HighLowSerie : CalcXPosValue goes wrong !?

[rhillebrand]

Hello,

The following line always returns : -32768

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clickedX1 = HighLow.CalcXPosValue(HighLow.LowValues[valueIndex]);

The lowvalue at index = 0.5
the highValue at index = 8.5


We want to show in the afterdraw the clicked position. The outcome must be a donut at the high pen and a donut at the low pen. Also we show the values with g.TextOut next to the HighValue (in a line serie is this :

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clickedX=Line.CalcXPos(valueIndex)), 

we cannot use this because we have 2 x values (high,Low).

This problem we have only by a HighLow Serie.

The version we use is : 1.1.2379.21122 (this version is the lastest release, but is not announced in the forums by the way)

With reagards,

Roland Hillebrand[/img]

[Narcís]

Hi Roland,

It works fine for me here using the series' clicked event like this:

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		private void HighLowStyle_Click(object sender, MouseEventArgs e)
		{
			int valueIndex = HighLowStyle.Clicked(e.X,e.Y);
			tChart1.Header.Text = HighLowStyle.XValues[valueIndex].ToString();
		}

[rhillebrand]

Hi,

This is the complete function. You use a other serie click event ?!

Code: Select all

private void GraphDetail_ClickSeries(object sender, Steema.TeeChart.Styles.Series s, int valueIndex, System.EventArgs e)
		{
			try
			{
				Steema.TeeChart.Chart tChart=((Steema.TeeChart.Web.WebChart)sender).Chart;

				clickedX=s.CalcXPos(valueIndex);
				clickedY=s.CalcYPos(valueIndex);
			

				string title = s.Title;
				
				if (s.Title.Length >30)
				{
					title = s.Title.Substring(0,30) + " .."; 
				}	
				
				title = title + "\n\r" ;

				DateTime timeStamp = DateTime.FromOADate(s.XValues[valueIndex]);  
				if (s is Steema.TeeChart.Styles.HighLow)
				{
					
					Steema.TeeChart.Styles.HighLow HighLow = (Steema.TeeChart.Styles.HighLow)s;
					
					clickedX1 = HighLow.CalcXPosValue(HighLow.LowValues[valueIndex]);
					
					clickedY1 = HighLow.CalcXPos( valueIndex);
					msgText= title + "Tijdstip : "+timeStamp.ToShortDateString()+ " " + timeStamp.ToShortTimeString()    +"\n\rMin Value: "+HighLow.LowValues[valueIndex].ToString("#0.00")+"\n\rMax Value: "+HighLow.HighValues[valueIndex].ToString("#0.00");
				
				}
				else
				{
					msgText= title + "Tijdstip : "+timeStamp.ToShortDateString()+ " " + timeStamp.ToShortTimeString()    +"\n\rValue: "+s.YValues[valueIndex].ToString("#0.00");	
				}
			}
			catch (Exception error)
			{
				HDBPageHeader.ErrorMessage = error.Message;
				General.Log.Write(error,"GraphDetail_ClickSeries",pageName);
			}
		}

In the afterdraw event we use the x / y values like so :

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private void GraphDetail_AfterDraw(object sender, Steema.TeeChart.Drawing.Graphics3D g)
		{
			try
			{
				//output text message to the rendered Chart.
				if (clickedX!=-1)
				{
					g.Font.Bold=true;
					g.Font.Color=Color.Black;
 
					// Mark the clicked spot
					g.Pen.Color = Color.White ;
					g.Pen.DrawingPen.Color = Color.White;
					
					g.Donut(clickedX,clickedY,2,2,0,360,100);  
					
					if (clickedX1 !=-1) // HighLow serie
					{
						g.Pen.Color = Color.Red ;
						g.Pen.DrawingPen.Color = Color.Red;
						g.Donut(clickedX1,clickedY1,2,2,0,360,100);
					}
 
					Steema.TeeChart.Chart tChart=((Steema.TeeChart.Web.WebChart)sender).Chart;
					int yPos=clickedY;
					int xPos = clickedX;
					int width=220;
					int height = 40;
					if (clickedX >  tChart.Series[0].CalcXPos(tChart.Series[0].Count-1)-width)     
					{
						xPos = xPos-230;
						width = 220;
					}				
					
					if (msgText.ToLower().IndexOf("min value")>0)
					{
						height=65;
					}

					g.FillRectangle(new SolidBrush(Color.WhiteSmoke) ,xPos+10, yPos+10, width, height);  
					g.TextOut(xPos+10,yPos+10,msgText);
				}
			}
			catch (Exception error)
			{
				HDBPageHeader.ErrorMessage = error.Message;
				General.Log.Write(error,"GraphDetail_AfterDraw",pageName);
			}
		}

With Regards,

Roland Hillebrand
[/code]

[Narcís]

Hi Roland,

Instead of TeeChart's ClickSeries event i use series' Click event. Please see the example I posted at the newsgroups for your other thread. This is implemented there as well.

[rhillebrand]

Hi,

We cannot use your event handler, because in asp.net is the mouseEventHandler not available.

We use instead :

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	this.GraphDetail.ClickSeries += new Steema.TeeChart.Web.WebChart.SeriesEventHandler(this.GraphDetail_ClickSeries);

With regards,

Roland Hillebrand