Hi

ok. I have to show this start and end points. Can you guide how can I set thse points?

Thanks

Sridhar

Handle FillSceneGraph event
Loop through the primitives
Capture Polyline primitives
Create two Symbol primitives for each polyline - one for start, one for end
Add symbols to the scenegraph

void ultraChart1_FillSceneGraph(object sender, Infragistics.UltraChart.Shared.Events.FillSceneGraphEventArgs e)
{
    PrimitiveCollection symbolicons = new PrimitiveCollection();

    foreach (Primitive p in e.SceneGraph)
    {
        Polyline poly = p as Polyline;
        if (poly != null)
        {
            Symbol s = new Symbol();
            s.icon = SymbolIcon.Circle;
            s.iconSize= SymbolIconSize.Medium;
            s.PE.Fill = Color.Black;
            s.point = poly.points[0].point;
            symbolicons.Add(s);
        }
    }
}

Try the following code to get the text labels to appear along the line. You don't need to handle FillSceneGraph, but that could have been a good alternate approach.

DataTable dt = new DataTable();
dt.Columns.Add("col1", typeof(string));
dt.Columns.Add("col2", typeof(int));
dt.Columns.Add("col3", typeof(int));
dt.Rows.Add(new object[] { "point 1", 4, 10 });
dt.Rows.Add(new object[] { "point 2", 5, 16 });
dt.Rows.Add(new object[] { "point 3", 1, 17 });
dt.Rows.Add(new object[] { "point 4", 3, 13 });
dt.Rows.Add(new object[] { "point 5", 5, 17 });

ultraChart1.ChartType = ChartType.ColumnLineChart;
ultraChart1.ColumnLineChart.ColumnData.DataSource = dt;
ultraChart1.ColumnLineChart.ColumnData.IncludeColumn(2, false);
ultraChart1.ColumnLineChart.ColumnData.RowLabelsColumn = 0;

ultraChart1.ColumnLineChart.LineData.DataSource = dt;
ultraChart1.ColumnLineChart.LineData.SwapRowsAndColumns = true;
ultraChart1.ColumnLineChart.LineData.IncludeColumn(1, false);

ultraChart1.Data.DataBind();

ChartTextAppearance chartText = new ChartTextAppearance();
chartText.Row = chartText.Column = -2;
chartText.Visible = true;
chartText.ItemFormatString = "<DATA_VALUE>";
ultraChart1.ColumnLineChart.Line.ChartText.Add(chartText);

Hello

I am facing this problem with a columnline chart.

I want the values that are ussed to make the line,  to appear along the line.

For this, I have overrided FillSceneGraph and as I saw in older posts, i have tried to get the primitives that are polyline. But there are no polyline primitives, only line primitives on my stage.

The lines primitives have just the initial point and the final one, but in this case too, I wasn't able to get its exact location.

I did something like this:

ArrayList allBoxes =  new ArrayList();

Line line;
 
            foreach (Primitive p in scene)
            {
               
                line = p as Line;
                if (line != null)
                {
                    allBoxes.Add(p);
                }
            }

            line = (Line)allBoxes[1];
           
            style.FontColor =  line.drawColor;  
            text = new Text( line.p1  , mData.Rows[0]["CONSO"].ToString(), style );
            scene.Add( text);

but line.p1 dowsn't give me what I want. the x is correct, but the Y is allways the origin of the axes.

Could you please  help me with this :((( thank you in advance

Looks like the clip bounds rectangle has been reset. Try adding this code before you add the point icons:

GraphicsContext gc = new GraphicsContext();
gc.SetClipBounds(e.ChartCore.GridLayerBounds);
e.SceneGraph.Add(gc);

ya. Great. It works. Tha But other points is just behind the axis line and this one come in front of the axis line. Looks different than other points. Pls refer the screenshot.  Is there any solution for this?

Thanks

Sridhar

Sorry, looks like some of the code got cut out of my code snippet. You have created the symbols, but they were never added to the scenegraph after the first foreach loop.

foreach (Symbol icon in symbolicons)
{
   e.SceneGraph.Add(icon);
}