北大青鸟.net学习之三－－登陆验证简单代码
要求：输入用户名和密码，给定登录用户名和密码，登录成功或登陆失败报告，
清空时数据为空，关闭，退出窗口：
代码：
![]()
<%@ Page language="c#" Codebehind="bdqnyz.aspx.cs" AutoEventWireup="false" Inherits="bdqn.bdqnyz" %>
![]()
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >
![]()
<HTML>
![]()
<HEAD>
![]()
<title>bdqnyz</title>
![]()
<meta name="GENERATOR" Content="Microsoft Visual Studio .NET 7.1">
![]()
<meta name="CODE_LANGUAGE" Content="C#">
![]()
<meta name="vs_defaultClientScript" content="JavaScript">
![]()
<meta name="vs_targetSchema" content="http://schemas.microsoft.com/intellisense/ie5">
![]()
</HEAD>
![]()
<body MS_POSITIONING="GridLayout">
![]()
<form id="Form1" method="post" runat="server">
![]()
<asp:Label id="Label1" style="Z-INDEX: 101; LEFT: 200px; POSITION: absolute; TOP: 96px" runat="server"
![]()
BackColor="#E0E0E0">用户名：</asp:Label>
![]()
<asp:Label id="Label2" style="Z-INDEX: 102; LEFT: 200px; POSITION: absolute; TOP: 128px" runat="server"
![]()
BackColor="#E0E0E0" Width="65px">密 码：</asp:Label>
![]()
<asp:TextBox id="UserName" style="Z-INDEX: 103; LEFT: 264px; POSITION: absolute; TOP: 96px" runat="server"></asp:TextBox>
![]()
<asp:TextBox id="UserPwd" style="Z-INDEX: 104; LEFT: 264px; POSITION: absolute; TOP: 128px" runat="server"></asp:TextBox>
![]()
<asp:Button id="Submit" style="Z-INDEX: 105; LEFT: 208px; POSITION: absolute; TOP: 160px" runat="server"
![]()
Text="提交"></asp:Button>
![]()
<asp:Button id="Cancel" style="Z-INDEX: 106; LEFT: 280px; POSITION: absolute; TOP: 160px" runat="server"
![]()
Text="取消"></asp:Button>
![]()
<asp:Button id="Close" style="Z-INDEX: 107; LEFT: 352px; POSITION: absolute; TOP: 160px" runat="server"
![]()
Text="关闭"></asp:Button>
![]()
<asp:Label id="Label3" style="Z-INDEX: 108; LEFT: 296px; POSITION: absolute; TOP: 216px" runat="server"
![]()
BackColor="Red">登录信息</asp:Label>
![]()
</form>
![]()
</body>
![]()
</HTML>
![]()
代码：
![]()
using System;
![]()
using System.Collections;
![]()
using System.ComponentModel;
![]()
using System.Data;
![]()
using System.Drawing;
![]()
using System.Web;
![]()
using System.Web.SessionState;
![]()
using System.Web.UI;
![]()
using System.Web.UI.WebControls;
![]()
using System.Web.UI.HtmlControls;
![]()
![]()
namespace bdqn
![]()
{
![]()
/// <summary>
![]()
/// bdqnyz 的摘要说明。
![]()
/// </summary>
![]()
public class bdqnyz : System.Web.UI.Page
![]()
{
![]()
protected System.Web.UI.WebControls.Label Label1;
![]()
protected System.Web.UI.WebControls.Label Label2;
![]()
protected System.Web.UI.WebControls.TextBox UserName;
![]()
protected System.Web.UI.WebControls.TextBox UserPwd;
![]()
protected System.Web.UI.WebControls.Button Submit;
![]()
protected System.Web.UI.WebControls.Button Cancel;
![]()
protected System.Web.UI.WebControls.Label Label3;
![]()
protected System.Web.UI.WebControls.Button Close;
![]()
![]()
private void Page_Load(object sender, System.EventArgs e)
![]()
{
![]()
// 在此处放置用户代码以初始化页面
![]()
}
![]()
![]()
Web 窗体设计器生成的代码
![]()
![]()
private void Submit_Click(object sender, System.EventArgs e)
![]()
{
![]()
if(this.UserName.Text=="yyb" && this.UserPwd.Text=="yyb")
![]()
{
![]()
this.Label3.Text="登录成功！";
![]()
}
![]()
else
![]()
{
![]()
this.Label3.Text="登录失败！";
![]()
}
![]()
}
![]()
![]()
