MSChart使用之动态生成多个多行ChartArea

前台代码：

                        <asp:Chart ID="Chart1" runat="server" Height="500px" Width="1000px" BorderlineWidth="1" >

                        <Titles>

                            <asp:Title Name="Title1" runat="server" Text="设备稼动率波动图" Font="宋体,20pt"></asp:Title>

                        </Titles>

                        <legends>

                            <asp:Legend IsTextAutoFit="False" DockedToChartArea="NotSet" Name="Default" BackColor="Transparent" Font="宋体, 10pt, style=Bold">

                            </asp:Legend>

                        </legends>



                        <Series>

                        </Series>



                        <ChartAreas>

                        </ChartAreas>

                        </asp:Chart>

后台代码：包括动态生成ChartArea和保存为图片：

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Data;

using System.Web.UI.DataVisualization.Charting;

using System.Text;

using Microsoft.Win32;

using System.Drawing;



public partial class MSChartTest : System.Web.UI.Page

{

    int iNowYear = DateTime.Now.Year;

    protected void Page_Load(object sender, EventArgs e)

    {

        if (!IsPostBack)

        {

            for (int i = iNowYear - 10; i < iNowYear + 10; i++)

            {

                this.DDLYear.Items.Add(i.ToString());

            }

            this.DDLYear.SelectedValue = iNowYear.ToString();

            string SQL = "select  lookup_value_code,lookup_value_Name from T_EB_DB_LOOKUP_VALUE where LOOKUP_TYPE_CODE='RES_DEV_LOCATION'";

            DataSet ds = OraHelper.GetDateDS(SQL);

            this.DDLSYS.Items.Add("");

            if (ds != null && ds.Tables.Count > 0 && ds.Tables[0].Rows.Count > 0)

            {

                //DataTable dtSYS = ds.Tables[0];

                //DataRow dr = dtSYS.NewRow();

                //dr[0] = ""; dr[1] = "";

                //dtSYS.Rows.InsertAt(dr, 0);

                //this.DDLSYS.DataSource = dtSYS;

                //this.DDLSYS.DataValueField = "lookup_value_Name";

                //this.DDLSYS.DataTextField = "lookup_value_Name";

                //this.DDLSYS.DataBind();

                for (int i = 0; i < ds.Tables[0].Rows.Count; i++)

                {

                    this.DDLSYS.Items.Add(ds.Tables[0].Rows[i]["lookup_value_Name"].ToString().Trim());

                }

            }

        }

    }



    protected void btnSearch_Click(object sender, EventArgs e)

    { 

        SearchChart();

    }



    protected void SearchChart()

    {

        Chart1.ChartAreas.Clear();

        Chart1.Series.Clear();



        DataTable dtChart = this.Getdt();

        //this.GridView1.DataSource = dtChart;

        //this.GridView1.DataBind();

        if (dtChart != null && dtChart.Rows.Count>0)

        {

            DataView dv = dtChart.DefaultView;

            DataTable dtDeviceName = dv.ToTable(true, "DEVICE_NAME");//零件列表，ChartArea数 

            DataSet ds = new DataSet();

            ChartArea _ChartArea = null;

            Series _SeriesJRATE = null;

            Series _SeriesDRATE = null;

            List<string> oCharAreas = new List<string>();

            float firstChartAreaY = 0;

            for (int i = 0; i < dtDeviceName.Rows.Count; i++)

            {

                string DeviceName = dtDeviceName.Rows[i]["DEVICE_NAME"].ToString();

                DataRow[] drList = dtChart.Select(" DEVICE_NAME='" + DeviceName + "' ");

                

                if (drList != null && drList.Length>0)

                {

                        DataTable dt = drList.CopyToDataTable();

                        dt.TableName = DeviceName;

                        ds.Tables.Add(dt);

                        _ChartArea = new ChartArea();

                        _ChartArea.AxisX.MajorGrid.LineColor = System.Drawing.Color.FromArgb(224, 224, 224);

                        _ChartArea.AxisX.MajorGrid.LineDashStyle = ChartDashStyle.Dash;

