一个数据库有几个内模式 ASP.NET的ACCESS数据库操作类

ASP.NET的ACCESS数据库操作类  

　　//网上很多都是操作SQL SER 的 整理了一下 不是很完善 但不影响使用 呵呵…… //private string datapatch = ConfigurationSettings AppSettings[ acessconn ];//数据库地址 private string datapatch = db/global asa ;//数据库地址 /// /// 取得dataset // /// 查询语句 /// public DataSet GetDataSet(string Commandtext) { string strConnection = Provider=Microsoft Jet OLEDB ; + Data Source= + Server MapPath(datapatch); string strCommandText = Commandtext; OleDbConnection myConnection = new OleDbConnection(strConnection); myConnection Open(); OleDbDataAdapter myAdpater = new OleDbDataAdapter(strCommandText myConnection); OleDbCommandBuilder myBuilder = new OleDbCommandBuilder(myAdpater); DataSet myDataset = new DataSet(); myAdpater Fill(myDataset); myConnection Close(); return myDataset; } /// /// 取得表 /// /// 查询语句 /// public DataTable GetDataTable(string Commandtext) { string strConnection = Provider=Microsoft Jet OLEDB ; + Data Source= + Server MapPath(datapatch); string strCommandText =Commandtext; OleDbConnection myConnection = new OleDbConnection(strConnection); myConnection Open(); OleDbDataAdapter myAdpater = new OleDbDataAdapter(strCommandText myConnection); OleDbCommandBuilder myBuilder = new OleDbCommandBuilder(myAdpater); DataSet myDataset = new DataSet(); myAdpater Fill(myDataset); DataTable mytable = myDataset Tables[ ]; myConnection Close(); return mytable; } /// /// 取得某行的某列的值 /// /// 列的名称 /// 所属表名 /// 表的主键 /// 列所属的主键值 /// public string GetDataColum(string strColumnName string strTableName string strColumnkey string strColumnValue) { string strConnection = Provider=Microsoft Jet OLEDB ; + Data Source= + Server MapPath(datapatch); string strCommandText = select +strColumnName+ +strColumnkey+ from +strTableName; OleDbConnection myConnection = new OleDbConnection(strConnection); myConnection Open();

　　OleDbDataAdapter myAdpater = new OleDbDataAdapter(strCommandText myConnection); OleDbCommandBuilder myBuilder = new OleDbCommandBuilder(myAdpater); DataSet myDataset = new DataSet(); myAdpater MissingSchemaAction = MissingSchemaAction AddWithKey; myAdpater Fill(myDataset); myConnection Close(); DataTable mytable = myDataset Tables[ ]; DataRow mydr = mytable Rows Find(strColumnValue); string mydc = mydr[strColumnName] ToString(); return mydc; } /// /// 更新某个字段 /// /// 要更新字段名称 /// 要更新的值 /// 所属表名称 /// 表中KEY /// 表中KEY的值 public void UpdateColum(string strColumnName string strValue string strTableName string strColumnKey string strColumnValue) { string strConnection = Provider=Microsoft Jet OLEDB ; + Data Source= + Server MapPath(datapatch); string strCommandText = select +strColumnKey+ +strColumnName+ from +strTableName; OleDbConnection myConnection = new OleDbConnection(strConnection); myConnection Open(); OleDbDataAdapter myAdpater = new OleDbDataAdapter(strCommandText myConnection); OleDbCommandBuilder myBuilder = new OleDbCommandBuilder(myAdpater); DataSet myDataset = new DataSet(); myAdpater MissingSchemaAction = MissingSchemaAction AddWithKey; myAdpater Fill(myDataset strTableName); DataRow drFindRow = myDataset Tables[strTableName] Rows Find(strColumnValue); drFindRow[strColumnName] = strValue;

　　myAdpater Update(myDataset strTableName); myConnection Close(); }

　　/// /// 添加行 /// /// 此行中的字段集合 /// 此行中的字段集合的对应值 /// 所属表名称 /// 表中主键 public void AddRow(string[]columns string[]columnvalue string strTableName string strColumnKey) { string strConnection = Provider=Microsoft Jet OLEDB ; + Data Source= + Server MapPath(datapatch); string strColumnCount = ; foreach(string thiscolunmname in columns) { strColumnCount = thiscolunmname+ +strColumnCount; } string strCommandText = select +strColumnCount+strColumnKey+ from +strTableName; OleDbConnection myConnection = new OleDbConnection(strConnection); myConnection Open(); OleDbDataAdapter myAdpater = new OleDbDataAdapter(strCommandText myConnection); OleDbCommandBuilder myBuilder = new OleDbCommandBuilder(myAdpater); DataSet myDataset = new DataSet(); myAdpater Fill(myDataset strTableName); DataRow newrow = myDataset Tables[strTableName] NewRow(); for(int i= ;i { string strColumnName = columns[i].ToString(); newrow[strColumnName] = columnvalue[i].ToString(); } myDataset.Tables[strTableName].Rows.Add(newrow); myAdpater.Update(myDataset,strTableName); myConnection.Close(); } /// /// 更新数据行 /// /// 要更新的列集合 /// 要更新的列集合的对应值 /// 所属表名称 /// 表主键 /// 行所属的ＩＤ public void updateRow(string[]columns,string[]columnvalue,string strTableName,string strColumnKey,string strColumnValue) { string strConnection = "Provider=Microsoft.Jet.OLEDB.4.0; " + "Data Source=" + Server.MapPath(datapatch); string strColumnCount = ""; foreach(string thiscolunmname in columns) { strColumnCount = thiscolunmname+","+strColumnCount; }