C # datagridview 同步更新到數據庫

datagridview 表功能強大，在表格上改動后，可以直接更新至數據庫。

 

 

   private void FrmRegion_Load(object sender, EventArgs e)
        {
            sql = " select * from region order by region_id "; //order by region_id
            dt = DBHelper.ExecuteQuery(sql);
            dataGridView1.DataSource = dt;
        }

        private void btnSave_Click(object sender, EventArgs e)
        {
            DBHelper.UpdateDataTable(dt, "region");
        }

附：DBHelper.cs中的UpdateDataTable（）函數代碼

public static int UpdateDataTable(DataTable ds, string strTblName)
        {
            try
            {
                //創建一個用於填充DataSet的對象
                 cmd = new SqlCommand("SELECT * FROM " + strTblName + " ", conn);
                SqlDataAdapter myAdapter = new SqlDataAdapter();
                //獲取SQL語句，用於在數據庫中選擇記錄
                myAdapter.SelectCommand = cmd;

                //自動生成單表命令，用於將對DataSet所做的更改與數據庫更改相對應
                SqlCommandBuilder myCommandBuilder = new SqlCommandBuilder(myAdapter);
                return myAdapter.Update(ds);
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message + "\n 更新失敗，錯誤表名為：" + strTblName);
                return 0;
            }
            finally
            {
                conn.Close();

            }
            return 0;

        }