ASP.NET操作Access数据库

//网上很多都是操作SQLSER的，整理了一下，不是很完善，但不影响使用，呵呵……
//privatestringdatapatch=ConfigurationSettings.AppSettings["acessconn"];//数据库地址
privatestringdatapatch="db/global.asa";//数据库地址
///
///取得dataset
//
///查询语句
///
publicDataSetGetDataSet(stringCommandtext)
{
stringstrConnection="Provider=Microsoft.Jet.OLEDB.4.0;"+
"DataSource="+Server.MapPath(datapatch);
stringstrCommandText=Commandtext;
OleDbConnectionmyConnection=newOleDbConnection(strConnection);
myConnection.Open();
OleDbDataAdaptermyAdpater=newOleDbDataAdapter(strCommandText,myConnection);
OleDbCommandBuildermyBuilder=newOleDbCommandBuilder(myAdpater);
DataSetmyDataset=newDataSet();
myAdpater.Fill(myDataset);
myConnection.Close();
returnmyDataset;
}
///
///取得表
///
///查询语句
///
publicDataTableGetDataTable(stringCommandtext)
{
stringstrConnection="Provider=Microsoft.Jet.OLEDB.4.0;"+
"DataSource="+Server.MapPath(datapatch);
stringstrCommandText=Commandtext;
OleDbConnectionmyConnection=newOleDbConnection(strConnection);
myConnection.Open();
OleDbDataAdaptermyAdpater=newOleDbDataAdapter(strCommandText,myConnection);
OleDbCommandBuildermyBuilder=newOleDbCommandBuilder(myAdpater);
DataSetmyDataset=newDataSet();
myAdpater.Fill(myDataset);
DataTablemytable=myDataset.Tables[0];
myConnection.Close();
returnmytable;
}
///
///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
///
publicstringGetDataColum(stringstrColumnName,stringstrTableName,stringstrColumnkey,stringstrColumnValue)
{
stringstrConnection="Provider=Microsoft.Jet.OLEDB.4.0;"+
"DataSource="+Server.MapPath(datapatch);
stringstrCommandText="select"+strColumnName+","+strColumnkey+"from"+strTableName;
OleDbConnectionmyConnection=newOleDbConnection(strConnection);
myConnection.Open();
OleDbDataAdaptermyAdpater=newOleDbDataAdapter(strCommandText,myConnection);
OleDbCommandBuildermyBuilder=newOleDbCommandBuilder(myAdpater);
DataSetmyDataset=newDataSet();
myAdpater.MissingSchemaAction=MissingSchemaAction.AddWithKey;
myAdpater.Fill(myDataset);
myConnection.Close();
DataTablemytable=myDataset.Tables[0];
DataRowmydr=mytable.Rows.Find(strColumnValue);
stringmydc=mydr[strColumnName].ToString();
returnmydc;
}
///
///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
publicvoidUpdateColum(stringstrColumnName,stringstrValue,stringstrTableName,stringstrColumnKey,stringstrColumnValue)
{
stringstrConnection="Provider=Microsoft.Jet.OLEDB.4.0;"+
"DataSource="+Server.MapPath(datapatch);
stringstrCommandText="select"+strColumnKey+","+strColumnName+"from"+strTableName;
OleDbConnectionmyConnection=newOleDbConnection(strConnection);
myConnection.Open();
OleDbDataAdaptermyAdpater=newOleDbDataAdapter(strCommandText,myConnection);
OleDbCommandBuildermyBuilder=newOleDbCommandBuilder(myAdpater);
DataSetmyDataset=newDataSet();
myAdpater.MissingSchemaAction=MissingSchemaAction.AddWithKey;
myAdpater.Fill(myDataset,strTableName);
DataRowdrFindRow=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
publicvoidAddRow(string[]columns,string[]columnvalue,stringstrTableName,stringstrColumnKey)
{
stringstrConnection="Provider=Microsoft.Jet.OLEDB.4.0;"+
"DataSource="+Server.MapPath(datapatch);
stringstrColumnCount="";
foreach(stringthiscolunmnameincolumns)
{
strColumnCount=thiscolunmname+","+strColumnCount;
}
stringstrCommandText="select"+strColumnCount+strColumnKey+"from"+strTableName;
OleDbConnectionmyConnection=newOleDbConnection(strConnection);
myConnection.Open();
OleDbDataAdaptermyAdpater=newOleDbDataAdapter(strCommandText,myConnection);
OleDbCommandBuildermyBuilder=newOleDbCommandBuilder(myAdpater);
DataSetmyDataset=newDataSet();
myAdpater.Fill(myDataset,strTableName);
DataRownewrow=myDataset.Tables[strTableName].NewRow();
for(inti=0;i{
stringstrColumnName=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
publicvoidupdateRow(string[]columns,string[]columnvalue,stringstrTableName,stringstrColumnKey,stringstrColumnValue)
{
stringstrConnection="Provider=Microsoft.Jet.OLEDB.4.0;"+
"DataSource="+Server.MapPath(datapatch);
stringstrColumnCount="";
foreach(stringthiscolunmnameincolumns)
{
strColumnCount=thiscolunmname+","+strColumnCount;
}
stringstrCommandText="select"+strColumnCount+strColumnKey+"from"+strTableName;
OleDbConnectionmyConnection=newOleDbConnection(strConnection);
myConnection.Open();
OleDbDataAdaptermyAdpater=newOleDbDataAdapter(strCommandText,myConnection);
OleDbCommandBuildermyBuilder=newOleDbCommandBuilder(myAdpater);
DataSetmyDataset=newDataSet();
myAdpater.MissingSchemaAction=MissingSchemaAction.AddWithKey;
myAdpater.Fill(myDataset,strTableName);
DataRowupdaterow=myDataset.Tables[strTableName].Rows.Find(strColumnValue);
for(inti=0;i{
stringstrColumnName=columns[i].ToString();
updaterow[strColumnName]=columnvalue[i].ToString();
}
myAdpater.Update(myDataset,strTableName);
myConnection.Close();
}
　
///
///删除行
///
///所属表
///主键字段名
///此行主键值
publicvoiddelectRow(stringstrTableName,stringstrColumnKey,stringstrColumnValue)
{
stringstrConnection="Provider=Microsoft.Jet.OLEDB.4.0;"+
"DataSource="+Server.MapPath(datapatch);
stringstrCommandText="select"+strColumnKey+"from"+strTableName;
OleDbConnectionmyConnection=newOleDbConnection(strConnection);
myConnection.Open();
OleDbDataAdaptermyAdpater=newOleDbDataAdapter(strCommandText,myConnection);
OleDbCommandBuildermyBuilder=newOleDbCommandBuilder(myAdpater);
DataSetmyDataset=newDataSet();
myAdpater.MissingSchemaAction=MissingSchemaAction.AddWithKey;
myAdpater.Fill(myDataset,strTableName);
DataRownewrow=myDataset.Tables[strTableName].Rows.Find(strColumnValue);
newrow.Delete();
myAdpater.Update(myDataset,strTableName);
myConnection.Close();
}