loginTest.aspx
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="loginTest.aspx.cs" Inherits="loginTest" %>
<%@ Register Src="mylogin.ascx" TagName="mylogin" TagPrefix="uc1" %><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml" ><head runat="server"> <title>無標題頁</title> <style type="text/css">
td{
td
font-size:12px;
}
</style></head><body> <form id="form1" runat="server"> <div style="text-align: center"> <uc1:mylogin ID="Mylogin1" runat="server" /> <br /> <asp:Label ID="Label1" runat="server"></asp:Label></div> </form></body></html>loginTest.aspx.cs
using System;using System.Data;using System.Configuration;using System.Collections;using System.Web;using System.Web.Security;using System.Web.UI;using System.Web.UI.WebControls;using System.Web.UI.WebControls.WebParts;using System.Web.UI.HtmlControls;public partial class loginTest : System.Web.UI.Page{ protected void Page_Load(object sender, EventArgs e) { if (Page.IsPostBack) { //注意這下面一行Page.Validate()，如果不寫就出錯 //因爲驗證控件是在自定義控件 mylogin.ascx 上面的 //故在login.aspx 這一頁面還要讓頁面驗證一下（觸發頁面驗證） Page.Validate(); //下面這個處理事件，其實應該是放在自定義控件裏面的代碼中的。 if (Mylogin1.IsValid) { Label1.Text += "歡迎：" + Mylogin1.UserID + "," + "密碼是：" + Mylogin1.UserPwd; } } }}
自定義控件 mylogin.ascx
<%@ Control Language="C#" AutoEventWireup="true" CodeFile="mylogin.ascx.cs" Inherits="mylogin" %><table border="1" cellpadding="3"> <tr> <td colspan="3" style="background-color: <% =BackColor%>; text-align: center"> 用戶登錄</td> </tr> <tr> <td style="width: 100px; height: 32px"> 用戶名：</td> <td style="width: 100px; height: 32px"> <asp:TextBox ID="txtUserID" runat="server"></asp:TextBox></td> <td style="width: 100px; height: 32px"> <asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server" ControlToValidate="txtUserID" Display="Dynamic" ErrorMessage="用戶名不能爲空"></asp:RequiredFieldValidator></td> </tr> <tr> <td style="width: 100px; height: 27px"> 密碼：</td> <td style="width: 100px; height: 27px"> <asp:TextBox ID="txtUserPwd" runat="server"></asp:TextBox></td> <td style="width: 100px; height: 27px"> <asp:RequiredFieldValidator ID="RequiredFieldValidator2" runat="server" ControlToValidate="txtUserPwd" Display="Dynamic" ErrorMessage="密碼不能爲空" Height="18px"></asp:RequiredFieldValidator> <asp:RegularExpressionValidator ID="RegularExpressionValidator1" runat="server" ControlToValidate="txtUserPwd" Display="Dynamic" ErrorMessage="密碼不能小於五個字符" ValidationExpression="[0-9a-zA-Z]{5,}"></asp:RegularExpressionValidator></td> </tr> <tr> <td colspan="3" style="text-align: center; height: 89px;"> <asp:Button ID="Button1" runat="server" Text="登錄" OnClick="Button1_Click" /> <br /> <asp:ValidationSummary ID="ValidationSummary1" runat="server" /> </td> </tr></table><asp:Label ID="Label1" runat="server"></asp:Label>
mylogin.ascx.cs
using System;using System.Data;using System.Configuration;using System.Collections;using System.Web;using System.Web.Security;using System.Web.UI;using System.Web.UI.WebControls;using System.Web.UI.WebControls.WebParts;using System.Web.UI.HtmlControls;public partial class mylogin : System.Web.UI.UserControl{ protected void Page_Load(object sender, EventArgs e) { } public string BackColor = "red"; public string UserID { get { return txtUserID.Text; } set { txtUserID.Text = value; } } public string UserPwd { get { return txtUserPwd.Text; } set { txtUserPwd.Text = value; } } public bool IsValid { get { return Page.IsValid; } } //下面這個處理方法我又寫在這裏面了 //是應該寫在這裏面的 protected void Button1_Click(object sender, EventArgs e) { //寫在裏面了就不用再去 Page.Validate()一下了。 if (Page.IsValid) { Label1.Text += "歡迎：" + UserID + "," + "密碼是：" + UserPwd; } }}
