private void Form1_Load(object sender, EventArgs e){SqlConnection con = new SqlConnection(@"SERVER=localhost;UID=sa;DATABASE=GG;MultipleActiveResultSets =true;PWD=123456");con.Open();創建事務并賦值SqlTransaction tran= con.BeginTransaction();//創建SqlCommand實例SqlCommand _delete=con.CreateCommand();SqlCommand _insert = con.CreateCommand();SqlCommand _select = con.CreateCommand();SqlCommand _update = con.CreateCommand();//通過同一個SqlConnection創建的SqlCommand，每一個都需要事務，否則報錯_delete.Transaction = tran;_insert.Transaction = tran;_select.Transaction = tran;_update.Transaction = tran;try{_delete.CommandText = "delete from t_user where no=11 or no=12";_delete.ExecuteNonQuery();_insert.CommandText = "insert t_user (no,age,name) values(11,111,1111)";_insert.ExecuteNonQuery();在SQL語句未執行完提交，后面的語句報錯不會回滾tran.Commit();_update.CommandText = "update t_user set name=12,no=12,age=12 wh2ere no=11";_update.ExecuteNonQuery();_select.CommandText = "select * from t_user";SqlDataAdapter adt = new SqlDataAdapter(_select);DataTable dt = new DataTable();adt.Fill(dt);dataGridView1.DataSource = dt;//提交事務（在與本事務相關sql語句執行完之后提交）tran.Commit();}catch (Exception ex){//從掛起狀態回滾事務，不需要寫tran.Rollback();，報錯會自動運行//tran.Rollback();MessageBox.Show(ex.Message.ToString(), this.Text, MessageBoxButtons.OK, MessageBoxIcon.Question);}finally{con.Close();}}

　　

轉載于:https://www.cnblogs.com/lhlong/p/4838653.html

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