C# 页面抽奖实例 asp.net
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<script src="Scripts/jquery-1.10.2.min.js"></script>
<title>LuckyDraw</title>
<style>
/*reset css*/
body {
font-size: 0.8em;
letter-spacing: 1px;
font-family: "微软雅黑";
line-height: 1.8em;
}
div, h2, p, ul, li {
margin: 0;
padding: 0;
}
h1 {
font-size: 1em;
font-weight: normal;
}
h1 a {
background: #047;
padding: 2px 3px;
color: #fff;
text-decoration: none;
}
h1 a:hover {
background: #a40000;
color: #fff;
text-decoration: underline;
}
h3 {
color: #888;
font-weight: bold;
font-size: 1em;
margin: 1em auto;
position: relative;
}
/*demo css*/
h2 {
background: #a40000;
font-size: 12px;
color: #fff;
font-weight: normal;
text-align: center;
width: 100px;
height: 25px;
line-height: 25px;
margin: 30px 0 0 20px;
}
ul.line, ul.mulitline {
width: 500px;
height: 180px;
overflow: hidden;
margin-bottom: 20px;
}
.divName {
margin-left:10px;
font-size:66pt;
font-family:Microsoft YaHei
}
.divCompany {
margin-left:10px;
font-size:48pt;
font-family:Microsoft YaHei
}
ul.mulitline {
height: 90px;
}
li {
height: 80px;
text-indent: 80px;
font-size: 12px;
line-height: 100px;
list-style: none;
}
.myButtonSearch {
background: -webkit-gradient(linear, left top, left bottom, color-stop(0.05, #599bb3), color-stop(1, #408c99));
background: -moz-linear-gradient(top, #599bb3 5%, #408c99 100%);
background: -webkit-linear-gradient(top, #599bb3 5%, #408c99 100%);
background: -o-linear-gradient(top, #599bb3 5%, #408c99 100%);
background: -ms-linear-gradient(top, #599bb3 5%, #408c99 100%);
background: linear-gradient(to bottom, #599bb3 5%, #408c99 100%);
filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#599bb3', endColorstr='#408c99',GradientType=0);
background-color: #599bb3;
-moz-border-radius: 9px;
-webkit-border-radius: 9px;
border-radius: 9px;
display: inline-block;
cursor: pointer;
color: #ffffff;
font-family: Arial;
font-size: 16px;
font-weight: bold;
padding: 7px 22px;
text-decoration: none;
outline: none;
border: none;
}
</style>
<script>
/*******************************
*******************************/
$(function () {
//单行应用
var _wrap = $('ul.line');//定义滚动区域
var _interval = 50;//定义滚动间隙时间
var _moving;//需要清除的动画
_wrap.hover(function () {
clearInterval(_moving);//当鼠标在滚动区域中时,停止滚动
}, function () {
_moving = setInterval(function () {
var _field = _wrap.find('li:first');//此变量不可放置于函数起始处,li:first取值是变化的
var _h = _field.height();//取得每次滚动高度
_field.animate({ marginTop: -_h + 'px' }, 6, function () {//通过取负margin值,隐藏第一行
_field.css('marginTop', 0).appendTo(_wrap);//隐藏后,将该行的margin值置零,并插入到最后,实现无缝滚动
})
}, _interval)//滚动间隔时间取决于_interval
}).trigger('mouseleave');//函数载入时,模拟执行mouseleave,即自动滚动
});
$(function () {
//多行应用
var _wrap = $('ul.mulitline');//定义滚动区域
var _interval = 3000;//定义滚动间隙时间
var _moving;//需要清除的动画
_wrap.hover(function () {
clearInterval(_moving);//当鼠标在滚动区域中时,停止滚动
}, function () {
_moving = setInterval(function () {
var _field = _wrap.find('li:first');//此变量不可放置于函数起始处,li:first取值是变化的
var _h = _field.height();//取得每次滚动高度
_field.animate({ marginTop: -_h + 'px' }, 600, function () {//通过取负margin值,隐藏第一行
_field.css('marginTop', 0).appendTo(_wrap);//隐藏后,将该行的margin值置零,并插入到最后,实现无缝滚动
})
}, _interval)//滚动间隔时间取决于_interval
