Yes. You’ll want to make sure that you call myCommand.Parameters.Clear between each call in order to dump the parameters, but there’s nothing stopping you from reusing the object. (I don’t use C# often, so this may have an error or two in the text)
myConStr = ConfigurationManager.ConnectionStrings["MyConnString"].ConnectionString;
myConn = new SqlConnection(myConStr);
myConn.Open();
myCommand = new System.Data.SqlClient.SqlCommand("team5UserCurrentBooks3", myConn);
myCommand.CommandType = CommandType.StoredProcedure;
myCommand.Parameters.AddWithValue("@book_id", bookID);
myCommand.Parameters.AddWithValue("@user_id", userID);
myCommand.ExecuteNonQuery();
myCommand.Parameters.Clear();
myCommand.CommandText= "NewStoredProcedureName";
myCommand.CommandType = CommandType.StoredProcedure;
myCommand.Parameters.AddWithValue("@foo_id", fooId);
myCommand.Parameters.AddWithValue("@bar_id", barId);
mycommand.ExecuteNonQuery();
myCommand.Parameters.Clear();
myCommand.CommandText = " SELECT * FROM table1 WHERE ID = @TID;"
myCommand.CommandType = CommandType.Text;
myCommand.Parameters.AddWithValue("@tid", tId);
SqlReader rdr;
rdr = myCommand.ExecuteReader();