Steema Central

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using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace WindowsFormsApplication7
{
    public partial class Form1 : Form
    {
        
        
        ArrayList al = new ArrayList();
        public Form1()
        {
            //I didn't use FillValues() to load the points.  The purpose of the chart is to take a user selected
            //arraylist of datapoints and find its corresponding data point in the points collection (this could be multiple point series too).
            //If found then update that series datapoints marks.text property and set the marks.tag property to 'X' so i can 
            //iterate over the collection again and set the marks.text property to an empty string in the 
            //marks.items collection where the tag property is not ="X";
            //I get a sense that the data must be loaded sorted by X acsending for the marks.items[n] to 
            //work correctly.  Is that by design?  My data typically comes from a database.  I can always make
            //sure it is sorted as such but it seems to be a limitation of the collection.
                      
            
            InitializeComponent();
            //this one works closest to what i want
            //however if i rearrange the data points
            //,the datapoint that is out of order doesn't show up with a Mark on the chart 
            //IF the datapoints are in perfect order then they all show up.
            //The code to show only selected marks works fine in either case as long as the one
            //that doesn't have a mark is not in the match list.
            //InitializeChart();

            //uncomment below to see the effects of a different loading strategy. i.e. no marks show up on 
            //the chart and the code to show selected marks doesn't work.

            InitializeChart1();

        }
        void InitializeChart()
        {
            //to maintain the bottom axis label style
            tChart1.Axes.Bottom.Labels.Style = Steema.TeeChart.AxisLabelStyle.Value;
            //just in case... :)
            tChart1.Series[0].Marks.Items.Clear();
            
            //load the data
            int iPoint = this.tChart1.Series[0].Add(1.0, 3.33);
            tChart1.Series[0].Marks.Items[iPoint].Text = "A";
                    
            iPoint = this.tChart1.Series[0].Add(2.0, 4.44);
            tChart1.Series[0].Marks.Items[iPoint].Text = "B";

           
            iPoint = this.tChart1.Series[0].Add(3.0, 5.55);
            tChart1.Series[0].Marks.Items[iPoint].Text = "D";

            
            iPoint = this.tChart1.Series[0].Add(4.0, 6.66);
            tChart1.Series[0].Marks.Items[iPoint].Text = "E";

           
            iPoint = this.tChart1.Series[0].Add(5.0, 7.66);
            tChart1.Series[0].Marks.Items[iPoint].Text = "G";

            
            iPoint = this.tChart1.Series[0].Add(6.0, 8.66);
            tChart1.Series[0].Marks.Items[iPoint].Text = "S";

            //change the 7.0 to 8.0 or any value greater than the last value(7.1) to see error in chart
            iPoint = this.tChart1.Series[0].Add(7.0, 9.66);
            tChart1.Series[0].Marks.Items[iPoint].Text = "K";
            
            iPoint = this.tChart1.Series[0].Add(7.1, 16.66);
            tChart1.Series[0].Marks.Items[iPoint].Text = "W"; 

            //i use an arraylist of objects that get pulled from the chart by the user
            // I have simulated that here for brevity
            
            SelectedObjects so = new SelectedObjects();
            so.OldValue = "A";
            so.NewValue = "a";//this would be the new mark value to be displayed on the chart
                              //if there were a match in the series data vs the user data
            al.Add(so);
            
            so = new SelectedObjects();
            so.OldValue = "B";
            so.NewValue = "b";
            al.Add(so);
            
            so = new SelectedObjects();
            so.OldValue = "K";
            so.NewValue = "k";
            al.Add(so);
            
            so = new SelectedObjects();
            so.OldValue = "S";
            so.NewValue = "s";
            al.Add(so);
            
           tChart1.Series[0].Marks.Visible = true;
           
        }
        void InitializeChart1()
        {
            tChart1.Axes.Bottom.Labels.Style = Steema.TeeChart.AxisLabelStyle.Value;

            tChart1.Series[0].Marks.Items.Clear();
            // this is the same as above but using the Add overload
            int iPoint = this.tChart1.Series[0].Add(1.0, 3.33, "A");

            iPoint = this.tChart1.Series[0].Add(2.0, 4.44, "B");

            iPoint = this.tChart1.Series[0].Add(3.0, 5.55, "D");

            iPoint = this.tChart1.Series[0].Add(4.0, 6.66, "E");

            iPoint = this.tChart1.Series[0].Add(5.0, 7.66, "G");

            iPoint = this.tChart1.Series[0].Add(6.0, 8.66, "S");

            iPoint = this.tChart1.Series[0].Add(7.0, 9.66, "K");

            iPoint = this.tChart1.Series[0].Add(8.0, 16.66, "W");
            



            SelectedObjects so = new SelectedObjects();
            so.OldValue = "A";
            so.NewValue = "a";
            al.Add(so);

            so = new SelectedObjects();
            so.OldValue = "B";
            so.NewValue = "b";
            al.Add(so);

            so = new SelectedObjects();
            so.OldValue = "K";
            so.NewValue = "k";
            al.Add(so);

            so = new SelectedObjects();
            so.OldValue = "S";
            so.NewValue = "s";
            al.Add(so);

            tChart1.Series[0].Marks.Visible = true;

        }

        private void points1_GetSeriesMark(Steema.TeeChart.Styles.Series series, Steema.TeeChart.Styles.GetSeriesMarkEventArgs e)
        {
            if (e.ValueIndex > -1)
            {
                e.MarkText = series.Marks.Items[e.ValueIndex].Text;
                Console.WriteLine(e.MarkText.ToString() + "," + e.ValueIndex.ToString() + "," + series.Marks.Items[e.ValueIndex].Text.ToString());
            } 

        }
        //this button starts the process of iterating over the series data and the user array data to find matches 
        private void btnbutton1_Click(object sender, EventArgs e)
        {
            for (int i = 0; i < tChart1.Chart.Series[0].Count; i++)
            {
                Console.WriteLine("Series Value: " + tChart1.Chart.Series[0].Marks.Items[i].Text.ToString());
                int x = 0;
                while (x != al.Count)//spin thru the user arraylist to find a match to the series data
                {
                    SelectedObjects so = new SelectedObjects();
                    so = (SelectedObjects)al[x];
                    if (tChart1.Chart.Series[0].Marks.Items[i].Text.ToString() == so.OldValue.ToString())
                    {
                        //if there is a match then mark the collection 
                        //with an X and change to the new mark.item[n].text value                        
                        Console.WriteLine("Match");tChart1.Chart.Series[0].Marks.Items[i].Text = so.NewValue.ToString();
                        tChart1.Chart.Series[0].Marks.Items[i].Tag = "X";
                        x++;
                        break;
                    }

                    x++;
                }
                
            }

            //now go over the series data.marks.items[n] again to remove the unwanted marks
            for (int x = 0; x < tChart1.Series[0].Count; x++)
            {
                if (tChart1.Series[0].Marks.Items[x].Tag == null)
                {
                    tChart1.Series[0].Marks.Items[x].Text = "";
                }

            }
            
            
        }
    }

    public class SelectedObjects
    {
        public SelectedObjects() { }

        private string oldValue;
        private string newValue;

        public string OldValue
        {
            get { return oldValue; }
            set { oldValue = value; }
        }
        public string NewValue
        {
            get { return newValue; }
            set { newValue = value; }
        }
    }
}

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			tChart1[0].XValues.Order = Steema.TeeChart.Styles.ValueListOrder.None;