利用DataSet对数据库进行修改

class Program

{

static void Main(string[] args)

{

SqlConnection thisConnection = new SqlConnection(

@"Data Source=.\SQLEXPRESS;" +

@"AttachDbFilename='C:\SQL Server 2000 Sample Databases\NORTHWND.MDF';"

+

@"Integrated Security=true;Connect Timeout=30;User Instance=true");

SqlDataAdapter thisAdapter = new SqlDataAdapter(

"select CustomerID, CompanyName from Customers", thisConnection);

//将SqlCommandBuilder与thisAdapter关联，这样就不用自己写sql的更新语句了

SqlCommandBuilder thisBuilder = new SqlCommandBuilder(thisAdapter);

//注:: DataSet、DataTable、DataRow、DataColumn是表中的数据在内存中的表示。为了更新数据库，需要调用Update()方法

DataSet thisDataSet = new DataSet();

thisAdapter.Fill(thisDataSet, "Customers");

Console.WriteLine("Name before change:{0}", thisDataSet.Tables["Customers"].Rows[9]["CompanyName"]);

thisDataSet.Tables["Customers"].Rows[9]["CompanyName"] = "Acme, Inc.";

thisAdapter.Update(thisDataSet, "Customers");

Console.WriteLine("name after change:{0}", thisDataSet.Tables["Customers"].Rows[9]["CompanyName"]);

thisConnection.Close();

Console.Write("Program finished, press Enter/Return to continue:");

Console.ReadLine();

}

}