ASP.net怎么连接数据库？

顺便解释一下什么意思，谢谢！

追问：能不能帮忙解释一下，谢了！！！

答案：
//==================数据库连接===========================
    public SqlConnection getcon()
    {
        string strCon = "Data Source=(local);DataBase=db_Examination;User ID=sa;PWD=123";
        SqlConnection sqlCon = new SqlConnection(strCon);
        return sqlCon;
    }
    public bool eccom(string sqlstr1)
    {
        SqlConnection con = this.getcon();
        con.Open();//打开连接
asp.net 数据库连接的方法

LoadCommandList()
Dim objConn As New Odbc.OdbcConnection
Dim objCmd As New Odbc.OdbcCommand
Dim objDataReader As Odbc.OdbcDataReader
CommandList.Items.Clear()
objConn.ConnectionString = "Driver={Microsoft Access Driver (*.mdb)};Dbq=" & Application.StartupPath & "\database.mdb"
Debug.Print(Application.StartupPath & "\database.mdb")
objConn.Open()'连接数据库
objCmd.Connection = objConn
objCmd.CommandText = "select * from Commands"
objDataReader = objCmd.ExecuteReader()'执行SQL语句
While objDataReader.Read()'读数据，以下和数据库连接无关
CommandList.Items.Add(objDataReader.GetString(0) & "," & objDataReader.GetString(1))
End While
objConn.Close()
End Sub

ASP.net连接access数据库例程
<%@ Import Namespace="System.Data" %>
<%@ Import NameSpace="System.Data.OleDb" %>
<script laguage="VB" runat="server">
Dim myConnection As OleDbConnection
Dim myCommand As OleDbCommand
sub page_load(sender as Object,e as EventArgs)
'1.连接数据库
dim dbname as string
dbname=server.mappath("authors.mdb")
myConnection = New OleDbConnection( "PROVIDER=Microsoft.Jet.OLEDB.4.0;DATA Source="&dbname )
myConnection.Open()
la1.text="Connection Opened!"

'2.添加记录
myCommand = New OleDbCommand( "Insert INTO Authors(Authors,country) Values('Simson','usa')", myConnection )
myCommand.ExecuteNonQuery()
la2.text="New Record Inserted!"
 

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