Steema Central

Posted: **Tue Sep 11, 2018 5:36 am**

I am trying to dynamically create a TSeriesBandTool tool in C++Builder 10.1 using code such as ...

TSeriesBandTool* ChartTool = new TSeriesBandTool(NULL);
TTeeCustomTool* customTool = Chart->Tools->Add(ChartTool);

TSeriesBandTool* Tool = dynamic_cast<TSeriesBandTool*>(customTool);
Tool->Series = MaxLine;
Tool->Series->Legend->Visible = false;
Tool->Series2 = MinLine;
Tool->Series2->Legend->Visible = false;
Tool->Brush->BackColor = TColor(16051931);
Tool->DrawBehindSeries = true;
Tool->Transparency = 50;
Tool->Active = true;

I am using TeeChart Pro v2017.21.170329 32 bit.

The code compiles and runs but the area between MinLine and MaxLine is not coloured.
Similar code works in another form where the TSeriesBandTool is statically created using the Chart Editor.

Can you help please.

Posted: **Wed Sep 12, 2018 10:10 am**

Hello,

We've tested it here and this seems to work fine here:

: seriesband.png (27.43 KiB) Viewed 7695 times

Find below the code I've tested with TeeChart Pro VCL/FMX v2018.25 and RAD Studio 10.1 Berlin:

Code: Select all

    Chart1->View3D=False;
    Chart1->Legend->Hide();

    Chart1->AddSeries(new TLineSeries(NULL));
    Chart1->AddSeries(new TLineSeries(NULL));

    Chart1->Series[0]->FillSampleValues();
    Chart1->Series[1]->FillSampleValues();

    TSeriesBandTool* ChartTool = new TSeriesBandTool(NULL);
    TTeeCustomTool* customTool = Chart1->Tools->Add(ChartTool);
    TSeriesBandTool* Tool = dynamic_cast<TSeriesBandTool*>(customTool);
    Tool->Series = Chart1->Series[0];
    Tool->Series2 = Chart1->Series[1];
    Tool->Brush->BackColor = TColor(16051931);
    Tool->DrawBehindSeries = true;
    Tool->Transparency = 50;
    Tool->Active = true;

What TeeChart version are you using?
Could you please test the code above in a new simple test project?
If you still find problems with it, please arrange a simple example project we can run as-is to reproduce the problem here.

Thanks in advance.

Steema Central

TSeriesBandTool with C++Builder 10.1

TSeriesBandTool with C++Builder 10.1

Re: TSeriesBandTool with C++Builder 10.1