login.ascx

餐饮系统的各个功能

<%@ Control Language="C#" AutoEventWireup="true" CodeFile="login.ascx.cs" Inherits="login" %>
<style type="text/css">
.tuichu {
	font-family: "宋体";
	font-size: 12px;
	color: #00FFEF;
	text-decoration: underline;
	text-align: left;
}

.tuichu1 {
	font-family: "宋体";
	font-size: 12px;
	color: #00FFEF;
	text-decoration: none;
	text-align: left;
}

.neirongcu {
	font-family: "宋体";
	font-size: 12px;
	font-weight: bold;
	text-decoration: none;
	color: #FFFFFF;
}
.dlsybai {
	font-family: "宋体";
	font-size: 12px;
	font-weight: normal;
	color: #FFFFFF;
	text-decoration: none;
	line-height: 20px;
}
.dlkbai {
	font-family: "宋体";
	font-size: 12px;
	font-weight: normal;
	text-indent: 2px;
	height: 15px;
	width: 70px;
	border: 1px solid #DAD9D9;
}
.dlsyz {
	font-family: "宋体";
	font-weight: bold;
	color: #936D02;
	text-indent: 2px;
	font-size: 12px;
	text-align: left;
}
</style>
<script language="javascript" type="text/javascript">
 var xmlHttp;
var mess=null;
var username,password;

function createXMLHttpRequest()
	        {
		        if(window.ActiveXObject)
			        {
			        xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
			        }
		        else if(window.XMLHttpRequest)
			        {
			        xmlHttp=new XMLHttpRequest();
			        }
	        }
	        
function send_requestLogin()
{
    username=document.forms[0].<%=txbuser.ClientID%>.value;
	password=document.forms[0].<%=txbpass.ClientID%>.value;
    if(username!=""&&password!="")
    {
    document.getElementById("loginmess").innerHTML="<img src='images/wait2.gif' /><br />请稍候，系统正在检测您的登录信息...";
    }
    else
    {
    document.getElementById("loginmess").innerHTML="<img src='images/errors.gif' />&nbsp;请输入用户名和密码再登录！";
    return false;
    }
    setTimeout("send_requestLogin1()",1000);
    return false;
}	
     

function send_requestLogin1()
	       {
	            createXMLHttpRequest();
	            var url="Ajax_Login.aspx?timeStamp="+new Date().getTime();
	            xmlHttp.open("POST",url,true);
	            xmlHttp.onreadystatechange=processRequest5;
	            xmlHttp.setRequestHeader("Content-Type","application/x-www-form-urlencoded;");
	            var queryString="username="+username+"&password="+password;
	            xmlHttp.send(queryString);
	       }

function processRequest5()
	            {
	            if(xmlHttp.readyState==4)
		            {
		            if(xmlHttp.status==200)
			            {
			                if(xmlHttp.responseText!="ok")
			                {
                            document.getElementById("loginmess").innerHTML="<img src='images/errors.gif' />&nbsp;"+xmlHttp.responseText;
                            return false;
                            }
                            else
                            {
                            self.location="MealsList.aspx";
                            return false;
                            }
			            }
		            else { //页面不正常
                            alert("您所请求的页面有异常。");
                            return false;
                         }
		            }
	            }  
            

</script>
                
                <table width="350" height="30" border="0" cellpadding="0" cellspacing="0">
                  <tr>
                    <td width="85" scope="col" align="right">用户名：</td>
                    <td width="76"><asp:TextBox ID="txbuser" runat="server" CssClass="dlkbai"></asp:TextBox></td>
                    <td width="50" scope="col" align="right">密码：</td>
                    <td width="81"><asp:TextBox ID="txbpass" runat="server" CssClass="dlkbai" TextMode="Password"></asp:TextBox></td>
                    <td width="42" scope="col"><asp:ImageButton ID="ImageButton1" runat="server" ImageUrl="images/dlsy-_03.gif" OnClientClick="return send_requestLogin()" CausesValidation="False"/></td>
                    <td width="25" class="tuichu" scope="col" align="right"></td>
                  </tr>
                  <tr height="40">
                    <td align="center" colspan="6" id="loginmess"></td>
                  </tr>
                </table>