Steema Central

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

namespace KeyboardCursor
{

  public partial class Form1 : Form
  {
    private MyTChart tChart1;
    private Steema.TeeChart.Styles.Line line1;
    private Steema.TeeChart.Tools.CursorTool cursorTool1;

    public Form1()
    {
      InitializeComponent();

      this.tChart1 = new MyTChart();
      this.tChart1.Parent = this;
      this.tChart1.Aspect.View3D = false;
      
      this.line1 = new Steema.TeeChart.Styles.Line();
      this.tChart1.Series.Add(this.line1);            

      tChart1.KeyDown+=new KeyEventHandler(tChart1_KeyDown);

      this.cursorTool1 = new Steema.TeeChart.Tools.CursorTool();
      this.cursorTool1.Style = Steema.TeeChart.Tools.CursorToolStyles.Both;
      this.cursorTool1.FollowMouse = true;
      this.cursorTool1.Series = this.line1;
      this.tChart1.Tools.Add(this.cursorTool1);
    }

    private void Form1_Load(object sender, EventArgs e)
    {
      line1.FillSampleValues();
      cursorTool1.XValue = line1.MinXValue();
      cursorTool1.YValue = line1.MinYValue();
    }

    private void tChart1_KeyDown(object sender, KeyEventArgs e)
    {
      Cursor c = tChart1.Cursor;

      switch (e.KeyCode)
      {
        case Keys.Down:
          cursorTool1.YValue -= 1;
          break;
        case Keys.Up:
          cursorTool1.YValue += 1;
          break;
        case Keys.Left:
          cursorTool1.XValue -= 1;
          break;
        case Keys.Right:
          cursorTool1.XValue += 1;
          break;
        default: break;
      }
      Cursor.Current = c;
    }
  }

  public class MyTChart : Steema.TeeChart.TChart
  {
    protected override bool IsInputKey(Keys key)
    {
      switch (key)
      {
        case Keys.Up:
        case Keys.Down:
        case Keys.Right:
        case Keys.Left:
          return true;
      }
      return base.IsInputKey(key);
    }
  }
}

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      //...
      this.cursorTool1 = new Steema.TeeChart.Tools.CursorTool();
      this.cursorTool1.Style = Steema.TeeChart.Tools.CursorToolStyles.Both;
      this.cursorTool1.FollowMouse = true;
      this.cursorTool1.Series = this.line1;
      this.tChart1.Tools.Add(this.cursorTool1);

      tChart1.MouseEnter += new EventHandler(tChart1_MouseEnter);
      tChart1.MouseLeave += new EventHandler(tChart1_MouseLeave);
    }

    void tChart1_MouseLeave(object sender, EventArgs e)
    {
      this.checkBox1.Focus();
    }

    void tChart1_MouseEnter(object sender, EventArgs e)
    {
      tChart1.Focus();
    }

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      this.tChart1.Walls.Visible = false;