Kim, I changed the lines you telled me but I get the same result. I never get the line on my graphic.

Sorry for the ColumnChart ChartType on the appearenceLine, it was a copy/paste mistake I made when I copied the code on the forum.

Here's my code with the modified lines if you want to look at it:

xaxis2.SetLabelAxisType = UltraChart.Core.Layers.SetLabelAxisType.ContinuousData

Dim seriesLine As New UltraChart.Resources.Appearance.NumericSeries

seriesColumn.Data.LabelColumn = "Mois"

seriesColumn.Data.ValueColumn = "CoutVoulu"

seriesLine.Data.LabelColumn = "Mois2"

seriesLine.Data.ValueColumn = "CoutVoulu2"

Thanks

I also could not reproduce this with 8.1.20081.1000. Your line might be drawn behind the columns for whatever reason, which you can test by either setting yaxis.RangeMax to 150 or setting your column layer to be invisible. If you can see your line then, maybe it's the gradient on your columns that's causing the line to be hidden. Try pasting your code in a brand new project, as I'm certain you won't be able to reproduce the problem there, just as I was unable to do the same.

Hi Max,
I did what you told me. I created a new project with the same code but the result is still the same... I don't know what to do... Then I give you all the code I have done to obtain the wrong result. If you have an idea or anything to try, I'm wide open. Here are the only two files I have in my vb windows application.

My Form1.vb file

Imports Infragistics

Dim seriesLine As New UltraChart.Resources.Appearance.NumericSeries

seriesColumn.Data.LabelColumn = "Mois"

seriesColumn.Data.ValueColumn = "CoutVoulu"

seriesLine.Data.LabelColumn = "Mois2"

seriesLine.Data.ValueColumn = "CoutVoulu2"

End Sub

Dim bob As New DataTable()

bob.Columns.Add("Mois", System.Type.GetType("System.String"))

rowzz("Mois") = MonthName(i)

Next

End Function

Dim bob As New DataTable()

bob.Columns.Add("Mois2", System.Type.GetType("System.String"))

rowzz("Mois2") = MonthName(i)

Next

End Function

End Class

My Form1.Designer.vb file

----------------------------------------------------

Inherits System.Windows.Forms.Form

Protected Overrides Sub Dispose(ByVal disposing As Boolean)

Try

If disposing AndAlso components IsNot Nothing Then

End If

Finally

End Try

End Sub

Private components As System.ComponentModel.IContainer

Me.components = New System.ComponentModel.Container

CType(Me.chtMainGraph, System.ComponentModel.ISupportInitialize).BeginInit()

Me.chtMainGraph.Location = New System.Drawing.Point(12, 12)

Me.chtMainGraph.Name = "chtMainGraph"

Me.chtMainGraph.TabIndex = 2

Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font

Me.Controls.Add(Me.chtMainGraph)

Me.Name = "Form1"

Me.ResumeLayout(False)

End Sub

End Class

yannh,

I believe I found the issue- in your GetSecondaryData() function, the integer values are all negative.  You have defined both Y axes to have positive values, so you never see the negative values in your chart.  Change the integer values to be positive, and you should see the line in your chart.

I have a similar problem. Here is the markup:

