Hi there!

I can't find an option how to get chart bounds. I want make candlestick width and space between constant when I resize chart.

Can you suggest something?

Update: I attached image to show issue. Please help.

http://i47.tinypic.com/28sxwrl.jpg

Hi Ilia,

You can get the chart bounds by installing a paint callback:

private void Form1_Load(object sender, EventArgs e)
{
this.nChartControl1.Charts[0].PaintCallback = new NMyPaintCallback();
}

class NMyPaintCallback : NPaintCallback
{
public NMyPaintCallback()
{
}

public override void OnBeforePaint(NPanel panel, NPanelPaintEventArgs eventArgs)
{
NChart chart = (NChart)panel;
Debug.WriteLine(chart.Bounds.ToString());
}
}

This is necessary because the chart bounds are valid only after the control has been recalculated.

Hope this helps - let me know if you meet any problems.

Best regards,
Bob

this bounds size is same as ContentBounds, ContentArea.Bounds or MarginsArea. I need a way to get chart only size, wihtout axes and labels.
may be somehow I can get axis width? I will substract axis width from chart bounds width and get size I need

Hi Ilia,

I see - this is kind of tricky to accompish. The idea is to dock a content panel to the chart plot area and get this panel bounds. The following code shows how to  do it:

private void Form1_Load(object sender, EventArgs e)
{
  NChart chart = nChartControl1.Charts[0];

  NBarSeries bar = new NBarSeries();
  bar.Values.Add(10);
  bar.Values.Add(20);
  bar.Values.Add(30);
  chart.Series.Add(bar);

  chart.PositionChildPanelsInContentBounds = true;

  NWatermark panel = new NWatermark();

  panel.FillStyle = new NColorFillStyle(Color.FromArgb(0, Color.White));
  panel.StandardFrameStyle.Visible = false;
  panel.Dock = DockStyle.Fill;
  panel.PaintCallback = new NMyPaintCallback();

  chart.ChildPanels.Add(panel);
}

class NMyPaintCallback : NPaintCallback
{
  public NMyPaintCallback()
  {
  }

  public override void OnAfterPaint(NPanel panel, NPanelPaintEventArgs eventArgs)
  {
    NContentPanel contentPanel = (NContentPanel)panel;
    eventArgs.Graphics.PaintRectangle(
    new NColorFillStyle(Color.FromArgb(35, Color.Red)),
    null,
    contentPanel.ContentBounds);
  }
}

Are these the intended bounds?

Best regards,
Bob

 

 

Yes! It works Thanks a lot.