}).trigger('mouseleave');//函数载入时,模拟执行mouseleave,即自动滚动
});
$(document).keydown(function (e) {
if (e.keyCode == 13) {
document.getElementById("<%=btnDraw.ClientID%>").click();
}
})
</script>
</head>
<body style="background:#444 url(Content/bg-image2.jpg); WIDTH: 100%; HEIGHT: 100% ; margin:0 0 0 0 ; ">
<form id="form1" runat="server">
<div style="position:absolute;width:100%;height:100%">
<div style="padding-top:30px; position:absolute; margin:350px 0 0 0;width:100%;height:400px;background-color:#b2b2b2;filter:alpha(opacity=50); /* ie 有效*/ -moz-opacity:0.5; /* Firefox 有效*/ opacity: 0.5; /* 通用，其他浏览器 有效*/">
</div>
<div style="padding-top:30px;position:relative; margin:350px 0 0 0;width:100%;height:400px;">
<%-- <h2>恭喜获奖者</h2>--%>
<div style="margin:0 50px 0 150px;z-index:20;color:white; position:relative; ">
<div style="font-family:'Microsoft YaHei'; font-size:24pt">恭喜获奖者</div>
<ul class="line" runat="server" id="NameList">
<%=UserList %>
</ul>
<asp:Button ID="btnDraw" Visible="false" CssClass="myButtonSearch" runat="server" Text="Start" OnClick="btnDraw_Click" />
</div>
</div>
</div>
</form>
</body>
</html>
废话不多 直接上代码，上面是页面代码
//开始抽奖
private void DrawStart() { var dt = GstList().Tables[0]; StringBuilder sb = new StringBuilder(); foreach (DataRow r in dt.Rows) { sb.Append("<li><div class='divName'>" + r["UserName"].ToString() + "</div></li>"); sb.Append("<li><div class='divCompany'>" + r["Company"].ToString() + "</div></li>"); } UserList = sb.ToString(); }
//停止抽奖 private void DrawEnd() { var dt = GstOneAndDraw().Tables[0]; StringBuilder sb = new StringBuilder(); foreach (DataRow r in dt.Rows) { sb.Append("<li><div class='divName'>" + r["UserName"].ToString() + "</div>"); sb.Append("<div class='divCompany'>" + r["Company"].ToString() + "</div></li>"); } UserList = sb.ToString(); }
//获取抽奖人员列表 随机获取100人的数据 private DataSet GstList() { using (SqlConnection connection = new SqlConnection(connectionString)) { DataSet ds = new DataSet(); try { connection.Open(); var SQLString = "select top 100 * from [T_PhoneNo] where [HasDraw]=0 order by newid()"; SqlDataAdapter command = new SqlDataAdapter(SQLString, connection); command.Fill(ds, "ds"); } catch (System.Data.SqlClient.SqlException ex) { throw new Exception(ex.Message); } return ds; } }
//随机获取一个获奖着，并修改获奖状态 private DataSet GstOneAndDraw() { using (SqlConnection connection = new SqlConnection(connectionString)) { DataSet ds = new DataSet(); try { connection.Open(); var SQLString = "select top 1 * from [T_PhoneNo] where [HasDraw]=0 order by newid()"; SqlDataAdapter command = new SqlDataAdapter(SQLString, connection); command.Fill(ds, "ds"); if (ds.Tables[0].Rows.Count > 0) { string sqlstr = "update T_PhoneNo set [HasDraw]=1 where [ID]=" + ds.Tables[0].Rows[0]["ID"]; SqlCommand com = new SqlCommand(sqlstr, connection); int j = com.ExecuteNonQuery(); if (j > 0) { } } } catch (System.Data.SqlClient.SqlException ex) { throw new Exception(ex.Message); } return ds; } }
//点击抽奖事件 protected void btnDraw_Click(object sender, EventArgs e) { if (btnDraw.Text == "Start") { DrawStart(); btnDraw.Text = "End"; return; } if (btnDraw.Text == "End") { DrawEnd(); btnDraw.Text = "Start"; return; } }
后台代码如上，献丑了，直接用的ADO.NET，同事给的项目 我只是实现了这个功能，大家见笑了