private void Cancel_Click(object sender, System.EventArgs e)
![]()
{
![]()
this.UserName.Text="";
![]()
this.UserPwd.Text="";
![]()
}
![]()
![]()
private void Close_Click(object sender, System.EventArgs e)
![]()
{
![]()
Response.Write("<script>window.close()</script>");
![]()
}
![]()
}
![]()
}
![]()
清空时数据为空，关闭，退出窗口：
代码：
<%@ Page language="c#" Codebehind="bdqnyz.aspx.cs" AutoEventWireup="false" Inherits="bdqn.bdqnyz" %><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" ><HTML> <HEAD> <title>bdqnyz</title> <meta name="GENERATOR" Content="Microsoft Visual Studio .NET 7.1"> <meta name="CODE_LANGUAGE" Content="C#"> <meta name="vs_defaultClientScript" content="JavaScript"> <meta name="vs_targetSchema" content="http://schemas.microsoft.com/intellisense/ie5"> </HEAD> <body MS_POSITIONING="GridLayout"> <form id="Form1" method="post" runat="server"> <asp:Label id="Label1" style="Z-INDEX: 101; LEFT: 200px; POSITION: absolute; TOP: 96px" runat="server" BackColor="#E0E0E0">用户名：</asp:Label> <asp:Label id="Label2" style="Z-INDEX: 102; LEFT: 200px; POSITION: absolute; TOP: 128px" runat="server" BackColor="#E0E0E0" Width="65px">密 码：</asp:Label> <asp:TextBox id="UserName" style="Z-INDEX: 103; LEFT: 264px; POSITION: absolute; TOP: 96px" runat="server"></asp:TextBox> <asp:TextBox id="UserPwd" style="Z-INDEX: 104; LEFT: 264px; POSITION: absolute; TOP: 128px" runat="server"></asp:TextBox> <asp:Button id="Submit" style="Z-INDEX: 105; LEFT: 208px; POSITION: absolute; TOP: 160px" runat="server" Text="提交"></asp:Button> <asp:Button id="Cancel" style="Z-INDEX: 106; LEFT: 280px; POSITION: absolute; TOP: 160px" runat="server" Text="取消"></asp:Button> <asp:Button id="Close" style="Z-INDEX: 107; LEFT: 352px; POSITION: absolute; TOP: 160px" runat="server" Text="关闭"></asp:Button> <asp:Label id="Label3" style="Z-INDEX: 108; LEFT: 296px; POSITION: absolute; TOP: 216px" runat="server" BackColor="Red">登录信息</asp:Label> </form> </body></HTML>代码：
using System;using System.Collections;using System.ComponentModel;using System.Data;using System.Drawing;using System.Web;using System.Web.SessionState;using System.Web.UI;using System.Web.UI.WebControls;using System.Web.UI.HtmlControls;namespace bdqn
{
/// <summary>
/// bdqnyz 的摘要说明。
/// </summary> public class bdqnyz : System.Web.UI.Page { protected System.Web.UI.WebControls.Label Label1; protected System.Web.UI.WebControls.Label Label2; protected System.Web.UI.WebControls.TextBox UserName; protected System.Web.UI.WebControls.TextBox UserPwd; protected System.Web.UI.WebControls.Button Submit; protected System.Web.UI.WebControls.Button Cancel; protected System.Web.UI.WebControls.Label Label3; protected System.Web.UI.WebControls.Button Close; private void Page_Load(object sender, System.EventArgs e) { // 在此处放置用户代码以初始化页面 }
Web 窗体设计器生成的代码 private void Submit_Click(object sender, System.EventArgs e) { if(this.UserName.Text=="yyb" && this.UserPwd.Text=="yyb") { this.Label3.Text="登录成功！"; } else { this.Label3.Text="登录失败！"; } } private void Cancel_Click(object sender, System.EventArgs e) { this.UserName.Text=""; this.UserPwd.Text=""; } private void Close_Click(object sender, System.EventArgs e) { Response.Write("<script>window.close()</script>"); } }
}
浙公网安备 33010602011771号