ADO.NET 2.0 Dataset和Datatable 新功能新特性

DataSet ds = new DataSet();

SqlDataAdapter dadpt = new SqlDataAdapter("select * from [order details]", connstr);

dadpt.Fill(ds);

BinaryFormatter bf = new BinaryFormatter();

FileStream fs = new FileStream(@"c:\xml1.txt",FileMode.OpenOrCreate);

ds.RemotingFormat = SerializationFormat.Binary;

bf.Serialize(fs,ds); 3.更独立的Datatable

DataTable Write XML string connstr = "server=(local);database=northwind;integrated security=true;async=true";

SqlDataAdapter dadpt = new SqlDataAdapter("select * from [order details]", connstr);

DataTable dt = new DataTable("Customer");

dadpt.Fill(dt);

dt.WriteXml(@"c:\DataTable.xml",true);

dt.WriteXmlSchema(@"c:\DataTableSchema.xml"); DataTable Read XML

StreamReader sr = new StreamReader(@"C:\DataTableSchema.xml");

DataTable dt = new DataTable();

dt.ReadXmlSchema(sr);

dt.ReadXml(new StreamReader(@"c:\dataTable.xml"));

this.dataGridView1.DataSource = dt; DataTable Merge

string connstr = "server=(local);database=northwind;integrated security=true;async=true";

SqlDataAdapter dadpt = new SqlDataAdapter("select * from customers", connstr);

DataTable dt = new DataTable("Customer");

dadpt.Fill(dt);

SqlDataAdapter dadpt1 = new SqlDataAdapter("select * from customers", connstr);

DataTable dt1 = new DataTable("Customer1");

dadpt1.Fill(dt1);

dt.Merge(dt1);