asp.net OleDbCommand 的用法ASP。网下OleDbCommand的使用代码OleDbConnectioncon=newOleDbConnection( Provider=Microsoft .杰特。OLEDB.4.0data source=data。MDB’)；con . Open()；oledbcommandc=newOleDbCommand( selectnamefromuswhere id=2 ，con)；文本框1。Text=dc .ExecuteScalar().ToString()；OleDbConnectioncon=newOleDbConnection( Provider=Microsoft .杰特。OLEDB.4.0data source=data。MDB’)；con . Open()；oledbcommandc=newOleDbCommand( insertintous(name)values(11)，con)；华盛顿ExecuteNonQuery()；con . Close()；stringus=textBox2 .文本；stringpa=textBox1 .文本；OleDbConnectioncon=newOleDbConnection( Provider=Microsoft .杰特。OLEDB.4.0data source=data。MDB’)；OleDbCommandoldC=newOleDbCommand( insertintousers(username，userpassword)值(@username，@userpassword)，con)；旧的.参数。添加( @username ，us)；旧的.参数。Add(@userpassword ，pa)；con . Open()；旧的.ExecuteNonQuery()；con . Close()；消息框.Show(Registersuccessful！);这个dispose()；