Visifire图表应用1-分组图示（柱形图）

使用Visifire完成的分组图示效果，主要是代码，代码如下，希望对大家有用

    class TestData {        public string Txt1 { get; set; }//保存一级分类        public string Txt2 { get; set; }//保存二级分类        public int Value { get; set; }    }     List<TestData> datas;        public Form1()        {            InitializeComponent();            //初始化数据            datas = new List<TestData>            {                new TestData{Txt1="西安",Txt2="西安1",Value=22},                new TestData{Txt1="西安",Txt2="西安2",Value=23},                new TestData{Txt1="西安",Txt2="西安3",Value=24},                new TestData{Txt1="西安",Txt2="西安4",Value=25},                new TestData{Txt1="宝鸡",Txt2="宝鸡5",Value=25},                new TestData{Txt1="宝鸡",Txt2="宝鸡6",Value=25},                new TestData{Txt1="宝鸡",Txt2="宝鸡7",Value=25}            };            CreateChart();        }        /// <summary>        /// Function to create a chart        /// </summary>        public void CreateChart()        {            Chart chart = new Chart();//创建图表            chart.View3D = true;//3D显示            Title title = new Title();//创建标题            title.Text = "统计测试信息";            chart.Titles.Add(title);            //定义一级分类显示颜色            SolidColorBrush[] brushes = new SolidColorBrush[]{                new SolidColorBrush(Colors.Red),                new SolidColorBrush(Colors.Green)            };            DataSeries dataSeries = new DataSeries();            dataSeries.RenderAs = RenderAs.Column;//柱形图                        int n = 0;            //按一级分类分组            foreach (var d in datas.GroupBy(d => d.Txt1).ToList())            {                var subList = d.ToList();//获取一级分类下的数据                                for (var i = 0; i < subList.Count; i++)                {                    DataPoint dataPoint = new DataPoint();                    dataPoint.Color = brushes[n];                                        dataPoint.AxisXLabel = subList[i].Txt2;                    dataPoint.YValue = subList[i].Value;                    dataSeries.DataPoints.Add(dataPoint);                    if (i == 0)                    {                        //显示一级图例                        dataPoint.Name = d.Key;                        dataPoint.ShowInLegend = true;                    }                    else                    {                        dataPoint.ShowInLegend = false;                    }                }                n++;                            }            dataSeries.ShowInLegend = true;//显示图例            chart.Series.Add(dataSeries);                        elementHost1.Child = chart;        }

代码下载:http://download.csdn.net/detail/lijun7788/4745151