Asp.net 语法求助

hansuzhi 2010-02-24 02:59:05

请问下面代码里的ConnectionString='<%$ ConnectionStrings:Movies %>'中的<%$是什么语法意思？
求问，谢谢！！



<%@ Page Language="C#" %>

<%@ Register TagPrefix="custom" Namespace="myControls" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<script runat="server">



    protected void btnSubmit_Click(object sender, EventArgs e)

    {

        lblResult.Text = ComboBox1.Text;

    }

</script>



<html xmlns="http://www.w3.org/1999/xhtml" >

<head id="Head1" runat="server">

    <title>Show ComboBox</title>

</head>

<body>

    <form id="form1" runat="server">

    <div>

    

    <custom:ComboBox

        id="ComboBox1"

        ConnectionString='<%$ ConnectionStrings:Movies %>'

        DataKeyName="Title"

        SelectCommand="SELECT Title FROM Movies 

            WHERE Title LIKE @Title+'%'

            ORDER BY Title" 

        Style="float:left"    

        Runat="Server" />

    <asp:Button

        id="btnSubmit"

        Text="Submit"

        Runat="server" OnClick="btnSubmit_Click" />

    <hr />

    

    <asp:Label

        id="lblResult"

        Runat="server" />        

    

    </div>

    </form>

</body>

</html>

...全文

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liuhongdeyy 2010-02-24

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http://msdn.microsoft.com/en-us/library/d5bd1tad.aspx

hansuzhi 2010-02-24

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恍然大悟，谢谢高手回答。

zjx311989 2010-02-24

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学习学习 ... 呵呵

泡面之夏 2010-02-24

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＜%$ ConnectionStrings:Movies %＞，该表达式在运行时由 ASP.NET 分析器解析为连接字符串。还可以为SqlDataSource 的 ProviderName 属性指定一个表达式，例如＜%$ ConnectionStrings:Pubs.ProviderName %＞

<%ConnectionStrings:Movies %>功能用处相当于web.config中：
＜add name="Movies" connectionString="Server=localhost;
Integrated Security=True;Database=Movies;Persist Security Info=True"
providerName="System.Data.SqlClient" /＞

$相当于标识的意思，通过这个标识匹配web.config中对应的配置节。

cena_jin 2010-02-24