[SOLVED] TChartSeries.AddNull raises an external FLOAT exception on WIn32

[dsiders]

I had to recompile an application that I had not touched for a while, a found that TListChartSource.AddNull now raises an exception that never happened in the past. This is on Windows 8.1

I replaced TChartSeries.AddNull('') with TChartSeries.ListSource.Add(iPos, SafeNan) - which is what AddNuill does but with an actual value for the X-axis. IOW Add(SafeNan, SafeNan) raises an exception but giving an x-axis value does not.

Have you seen this before? And should I file a bug report?

[wp]

Your description is a bit misleading because TListChartSource does not have such a method, but TChartSeries has. But calling AddNull to an otherwise empty TLineSeries does indeed lead to an exception.

Should be fixed now in Laz/main, and I added a unit test for it. Please test, I am not 100% sure if the fix is correct.

[dsiders]

Your description is a bit misleading because TListChartSource does not have such a method, but TChartSeries has. But calling AddNull to an otherwise empty TLineSeries does indeed lead to an exception.

Should be fixed now in Laz/main, and I added a unit test for it. Please test, I am not 100% sure if the fix is correct.

Sorry about the bad description. And Thanks for the quick fix. I should be able to try it out in a couple of hours.

[dsiders]

Your description is a bit misleading because TListChartSource does not have such a method, but TChartSeries has. But calling AddNull to an otherwise empty TLineSeries does indeed lead to an exception.

Should be fixed now in Laz/main, and I added a unit test for it. Please test, I am not 100% sure if the fix is correct.

Sorry about the bad description. And Thanks for the quick fix. I should be able to try it out in a couple of hours.

I can confirm that TChartSeries.AddNull no longer raises the FLOAT exception in my use case. Thanks again.