<ig:UltraChart runat="server" ID="chartUtilization" ChartType="Composite" Width="450px"
                                        Height="300px" BackgroundImageFileName="" BorderColor="Black" BorderWidth="1px"
                                        EmptyChartText="Data Not Available. Please call UltraChart.Data.DataBind() after setting valid Data.DataSource"
                                        Version="8.1">
                                        <CompositeChart>
                                            <ChartAreas>
                                                <igchartprop:ChartArea Key="MainArea" Bounds="0,0,450,270" Border-Thickness="0">
                                                    <Axes>
                                                        <igchartprop:AxisItem Key="XAxis" Extent="20" DataType="String" OrientationType="X_Axis">
                                                            <MajorGridLines Visible="True" DrawStyle="Dot" Color="Gainsboro" Thickness="1" AlphaLevel="255">
                                                            </MajorGridLines>
                                                            <MinorGridLines Visible="False" DrawStyle="Dot" Color="LightGray" Thickness="1" AlphaLevel="255">
                                                            </MinorGridLines>
                                                            <Labels ItemFormatString="" HorizontalAlign="Near" VerticalAlign="Center" Orientation="Horizontal">
                                                                <SeriesLabels HorizontalAlign="Center" VerticalAlign="Center" Orientation="Horizontal">
                                                                </SeriesLabels>
                                                            </Labels>
                                                        </igchartprop:AxisItem>
                                                        <igchartprop:AxisItem Key="YAxis" Extent="30" DataType="Numeric" OrientationType="Y_Axis">
                                                            <MajorGridLines Visible="True" DrawStyle="Dot" Color="Gainsboro" Thickness="1" AlphaLevel="255">
                                                            </MajorGridLines>
                                                            <MinorGridLines Visible="False" DrawStyle="Dot" Color="LightGray" Thickness="1" AlphaLevel="255">
                                                            </MinorGridLines>
                                                            <Labels ItemFormatString="<DATA_VALUE:##>" HorizontalAlign="Near" VerticalAlign="Center"
                                                                Orientation="Horizontal">
                                                                <SeriesLabels HorizontalAlign="Center" VerticalAlign="Center" Orientation="Horizontal">
                                                                </SeriesLabels>
                                                            </Labels>
                                                        </igchartprop:AxisItem>
                                                    </Axes>
                                                    <GridPE ElementType="None" />
                                                    <Border Thickness="0" />
                                                </igchartprop:ChartArea>
                                            </ChartAreas>
                                            <ChartLayers>
                                                <igchartprop:ChartLayerAppearance ChartType="LineChart" Key="Utilization" AxisXKey="XAxis"
                                                    AxisYKey="YAxis" SwapRowsAndColumns="true" ChartAreaKey="MainArea" SeriesList="series1">
                                                    <ChartTypeAppearances>
                                                        <igchartprop:LineChartAppearance Thickness="1">
                                                        </igchartprop:LineChartAppearance>
                                                    </ChartTypeAppearances>
                                                </igchartprop:ChartLayerAppearance>
                                            </ChartLayers>
                                            <Legends>
                                                <igchartprop:CompositeLegend Bounds="10,265,430,25" />
                                            </Legends>
                                        </CompositeChart>
                                    </ig:UltraChart>

For the code behind i tried this:

        XYSeries nsUtilization = new XYSeries { Label = "Utilization" },
            nsChargeability = new XYSeries { Label = "Chargeability" };
        nsUtilization.PEs.Add(new PaintElement(Color.Blue));
        nsChargeability.PEs.Add(new PaintElement(Color.Red));

        for (int i = 1; i <= 13; ++i)
        {
            double? util = dataUtilization.First(r => r.Actual.Period == i).Actual.USD
                , charg = dataChargeability.First(r => r.Actual.Period == i).Actual.USD;
            if (util == null || charg == null) continue;

            util = util.Value * 100;
            charg = charg.Value * 100;

            nsUtilization.Points.Add(new XYDataPoint(i, util.Value, i.ToString(), false));
            nsChargeability.Points.Add(new XYDataPoint(i, charg.Value, i.ToString(), false));

        }
        chartUtilization.CompositeChart.Series.Add(nsUtilization);
        chartUtilization.CompositeChart.ChartLayers[0].Series.Add(nsUtilization);
        chartUtilization.CompositeChart.Series.Add(nsChargeability);
        chartUtilization.CompositeChart.ChartLayers[0].Series.Add(nsChargeability);

And this:

        NumericSeries nsUtilization;
        for (int i = 1; i <= 13; ++i)
        {
            double? util = dataUtilization.First(r => r.Actual.Period == i).Actual.USD
                , charg = dataChargeability.First(r => r.Actual.Period == i).Actual.USD;
            if (util == null || charg == null) continue;

            nsUtilization = new NumericSeries()
            {
                Label = i.ToString(),
                Visible = true,
            };
            nsUtilization.PEs.Add(new PaintElement { Fill = Color.Red });

            util = util.Value * 100;
            charg = charg.Value * 100;

            nsUtilization.Points.Add(new NumericDataPoint(util.Value, "Utilization", false) { PE = new PaintElement(Color.Blue) });
            nsUtilization.Points.Add(new NumericDataPoint(charg.Value, "Chargeability", false) { PE = new PaintElement(Color.Red) });

            chartUtilization.CompositeChart.Series.Add(nsUtilization);
            chartUtilization.CompositeChart.ChartLayers[0].Series.Add(nsUtilization);
        }

In both cases, I got a chart with correct X and Y tickmarks/range but no lines and legend is empty. Any ideas?

First, you will have to make your x axis use continuous data (requirement for line chart axes). You can do this by setting SetLabelAxisType to ContinuousData on your X axis. Otherwise, you can only plot column charts.

Also, XYSeries cannot be used for line charts. Only NumericSeries and NumericTimeSeries. XYSeries are for scatter charts.

Each layer that you want to display in the legend must be added to compositeLegend.ChartLayers collection.

Lastly, your series object needs to have its Label property set. Series without series labels are not displayed in the legend.