DropDownList绑定数据库字段

今天写了一点点,完成了DropDownList控件的绑定。

<%@ Page Language="C#" Debug="true" %>
<%@ import Namespace="System.Data" %>
<%@ import Namespace="System.Data.SqlClient" %>
<script runat="server">

    // Insert page code here
    private void Page_Load(object sender,System.EventArgs e)
    {
     DropDownListAdd();
    }
    void DropDownListAdd()
    {
     string strconn="Data Source=localhost;Initial Catalog=hgyp;Integrated Security=SSPI";
     SqlConnection conn=new SqlConnection(strconn);
     conn.Open();
     string strsql="select * from zs_class";
     SqlDataAdapter myDataAdapter=new SqlDataAdapter(strsql,conn);
     DataSet ds=new DataSet();
     myDataAdapter.Fill(ds,"zs_class");
     DropDownList1.DataSource=ds.Tables["zs_class"].DefaultView;
     DropDownList1.DataBind();
     conn.Close();
   
    }
    //

</script>
<html>
<head>
</head>
<body>
    <form runat="server">
        <p align="center">
            <asp:DropDownList id="DropDownList1" runat="server" DataValueField="classid" DataTextField="classname" Width="160px"></asp:DropDownList>
        </p>
        <p align="center">
            <asp:TextBox id="TextBox1" runat="server" Width="160px"></asp:TextBox>
        </p>
        <p align="center">
            <asp:Button id="Button1" runat="server" Text="确定"></asp:Button>
        </p>
        <!-- Insert content here -->
    </form>
</body>
</html>

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