDbConnection 連接Excel
"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=D:/MyExcel.xls;Extended Properties= "Excel 8.0;HDR=Yes;IMEX=1"
針對(duì)如果上連接字符串 對(duì)相關(guān)屬性進(jìn)行說明如下："HDR=Yes;”指示第一行中包含列名，而不是數(shù)據(jù)，"IMEX=1;”通知驅(qū)動(dòng)程序始終將“互混”數(shù)據(jù)列作為文本讀取。Excel 8.0 針對(duì)Excel2000及以上版本，Excel5.0 針對(duì)Excel97。
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using System.Data.OleDb;using System.Data;String sConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;" +"Data Source=c:/test.xls;" +"Extended Properties=Excel 8.0;";OleDbConnection objConn = new OleDbConnection(sConnectionString);objConn.Open();OleDbCommand objCmdSelect =new OleDbCommand("SELECT * FROM [sheet1]", objConn);OleDbDataAdapter objAdapter1 = new OleDbDataAdapter();objAdapter1.SelectCommand = objCmdSelect;DataSet objDataset1 = new DataSet();//將Excel中數(shù)據(jù)填充到數(shù)據(jù)集objAdapter1.Fill(objDataset1, "XLData");objConn.Close(); |
從上面可以看出，使用ADO.NET可將Excel當(dāng)作普通數(shù)據(jù)庫(kù)，使用SQL語句來操作。
通過ADO.NET獲取Excel文件的各Sheet名稱，可使用元數(shù)據(jù)方式：
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String sConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;" +"Data Source=c:/test.xls;" +"Extended Properties=Excel 8.0;";OleDbConnection cn = new OleDbConnection(sConnectionString);cn.Open();DataTable tb = cn.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, null);foreach (DataRow row in tb.Rows){//遍歷彈出各Sheet的名稱MessageBox.Show(row["TABLE_NAME"]);} |
關(guān)于使用ADO.NET創(chuàng)建并寫入Excel文件與普通數(shù)據(jù)庫(kù)操作極為類似，參見以下代碼：
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String sConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;" +"Data Source=c:/test.xls;" +"Extended Properties=Excel 8.0;";OleDbConnection cn = new OleDbConnection(sConnectionString);string sqlCreate = "CREATE TABLE TestSheet ([ID] INTEGER,[Username] VarChar,[UserPwd] VarChar)";OleDbCommand cmd = new OleDbCommand(sqlCreate, cn);//創(chuàng)建Excel文件：C:/test.xlscn.Open();//創(chuàng)建TestSheet工作表cmd.ExecuteNonQuery();//添加數(shù)據(jù)cmd.CommandText = "INSERT INTO TestSheet VALUES(1,'elmer','password')";cmd.ExecuteNonQuery();//關(guān)閉連接cn.Close(); |
以上就是本文的全部?jī)?nèi)容，希望對(duì)大家的學(xué)習(xí)有所幫助，也希望大家多多支持服務(wù)器之家。
原文鏈接：http://www.cnsendblog.com/?p=84
