ADO.NET 2.0 Dataset和Datatable 新功能新特性--打印文章

ADO.NET 2.0 Dataset和Datatable 新功能新特性

作者：武汉SEO闵涛文章来源：敏韬网点击数1889 更新时间：2009/4/23 10:48:24 文章录入：mintao 责任编辑：mintao

t;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);

this.dataGridView1.DataSource = dt; DataTable Load DataReader

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

SqlConnection conn = new SqlConnection(connstr);

conn.Open();

SqlCommand cmd = new SqlCommand("select * from [order details]", conn);

SqlDataReader dr = cmd.ExecuteReader();

DataTable dt = new DataTable("Customer");

dt.Load(dr);

this.dataGridView1.DataSource = dt;