User.Master.us:
//用户登录前后显示不同的控件
protected void Page_Load(object sender, EventArgs e)
{
if (Request.Cookies["UserID"] == null)
{
//用户未登录
Control userControl = new Control();
userControl = LoadControl("~/UserControls/UserLogin.ascx");
UserPanel.Controls.Add(userControl);
}
else
{
Control userControl = new Control();
userControl = LoadControl("~/UserControls/UserInfo.ascx");
UserPanel.Controls.Add(userControl);
}
}
UserLogin.ascx:
<%@ Control Language="C#" AutoEventWireup="true" CodeFile="UserLogin.ascx.cs" Inherits="UserControls_UserLogin" %>
<table border="0" cellpadding="1" cellspacing="0" style="border-collapse: collapse">
<tr>
<td>
<asp:Label ID="UserNameLabel" runat="server" AssociatedControlID="UserName">User Name:</asp:Label>
<asp:TextBox ID="UserName" MaxLength="20" runat="server" ValidationGroup="LoginGroup"></asp:TextBox>
</td>
<td>
<asp:Label ID="PasswordLabel" runat="server" AssociatedControlID="Password">Password:</asp:Label>
<asp:TextBox ID="Password" runat="server" MaxLength="20" TextMode="Password" ValidationGroup="LoginGroup"></asp:TextBox>
</td>
<td>
<asp:Label ID="VerifyCodeLabel" runat="server" AssociatedControlID="VerifyCode">VerifyCode:</asp:Label>
</td>
<td style="width: 414px">
<asp:TextBox ID="VerifyCode" runat="server" MaxLength="4" ToolTip="input the number in the picture right please." ValidationGroup="LoginGroup"></asp:TextBox>
<asp:RequiredFieldValidator ID="VerifycodeRequired" runat="server" SetFocusOnError="True" ControlToValidate="VerifyCode"
Display="Dynamic" ValidationGroup="LoginGroup">Please input the number in the picture right.</asp:RequiredFieldValidator>
<img id="imageCode" src="VerifyCode.aspx?flag=2" alt="please reflash the page." />
</td>
<td align="center">
<asp:Button ID="LoginButton" runat="server" CommandName="Login" Text="Sign in" OnClick="LoginButton_Click"/>
</td>
</tr>
<tr>
<td colspan="4" align="center">
<a href="Register.aspx">Sign up for free!</a>|<a href="ResetPwd.aspx">Forgotten my password?</a>
<asp:RequiredFieldValidator ID="UserNameRequired" runat="server" ControlToValidate="UserName" Display="Dynamic" ErrorMessage="Username requires" ValidationGroup="LoginGroup"></asp:RequiredFieldValidator>
<asp:RegularExpressionValidator ID="REV_UserName" runat="server" ErrorMessage="UserName format illegal."
ControlToValidate="UserName" Display="Dynamic" ValidationExpression="^[0-9a-zA-Z]{6,20}$" SetFocusOnError="True" ValidationGroup="LoginGroup"></asp:RegularExpressionValidator>