                        _ChartArea.AxisY.MajorGrid.LineColor = System.Drawing.Color.FromArgb(224, 224, 224);

                        _ChartArea.AxisY.MajorGrid.LineDashStyle = ChartDashStyle.Dash;

                        _ChartArea.Position.Auto = true;

                        _ChartArea.Name = DeviceName;//设定Chart Name



                        ////_ChartArea.AxisY.Title = "单位";

                        ////_ChartArea.AxisY.TitleAlignment = StringAlignment.Far;

                        ////_ChartArea.AxisX.Title = "月份";

                        ////_ChartArea.AxisX.TitleAlignment = StringAlignment.Far;



                        _ChartArea.AxisX.Minimum = 1;//起始值

                        _ChartArea.AxisX.Maximum = 12;//结束值

                        _ChartArea.AxisX.Interval = 1;//间隔

                        _ChartArea.AxisX.IntervalType = DateTimeIntervalType.Number;//间隔类型指定



                        //_ChartArea.AxisX.LabelStyle.Interval = 1; //X文本间隔

                        //_ChartArea.AxisX.LabelStyle.Font = new System.Drawing.Font("隶书", 12);

                        //_ChartArea.AxisX.MajorGrid.Interval = 1;  //X主要辅助线间隔

                        //_ChartArea.AxisX.MinorGrid.Interval = 1;//X次要辅助线间隔

                        //_ChartArea.AxisX.MinorTickMark.Interval = 1;//X次要刻度线间隔

                        //_ChartArea.AxisX.MajorTickMark.Interval = 1;//X主要刻度线间隔

                        //_ChartArea.AxisY.MinorGrid.Interval = 1;//Y次要辅助线间隔

                        //_ChartArea.AxisY.MajorGrid.Interval = 1;//Y主要辅助线间隔

                        //_ChartArea.AxisY.LabelStyle.Interval = 0.5;

                        Chart1.ChartAreas.Add(_ChartArea);



                        Title title = new Title(_ChartArea.Name, Docking.Top);

                        Chart1.Titles.Add(title);

                        title.DockedToChartArea = _ChartArea.Name;

                        title.IsDockedInsideChartArea = false;

                        title.Alignment = ContentAlignment.TopCenter;



                        _SeriesJRATE = new Series();

                        _SeriesJRATE.ChartType = SeriesChartType.Spline;

                        _SeriesJRATE.Name = DeviceName + "_SJ";

                        _SeriesJRATE.ChartArea = _ChartArea.Name;

                        _SeriesJRATE.BorderColor = System.Drawing.Color.Blue;

                        _SeriesJRATE.Color = Color.Blue;

                        _SeriesJRATE.BorderWidth = 1;

                        _SeriesJRATE.ShadowOffset = 1;

                        _SeriesJRATE.IsValueShownAsLabel = true;

                        _SeriesJRATE.MarkerStyle = MarkerStyle.Triangle;

                        _SeriesJRATE.LegendText = "稼动率";

                        if (i == 0) { _SeriesJRATE.IsVisibleInLegend = true; }

                        else{ _SeriesJRATE.IsVisibleInLegend = false; }

            

                        Chart1.Series.Add(_SeriesJRATE); //加入Series



                        _SeriesDRATE = new Series();

                        _SeriesDRATE.ChartType = SeriesChartType.Spline;

                        _SeriesDRATE.Name = DeviceName + "_SD";

                        _SeriesDRATE.ChartArea = _ChartArea.Name;

                        _SeriesDRATE.BorderColor = System.Drawing.Color.Green;

                        _SeriesDRATE.Color = Color.Green;

                        _SeriesDRATE.BorderWidth = 1;

                        _SeriesDRATE.ShadowOffset = 1;

                        _SeriesDRATE.IsValueShownAsLabel = true;

                        _SeriesDRATE.MarkerStyle = MarkerStyle.Square;

                        _SeriesDRATE.LegendText = "直接率";

                        if (i == 0) { _SeriesDRATE.IsVisibleInLegend = true; }

                        else { _SeriesDRATE.IsVisibleInLegend = false; }



                        Chart1.Series.Add(_SeriesDRATE); //加入Series

                }

            }

            int CRows = Chart1.ChartAreas.Count % 2 == 1 ? (Chart1.ChartAreas.Count / 2 + 1) : (Chart1.ChartAreas.Count / 2);

