为什么在将动态数据传递给jquery图表时数据没有绑定？

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问题描述

您好我正在尝试传递jquery图表的动态数据。但我无法根据数据绘制图表没有绑定到图表...它显示为[对象] ..

任何人请帮助我...

我试过这个..

Hi I am trying to pass the dynamic data for jquery charts. But am not able to plot the chart by that data is not binding to the chart...it is showing like [Object object]..
Any one help me please...
I have tried this..

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>


<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
    <title>Flot Examples: AJAX</title>
    <link href="scripts/examples.css" rel="stylesheet" type="text/css" />

    <!--[if lte IE 8]><script language="javascript" type="text/javascript" src="../../excanvas.min.js"></script><![endif]-->
    <script language="javascript" type="text/javascript" src="scripts/jquery.js"></script>
    <script language="javascript" type="text/javascript" src="scripts/jquery.flot.js"></script>
    <script type="text/javascript">



    $(function() {

        var source = {};

        $.ajax({
            type: 'POST',
            //data:'format=json',
            dataType: 'jsonp',
            async: false,
            url: 'http://localhost:30082/restfrchrst.svc/GetChartdetails',
            //cache: false,
            contentType: 'application/json',
            data: "",
            success: function (data) {
                alert(data);
                source = data;
                //source = $.parseJSON(data);

            },
            error: function (err) {
                alert(err);
            }


        });
        function fn()
        {
            var retdata;
            var arr1 = [];
            retdata = source;
            arr1.push(retdata);
        }

        var plot = $.plot("#placeholder", [
            //{ data: sin, label: "sin(x)"},
            //{ data: cos, label: "cos(x)"}
           { data:  arr1}
        ], {
            series: {
                lines: {
                    show: true
                },
                points: {
                    show: true
                }
            },
            grid: {
                hoverable: true,
                clickable: true
            },
            yaxis: {
                min: 200,
                max: 600
            }

        });

        $("<div id='tooltip'></div>").css({
            position: "absolute",
            display: "none",
            border: "1px solid #fdd",
            padding: "2px",
            "background-color": "#fee",
            opacity: 0.80
        }).appendTo("body");

        $("#placeholder").bind("plothover", function (event, pos, item) {

            if ($("#enablePosition:checked").length > 0) {
                var str = "(" + pos.x.toFixed(2) + ", " + pos.y.toFixed(2) + ")";
                $("#hoverdata").text(str);
            }

            if ($("#enableTooltip:checked").length > 0) {
                if (item) {
                    var x = item.datapoint[0].toFixed(2),
                        y = item.datapoint[1].toFixed(2);

                    $("#tooltip").html(item.series.label + " of " + x + " = " + y)
                        .css({top: item.pageY+5, left: item.pageX+5})
                        .fadeIn(200);
                    }
                else {
                    $("#tooltip").hide();
                }
            }
        });

        $("#placeholder").bind("plotclick", function (event, pos, item) {
            if (item) {
                $("#clickdata").text(" - click point " + item.dataIndex + " in " + item.series.label);
                plot.highlight(item.series, item.datapoint);
            }
        });

        // Add the Flot version string to the footer

        $("#footer").prepend("Flot " + $.plot.version + " &ndash; ");
    });

    </script>
</head>
<body>
    <div id="header">
        <h2>Interactivity</h2>
    </div>

    <div id="content">

        <div class="demo-container">
            <div id="placeholder" class="demo-placeholder"></div>
        </div>

        <p>One of the goals of Flot is to support user interactions. Try pointing and clicking on the points.</p>

        <p>
            <label><input id="enablePosition" type="checkbox" checked="checked"></input>Show mouse position</label>
            <span id="hoverdata"></span>
            <span id="clickdata"></span>
        </p>

        <p>A tooltip is easy to build with a bit of jQuery code and the data returned from the plot.</p>

        <p><label><input id="enableTooltip" type="checkbox" checked="checked"></input>Enable tooltip</label></p>

    </div>

    <div id="footer">
        Copyright &copy; 2007 - 2013 IOLA and Ole Laursen
    </div>

</body>
</html>

public class restfrchrst : Irestfrchrst
    {
        SqlConnection con = new SqlConnection("Data Source=10.90.90.100;Initial Catalog=SGT_Test;User ID=sgtuser;Password=sgtuser");
        List c = new List();
        public List GetChartdetails() 
        {
            con.Open();
            SqlCommand cmd = new SqlCommand("select * from charts",con);
            SqlDataReader dr = cmd.ExecuteReader();
            if (dr.HasRows)
            {
                while (dr.Read())
                {
                    c.Add(new chart { marks = Convert.ToInt32(dr[0]), progress = Convert.ToDecimal(dr[1]) });
                }
            }
            con.Close();
            return c;
        }

svc.cs 

isvc is:
 public interface Irestfrchrst
    {
        [OperationContract]
        [WebGet(UriTemplate = "GetChartdetails", ResponseFormat = WebMessageFormat.Json)]
        
        List GetChartdetails();
    }
    [DataContract]

    public class chart
    {
          [DataMember]
        public int marks { get; set; }
           [DataMember]
        public decimal progress { get; set; }
    } 
}

数据

为什么在将动态数据传递给jquery图表时数据没有绑定？

问题描述

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