根据html上的userAuthentication使Panel可见 [英] Making a Panel visible based on userAuthentication on html

问题描述

hi
i将制作一个asp面板，根据userAuthentication可见，但我有一个错误

请帮我看看如何编写此代码

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我的代码是

hi i will make a asp panel that them visibility based on userAuthentication but i have a error
please help me that how i write this code


my code is

<asp:Panel ID="Panel1" runat="server" Visible='<%= !User.Identity.IsAuthenticated %>'>

但我有错误



无法从字符串表示形式'<％=！User.Identity.IsAuthenticated.ToString（）％>'中为'Visible'属性创建'System.Boolean'类型的对象。

but i have a error

Cannot create an object of type 'System.Boolean' from its string representation '<%= !User.Identity.IsAuthenticated.ToString() %>' for the 'Visible' property.

推荐答案

Visible="<%# CheckIsAuthenticated()%>"

在代码中添加以下方法

add below method in code behind

public bool CheckIsAuthenticated()
{
   return !User.Identity.IsAuthenticated;
}

<asp:panel id="Panel1" runat="server" visible="<%# !User.Identity.IsAuthenticated %>" xmlns:asp="#unknown"></asp:panel>

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