            Chart1.Height = 60 + CRows * 420;

            for (int i = 0; i < Chart1.Legends.Count; i++)

            {

                Chart1.Legends[i].Docking = Docking.Top;

                Chart1.Legends[i].Alignment = StringAlignment.Center;

            }



            Chart1.Legends[0].Position.X = (float)(((Chart1.Width.Value / 2 - 150) / Chart1.Width.Value) * 100);

            Chart1.Legends[0].Position.Y = (float)((65/ Chart1.Height.Value) * 100);

            Chart1.Legends[0].Position.Height = (float)((20 / Chart1.Height.Value) * 100);

            Chart1.Legends[0].Position.Width = (float)((320 / Chart1.Width.Value) * 100);



            ////Chart1.Legends[0].BackColor = Color.Blue;

            //Chart1.Legends[0].BorderColor = Color.Blue;

            //Chart1.Legends[0].ForeColor = Color.Blue;        



            for (int i = 0; i < Chart1.ChartAreas.Count; i++)

            {

                int RowNum = i / 2 + 1;

                if (i % 2 == 0)   //第一列

                {

                    if (i == 0) //第一行

                    {

                        Chart1.ChartAreas[i].Position.Y = Chart1.ChartAreas.Count <=2 ? 20 : 11;

                    }

                    else  //非第一行

                    {

                        Chart1.ChartAreas[i].Position.Y = Chart1.ChartAreas[i-2].Position.Y+ Chart1.ChartAreas[i-2].Position.Height;

                    }

                    Chart1.ChartAreas[i].Position.X = 0.0F;

                    Chart1.ChartAreas[i].Position.Width = 48;

                    Chart1.ChartAreas[i].Position.Height = (float)((320 / Chart1.Height.Value) * 100);

                }

                else  //第二列

                {



                    if (i == 1) //第一行

                    {

                        Chart1.ChartAreas[i].Position.Y = Chart1.ChartAreas.Count <= 2 ? 20 : 11;

                    }

                    else  //非第一行

                    {

                        Chart1.ChartAreas[i].Position.Y = Chart1.ChartAreas[i - 2].Position.Y + Chart1.ChartAreas[i - 2].Position.Height;

                    }

                    Chart1.ChartAreas[i].Position.X =50;// (float)(Chart1.Height.Value * 0.5 - 10)

                    Chart1.ChartAreas[i].Position.Width = 48;

                    Chart1.ChartAreas[i].Position.Height = (float)((320 / Chart1.Height.Value) * 100);

                }





                if (ds.Tables[i] != null && ds.Tables[i].Rows.Count > 0)

                {

                    for (int j = 0; j < ds.Tables[i].Rows.Count; j++)

                    {

                        int iM = int.Parse(ds.Tables[i].Rows[j]["MONTH"].ToString());

                        double dJ = double.Parse(ds.Tables[i].Rows[j]["JRATE"].ToString());

                        double dD = double.Parse(ds.Tables[i].Rows[j]["DRATE"].ToString());



                        Chart1.Series[Chart1.ChartAreas[i].Name + "_SJ"].Points.AddXY(iM, dJ);

                        Chart1.Series[Chart1.ChartAreas[i].Name + "_SD"].Points.AddXY(iM, dD);

                    }



                    //for (int m = 2; m <= 11; m++)

                    //{

                    //    string strM = m < 10 ? "0" + m.ToString() : m.ToString();

                    //    Chart1.Series[Chart1.ChartAreas[i].Name + "_SH"].Points.AddXY(m, 0);

                    //}

                }



            }





        }

    }



    protected DataTable Getdt()

    {

        string sYear = this.DDLYear.SelectedValue.Trim();

        string sSYS = this.DDLSYS.SelectedValue.Trim();

        int iYear = iNowYear;

