When using System.Data.SqlClient.SqlDataAdapter, do the previous connection characters need to be closed manually?

宇智波佐助

When using System.Data.SqlClient.SqlDataAdapter, do the previous connection characters need to be closed manually?

wallace228

First of all, it is not called a connection character, it is a connection...
Then if you want to do data operations, the connection must be open

darkstar4455

It can be closed, but System.Data.SqlClient.SqlDataAdapter can no longer use database operations after closing, unless the connection is opened again before use.