Change IWCGJQSimplePieChart FgColor by sourcecode

[JRehorst]

Dear Support Team,

how is it possible to set the chart color during runtime. In the options JQChartOptions I can' find the property FgColor during source code programming to set the color.

Thanks Jens

[Alexander Bulei]

Hi Jens,

First, you need use appropriate type function, depend on ChartType property:

Code: Select all

    function PieChartOptions: TIWCGJQPieChartOptions;
    function CirclifulChartOptions: TIWCGJQCirclifulChartOptions;
    function CirclesChartOptions: TIWCGJQCirclesChartOptions;


For example, if you have ChartType = spctCircliful, you need use CirclifulChartOptions.

Then, in runtime, on any option's changing (except value), you need call AjaxReRender function at end, because in this component
there is no support f or ajax changing...

here you have simple example:

delphi code

IWCGJQSimplePieChart1.ChartType:= spctCircliful;
  IWCGJQSimplePieChart1.CirclifulChartOptions.FgColor:= '#000';
  IWCGJQSimplePieChart1.CirclifulChartOptions.BgColor:= '#EEE';

  // update
  IWCGJQSimplePieChart1.AjaxReRender(True,False);

Best Regards.

[JRehorst]

Hello All,

setting of color is now OK. But when running the program I receive an error "Method RenderRegionAsync its only allowed in Ajax Processing".

Source in IWCGJQFrameCreate:
if rQuote >= 98 then
iwpieOUT.CirclifulChartOptions.FgColor := 'clWebDARKGREEN'
else if rQuote >= 96 then
iwpieOUT.CirclifulChartOptions.FgColor := 'clWebDARKORANGE'
else
iwpieOUT.CirclifulChartOptions.FgColor := 'clWebDARKRED';
iwpieOUT.Value := StrToFloat(FormatFloat('0.00', rQuote));
iwpieOUT.AjaxReRender(True, False);

How to avoid this error?

Thanks
Jens

[Alexander Bulei]

Hi Jens,

Check this topic: viewtopic.php?f=5&t=22

Then, check your Ajax property in event.

AjaxReRender works in ajax request/mode only.

Best Regards.