ASP.net 2.0 学习如何用户配置文件 -pc6资讯

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ASP.net 2.0 学习如何用户配置文件 时间：2009/11/10 12:02:00来源：本站整理作者：我要评论(0)

概念:Profile对象提供强类型、可持久化的Session状态表单

Web配置文件节点代码：<黑白激光传真一体机>

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<profile>
<properties>
<add name="firstName"/>
<add name="lastName"/>
<add name="numberOfVisits" type="Int32" defaultValue="0"/>
</properties>
</profile>
<profile>
<properties>
<add name="firstName"/>
<add name="lastName"/>
<add name="numberOfVisits" type="Int32" defaultValue="0"/>
</properties>
</profile>

在Web配置文件中定义Profile后，可以使用Profile对象修改其属性。

ASP.NET前台界面调用显示结果示例代码：<低速复印机>

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<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
    <title>Show Profile</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>

    First Name:
    <asp:Label
        id="lblFirstname"
        Runat="server" />
    <br /><br />
    Last Name:
    <asp:Label
        id="lblLastName"
        Runat="server" />
    <br /><br />
    Number of Visits:
    <asp:Label
        id="lblNumberOfVisits"
        Runat="server" />

    <hr />

    <asp:Label
        id="lblNewFirstName"
        Text="New First Name:"
        AssociatedControlID="txtNewFirstName"
        Runat="server" />
    <asp:TextBox
        id="txtNewFirstName"
        Runat="server" />
    <br /><br />
    <asp:Label
        id="lblNewLastName"
        Text="New Last Name:"
        AssociatedControlID="txtNewLastName"
        Runat="server" />
    <asp:TextBox
        id="txtNewLastName"
        Runat="server" />
    <br /><br />
    <asp:Button
        id="btnUpdate"
        Text="Update Profile"
        OnClick="btnUpdate_Click"
        Runat="server" />

    </div>
    </form>
</body>
</html>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
    <title>Show Profile</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>

    First Name:
    <asp:Label
        id="lblFirstname"
        Runat="server" />
    <br /><br />
    Last Name:
    <asp:Label
        id="lblLastName"
        Runat="server" />
    <br /><br />
    Number of Visits:
    <asp:Label
        id="lblNumberOfVisits"
        Runat="server" />

    <hr />

    <asp:Label
        id="lblNewFirstName"
        Text="New First Name:"
        AssociatedControlID="txtNewFirstName"
        Runat="server" />
    <asp:TextBox
        id="txtNewFirstName"
        Runat="server" />
    <br /><br />
    <asp:Label
        id="lblNewLastName"
        Text="New Last Name:"
        AssociatedControlID="txtNewLastName"
        Runat="server" />
    <asp:TextBox
        id="txtNewLastName"
        Runat="server" />
    <br /><br />
    <asp:Button
        id="btnUpdate"
        Text="Update Profile"
        OnClick="btnUpdate_Click"
        Runat="server" />

    </div>
    </form>
</body>
</html>

ASP.NET后台属性赋值示例代码：

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void Page_PreRender()
{
   lblFirstname.Text = Profile.firstName;
   lblLastName.Text = Profile.lastName;
   Profile.numberOfVisits++;
   lblNumberOfVisits.Text =Profile.numberOfVisits.ToString();
}

protected void btnUpdate_Click(object sender, EventArgs e)
{
   Profile.firstName = txtNewFirstName.Text;
   Profile.lastName = txtNewLastName.Text;
}
void Page_PreRender()
{
   lblFirstname.Text = Profile.firstName;
   lblLastName.Text = Profile.lastName;
   Profile.numberOfVisits++;
   lblNumberOfVisits.Text =Profile.numberOfVisits.ToString();
}

protected void btnUpdate_Click(object sender, EventArgs e)
{
Profile.firstName = txtNewFirstName.Text;
Profile.lastName = txtNewLastName.Text;
}

最后理解Profile属性是持久化的非常重要。如果为一个用户设置Profile属性，那么就是该用户过500年也不会返回网站，属性也会保留其值。不想Sess状态。

默认Profile不支持匿名用户，如果需支持匿名用户的话，则在WEB配置文件需另外的配置额外的属性，具体细节，下次马上更新。
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