The task of the teacher let us learn to video, do a cashier system, and then some, need we play, I here out of the wrong there is a great god can know how to change it

CodePudding user response:

Sqlcommand CMD=new sqlcommand ();
CMD. Connenction=conn;
Cmd.com mandtext="select 123"

CodePudding user response:

Upstairs is the solution, the DataSet is empty

CodePudding user response:

Do you have in this open, isn't it a bit late?

CodePudding user response:

conn.Open();
SqlDataAdapter dapter=new SqlDataAdapter (SQL, conn);
The DataSet DataSet=new DataSet ();
Dapter. The Fill (dataSet);

CodePudding user response:

It has no value in your sb,