using (SqlConnection conn = new SqlConnection(ConfigurationManager.ConnectionStrings["connStr"].ToString())) 
{  

　　SqlDataAdapter sda = new SqlDataAdapter("Select * From T_Class Where F_Type='Product' order by F_RootID,F_Orders", conn); 
　　DataSet Ds = new DataSet(); 
　　sda.Fill(Ds, "T_Class"); 

　　//使用DataSet绑定时，必须同时指明DateMember 
　　this.dataGridView1.DataSource = Ds; 
　　this.dataGridView1.DataMember = "T_Class"; 

　　//也可以直接用DataTable来绑定 
　　this.dataGridView1.DataSource = Ds.Tables["T_Class"]; 
} 

IList<student> sList=StudentDB.GetAllList();
DataGridView.DataSource=sList;

using System; 
using System.Collections.Generic; 
using System.ComponentModel; 
using System.Data; 
using System.Drawing; 
using System.Text; 
using System.Windows.Forms; 
using System.Collections; 

namespace DataGridViewBindingData 
{ 
public partial class Form1 : Form 
{ 

public Form1() 
{ 
　　InitializeComponent(); 
} 


private void button1_Click(object sender, EventArgs e) 
{ 
　　//this.dataGridView1.DataSource = DataBindingByList1(); 
　　//this.dataGridView1.DataSource = DataBindingByList2(); 
　　//this.dataGridView1.DataSource = DataBindingByDataTable(); 
　　this.dataGridView1.DataSource = DataBindingByBindingSource(); 
} 

/// <summary> 
/// IList接口（包括一维数组，ArrayList等） 
/// </summary> 
/// <returns></returns> 
private ArrayList DataBindingByList1() 
{ 
　　ArrayList Al = new ArrayList(); 
　　Al.Add(new PersonInfo("a","-1")); 
　　Al.Add(new PersonInfo("b","-2")); 
　　Al.Add(new PersonInfo("c","-3")); 
　　return Al; 
} 

/// <summary> 
/// IList接口（包括一维数组，ArrayList等） 
/// </summary> 
/// <returns></returns> 
private ArrayList DataBindingByList2() 
{ 
　　ArrayList list = new ArrayList(); 
　　for (int i = 0; i < 10; i++) 
　　{ 
　　　　list.Add(new DictionaryEntry(i.ToString(),i.ToString()+"_List")); 
　　} 
　　return list; 
} 


/// <summary> 
/// IListSource接口（DataTable、DataSet等） 
/// </summary> 
/// <returns></returns> 
private DataTable DataBindingByDataTable() 
{ 
　　DataTable dt = new DataTable(); 
　　DataColumn dc1 = new DataColumn("Name"); 
　　DataColumn dc2 = new DataColumn("Value"); 

　　dt.Columns.Add(dc1); 
　　dt.Columns.Add(dc2); 

　　for (int i = 1; i <= 10; i++) 
　　{ 
　　　　DataRow dr = dt.NewRow(); 
　　　　dr[0] = i; 
　　　　dr[1] = i.ToString() + "_DataTable"; 
　　　　dt.Rows.Add(dr); 
　　} 

　　return dt; 
} 


/// <summary> 
/// IBindingListView接口（如BindingSource类） 
/// </summary> 
/// <returns></returns> 
private BindingSource DataBindingByBindingSource() 
{ 
　　Dictionary<string, string> dic = new Dictionary<string, string>(); 
　　for (int i = 0; i < 10; i++) 
　　{ 
　　　　dic.Add(i.ToString(),i.ToString()+"_Dictionary"); 
　　} 
　　return new BindingSource(dic,null); 
} 

} 
} 

// DataSet 、DataTable

// 方式1
DataSet ds=new DataSet ();
this.dataGridView1.DataSource=ds.Table[0];
this.dataGridView1.DataSource = ds.Tables["表名"];

//  方式2
DataTable dt=new DataTable();
this.dataGridView1.DataSource=dt;

// DataView
DataView dv = new DataView();
this.dataGridView1.DataSource = dv;

// 设置了DataMember
DataSet ds=new DataSet ();
this.dataGridView1.DataSource = ds;
this.dataGridView1.DataMember = "表名";

// ArrayList
ArrayList Al = new ArrayList();
this.dataGridView1.DataSource = Al;

// dic
Dictionary<string, string> dic = new Dictionary<string, string>();
this.dataGridView1.DataSource = dic;

// List<Object>
this.dataGridVi.DataSource = new BindingList<Object>(List<Object>);

conn = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=Restaurant.mdb");//建立数据库连接  
cmd = new OleDbCommand("select * from data", conn);//执行数据连接  
DataSet ds = new DataSet();  
OleDbDataAdapter da = new OleDbDataAdapter(cmd);  
da.Fill(ds);

this.dataGridView1.DataSource = ds.Tables[0];//数据源  
this.dataGridView1.AutoGenerateColumns = false;//不自动  
conn.Close();//关闭数据库连接  

this.dataGridView.currentCell=null;//该行的作用是取消datagridview行的编辑状态  
adapter.Update(userTable);  

private void Form1_Load(object sender, EventArgs e)  
{  
    //使用List<>泛型集合填充DataGridView  
    List<Student> students = new List<Student>();  
    Student hat = new Student("Hathaway", "12", "Male");  
    Student peter = new Student("Peter","14","Male");  
    Student dell = new Student("Dell","16","Male");  
    Student anne = new Student("Anne","19","Female");  
    students.Add(hat);  
    students.Add(peter);  
    students.Add(dell);  
    students.Add(anne);  
    this.dataGridView1.DataSource = students;  
}

private void Form1_Load(object sender, EventArgs e)  
{  
    //使用Dictionary<>泛型集合填充DataGridView  
    Dictionary<String, Student> students = new Dictionary<String, Student>();  
    Student hat = new Student("Hathaway", "12", "Male");  
    Student peter = new Student("Peter","14","Male");  
    Student dell = new Student("Dell","16","Male");  
    Student anne = new Student("Anne","19","Female");  
    students.Add(hat.StuName,hat);  
    students.Add(peter.StuName,peter);  
    students.Add(dell.StuName,dell);  
    students.Add(anne.StuName,anne);  
     　　　　//在这里必须创建一个BindIngSource对象，用该对象接收Dictionary<>泛型集合的对象  
    BindingSource bs = new BindingSource();  
     　　　　//将泛型集合对象的值赋给BindingSourc对象的数据源  
    bs.DataSource = students.Values;  
    this.dataGridView1.DataSource = bs;  
}

//使用SqlDataReader填充DataGridView  
using (SqlCommand command = new SqlCommand("select * from product", DBService.Conn))  
{  
      SqlDataReader dr = command.ExecuteReader();  
      BindingSource bs = new BindingSource();  
      bs.DataSource = dr;  
      this.dataGridView1.DataSource = bs;  
}

using (SqlDataAdapter da = new SqlDataAdapter("select * from Product", DBService.Conn))  
{  
      DataSet ds = new DataSet();  
      da.Fill(ds);  
      this.dataGridView1.DataSource = ds.Tables[0];  
}