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how to draw multiple series for web App? over time as X-Axis


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I am running the Beta version of chartFx over the final release of VS.NET.

Am writing a web app. Now heres what I do. I have a datatable in a dataset

with 2 columns Time | Data. I can draw a chart with 1 series of Data over

Time ( on X axis).

Now I copy 2 columns with similar Time, Data values from another dataTable

and add them to the previous datatable. So now I have four columns in my

dataset.

Time | Data | Time1 | Data1

02/2/02 | 34 | 02/03/02| 22

02/2/02 | 30 | 02/03/02| 32

-- -- -- --

-- -- -- --

as shown above. The time column is a datetime column. And i draw chart

taking Time ie. from 12.00.00 Am - 12.00.00 Am next day. on X-Axis. Similar

wuld b the case for Time1 column. Time axis would always take time for a

day.

The type of chart is Lines. And X-Axis is configured for Time while Y-Axis

for Number.

Now as per what I have seen in many posts. After I get these columns in a

dataset if i follow the following rules i should b able to draw a chart with

two series. ie. with 2 diff data lines with diff color.

heres how i set the datatype.

// code

chart.DataStyle = chart.DataStyle | SoftwareFX.ChartFX.DataStyle.SerLegend;

chart.DataSource = dataSet.Tables["Graph"];

chart.DataType[0] = SoftwareFX.ChartFX.DataType.XValue;

chart.DataType[1] = SoftwareFX.ChartFX.DataType.Value;

chart.DataType[2] = SoftwareFX.ChartFX.DataType.XValue;

chart.DataType[3] = SoftwareFX.ChartFX.DataType.Value;

chart.DataBind();

// code end

Theres no error here , it goes through these statements and sets it

accordingly. But after Binding it to the data it throws the following

System.ArgumentException. which i have copied for your reference which is

internal chart exception.

Message Not a legal OleAut date.

Error Type System.ArgumentException

Error Source mscorlib

Stack Trace at System.DateTime.DoubleDateToTicks(Double value)

at System.DateTime.FromOADate(Double d)

at SoftwareFX.ChartFX.Internet.Server.Z.;(Double n)

at SoftwareFX.ChartFX.Internet.Server.9.FormatNumber(Double d)

at SoftwareFX.ChartFX.Internet.Server.9.c(Q Q, IGraphicsEx R,

Rectangle[] S, SetPropFlag& T, A U)

at SoftwareFX.ChartFX.Internet.Server.AxisCoreCollection.w(Q ,

IGraphicsEx , Rectangle[] , A )

at SoftwareFX.ChartFX.Internet.Server.ChartCore. (Q Z, IGraphicsEx ^,

Boolean _, Boolean `)

at SoftwareFX.ChartFX.Internet.Server.ChartCore.7(Q ~, IGraphicsEx ,

Rectangle& , Int32& )

at SoftwareFX.ChartFX.Internet.Server.ChartCore.5(PaintBar z,

IGraphicsEx {, Rectangle& |)

at SoftwareFX.ChartFX.Internet.Server.Chart.R(Stream %, IOutputWriter

', OutputText (, OutputText ), OutputInfo& -)

at SoftwareFX.ChartFX.Internet.Server.Chart.Y(OutputText @,

OutputText A, Boolean B)

at SoftwareFX.ChartFX.Internet.Server.Chart.Render(HtmlTextWriter

output)

at System.Web.UI.Control.RenderControl(HtmlTextWriter writer)

at ASP.CalendarTrend_aspx.__RenderPanel_chartAndGraph(HtmlTextWriter

__output, Control parameterContainer) in

http://localhost/RSEnergy/CalendarTrend.aspx:line 67

at System.Web.UI.Control.RenderChildren(HtmlTextWriter writer)

at System.Web.UI.Control.Render(HtmlTextWriter writer)

at System.Web.UI.WebControls.WebControl.RenderContents(HtmlTextWriter

writer)

at System.Web.UI.WebControls.WebControl.Render(HtmlTextWriter writer)

at System.Web.UI.Control.RenderControl(HtmlTextWriter writer)

at ASP.CalendarTrend_aspx.__Rendercalendartrend(HtmlTextWriter

__output, Control parameterContainer) in

http://localhost/RSEnergy/CalendarTrend.aspx:line 63

at System.Web.UI.Control.RenderChildren(HtmlTextWriter writer)

at System.Web.UI.HtmlControls.HtmlForm.RenderChildren(HtmlTextWriter

writer)

at

System.Web.UI.HtmlControls.HtmlContainerControl.Render(HtmlTextWriter

writer)

at System.Web.UI.HtmlControls.HtmlForm.Render(HtmlTextWriter output)

at System.Web.UI.Control.RenderControl(HtmlTextWriter writer)

at System.Web.UI.Control.RenderChildren(HtmlTextWriter writer)

at System.Web.UI.Control.Render(HtmlTextWriter writer)

at System.Web.UI.Control.RenderControl(HtmlTextWriter writer)

at System.Web.UI.Page.ProcessRequestMain()

Target Site Int64 DoubleDateToTicks(Double)

Here as seen the CalendarTrend.aspx line 67 is just an aspx page where in

the chart control is definied. thats all....don't know why it shows that

line as error line.

A detailed help or suggestion would b helpful. as soon as possible to

overcome this problem and how to go about drawing multiple series with time

as x-axis if theres any example i can look for.

Thanks

Byg

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