使用OleDbDataAdapter时OleDbConnection不需要Open()和Close()?
public DataSet SelectOleDbSrvRows(DataSet dataset,string connection,string query)
{
OleDbConnection conn = new OleDbConnection(connection);
OleDbDataAdapter adapter = new OleDbDataAdapter();
adapter.SelectCommand = new OleDbCommand(query, conn);
adapter.Fill(dataset);
return dataset;
}
//使用OleDbDataAdapter时OleDbConnection不需要Open()和Close()? 为什么呢？
//那Open()和Close()是不是被包含在adapter.Fill(dataset)步骤里面了？
[解决办法]
.net自动回收机制
[解决办法]
you 'd better Deal with this problem yourself:Add keywords: open() and Close();
through it can auto complete
