Common/ChartHelper.cs

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using System;
using System.Collections.Generic;
using System.Text;
using System.Data;
using dotnetCHARTING;
using System.Drawing;

namespace Common
{
    public delegate string SetXColumnHandler(string ora_Str);
    public class ChartHelper
    {
        public event SetXColumnHandler OnSetXColumn;
        public string SetXColumn(string ora_str)
        {
            if (OnSetXColumn != null)
            {
                return OnSetXColumn(ora_str);
            }
            return ora_str;
        }

        public void Create(Chart chart, string title, DataTable table, string xColumn, string yColumn, string style, bool user3D)
        {
            chart.Palette = new Color[] { Color.FromArgb(49, 255, 49), Color.FromArgb(255, 255, 0), Color.FromArgb(255, 99, 49), Color.FromArgb(0, 156, 255),
            Color.FromArgb(255, 125, 49), Color.FromArgb(125, 255, 49), Color.FromArgb(0, 255, 49) };
            chart.Use3D = user3D;
            SeriesCollection mySC = getRandomData(table, xColumn, yColumn);
            if (string.IsNullOrEmpty(style) || style == "线形")
            {
                chart.Type = ChartType.Combo;
                mySC = getRandomData2(table, xColumn, yColumn);
            }
            else if (style == "柱形")
            {
                chart.Type = ChartType.Combo;
            }
            else if (style == "金字塔")
            {
                chart.Type = ChartType.MultipleGrouped;
                chart.DefaultSeries.Type = SeriesTypeMultiple.Pyramid;
            }
            else if (style == "圆锥")
            {
                chart.Type = ChartType.MultipleGrouped;
                chart.DefaultSeries.Type = SeriesTypeMultiple.Cone;
            }
            chart.Title = title;
            if (string.IsNullOrEmpty(style) || style == "线形")
            {
                chart.DefaultSeries.Type = SeriesType.Line;
            }
          
            chart.DefaultElement.ShowValue = true;
            chart.PieLabelMode = PieLabelMode.Outside;
            chart.ShadingEffectMode = ShadingEffectMode.Three;
            chart.NoDataLabel.Text = "没有数据显示";
            chart.SeriesCollection.Add(mySC);
        }