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.4.0; " +
"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.4.0; " +
"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[0];

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.4.0; " +
"Data Source=" + Server.MapPath(datapatch);
string strCommandText = "select "+strColumnName+","+strColumnkey+" from "+strTableName;

OleDbConnection myConnection = new OleDbConnection(strConnection);
myConnection.Open();