        StringBuilder sb = new StringBuilder();

        sb.Append(@"SELECT NVL(TA.RESOURCE_NAME,'') DEVICE_NAME 

                        ,NVL(SL.LOOKUP_VALUE_NAME,'') INSTALL_LOCATION

                        ,SUBSTR(YEAR_MONTH,6,2) MONTH

                        ,CASE HOURS_STAT_ACT WHEN 0 THEN 0 

                        ELSE ROUND((HOURS_TRAN+HOURS_TRAN_ALLE+HOURS_PREPARE+HOURS_PLAN_CARE)*100/HOURS_STAT_ACT,2)

                        END JRATE

                        ,CASE HOURS_STAT_ACT WHEN 0 THEN 0 

                        ELSE ROUND(HOURS_TRAN*100/HOURS_STAT_ACT,2)

                        END DRATE

                        FROM RES.T_RES_BU_MOVE_REATE TM

                        LEFT JOIN RES.T_RES_BU_MOVE_REATE_D TD ON TM.MOVE_REATE_ID=TD.MOVE_REATE_ID

                        LEFT JOIN T_RES_BU_DEVICE_ACCOUNT TA

                        ON TD.RESOURCE_ID=TA.DEVICE_ACCOUNT_ID

                        LEFT JOIN T_EB_DB_LOOKUP_VALUE SL ON

                        SL.LOOKUP_VALUE_CODE=TA.INSTALL_LOCATION

                        AND SL.LOOKUP_TYPE_CODE='RES_DEV_LOCATION'

                        WHERE 1=1 ");

        if (int.TryParse(sYear, out iYear))

        {

            sb.Append(@" AND TM.YEAR_MONTH LIKE '" + iYear.ToString() + "%' ");

        }

        else { }

        if (!string.IsNullOrEmpty(sSYS))

        {

            sb.Append(@" AND TA.INSTALL_LOCATION='" + sSYS + "' ");

        }

        else { }

        sb.Append(@" ORDER BY DEVICE_NAME,MONTH ");

        //DataTable dtChart = Gateway.Default.FromCustomSql(sb.ToString()).ToDataSet().Tables[0];



        DataSet ds = OraHelper.GetDateDS(sb.ToString());

        if (ds != null && ds.Tables.Count > 0)

        {

            DataTable dtChart = ds.Tables[0];

            return dtChart;

        }

        else return null;

    }



    protected void btnClear_Click(object sender, EventArgs e)

    {

        this.DDLYear.Text = iNowYear.ToString();

        this.DDLSYS.Text ="";

    }



    protected void btnOut_Click(object sender, EventArgs e)

    {

        SearchChart();

        string sPath = Server.HtmlEncode(Request.PhysicalApplicationPath);

        string Path = sPath + "\\TempImageFiles\\波动图.jpg";

        Chart1.SaveImage(Path);

        string DownloadPath=Server.HtmlEncode(Request.ApplicationPath);

        DownloadFile(DownloadPath+"/TempImageFiles/波动图.jpg", "波动图.jpg");

    }







    /// <summary>

    /// 下载文件

    /// </summary>

    /// <param name="filename">文件物理地址</param>

    protected void DownloadFile(string filePath,string fName)

    {

        System.IO.FileInfo fi = new System.IO.FileInfo(filePath);

        string fileextname = fi.Extension;

        string DEFAULT_CONTENT_TYPE = "application/unknown";

        RegistryKey regkey, fileextkey;

        string filecontenttype;

        try

        {

            regkey = Registry.ClassesRoot;

            fileextkey = regkey.OpenSubKey(fileextname);

            filecontenttype = fileextkey.GetValue("Content Type", DEFAULT_CONTENT_TYPE).ToString();

        }

        catch

        {

            filecontenttype = DEFAULT_CONTENT_TYPE;

        }

        Response.Clear();

        Response.Charset = "utf-8";

        Response.Buffer = true;

        this.EnableViewState = false;

        Response.ContentEncoding = System.Text.Encoding.UTF8;

        Response.AppendHeader("Content-Disposition", "attachment;filename=" +

Context.Server.UrlPathEncode(fName));

        Response.ContentType = filecontenttype;

        Response.WriteFile(filePath);

        Response.Flush();

        Response.Close();



        Response.End();

    }

}