• 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;
                 100px;
                height: 25px;
                line-height: 25px;
                margin: 30px 0 0 20px;
            }
    
            ul.line, ul.mulitline {
                 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;100%;height:100%">
            <div style="padding-top:30px; position:absolute;  margin:350px 0 0 0;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;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

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  • 原文地址:https://www.cnblogs.com/178mz/p/4143053.html
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