I uploaded DuellingCharts.zip to your upload page...
It includes a workaround in the code also. I found that forcing the Charts to re-draw on every CusrorTool.OnChange event seems to work OK.

Thanks...

I'm evaluating the latest TeeChart for .NET... I have two charts (ChartA, ChartB) setup exactly the same with a CursorTool on both charts. Moving the cursor on one Chart updates the Series data on the other Chart. The odd behavior is that when moving the cursor on ChartA the cursor redraws very quic...

Hi Pep,


The last time I saw the failure was when the program ran overnight (more than 12 hours). Also running that night was a virus scan program which loaded down the CPU. My thinking is that the crash may happen when the CPU is loaded and has been running for a while.

Jim

Hi Pep,

I finally have seen the crash in my demo program. It had to run overnight to produce it. I have zipped the project up and will post it in the newsgroup for your attention.

It is a Visual Studio .NET 2003 project and you may have to redirect to the proper teechart.dll.


Jim

I am using the latest TeeChart.DLL (ver 1.1.1864.22788) and after several execution cycles of drawing a trend graph (adding points on the end of lines in realtime) the graph control crashes with a system exception. The crash appears as a Big Red X in the chart area with a red square outline and whit...

Hi Chris, I am a little confussed at your reply. The Chart Listbox does not have a publicly accessible property of AutoRepaint. The TeeChart does have this property and setting it to false has no effect on the flickering problem of the Chart Listbox. The only reason I asked about double-buffering is...

Hi Chris, Thanks. With that clue I figured it out in my main application and all is working. The only remaining issue that would be nice to have fixed but is not critical is that when I initially set the color of the lines, the chartlistbox flickers as a result of this change. So basically, if I hav...

Hi Chris,

I have corrected that problem (setting the color each time) since I sent the sample to you and it still does not solve the flickering problem.

Thanks,
Jim

Hi Chris,

I provided a sample in the public.attachments newsgroup that shows the chartlistbox flickering.

I did not mention a button flickering problem so I am a little confussed as to what you are refering to in your reply.

Hi Chris, 1) Go to the Form1.vb Designer screen and change the Anchor to Top,Left,Bottom, Right. 2) Recompile and Run. 3) Put the line anywhere in the graph and move the mouse pointer straight up outside the graph area. 4) Resize the window and the text will not follow the series lines but does stic...

More info for you. The easiest way to see this problem is create a form, then put a panel in the form. Put a TChart into the panel and then put a ChartListBox into the same panel. Adding points onto the graph at any interval will make the ChartListBox flicker.

Jim

I figured it out. The flickering is a result of the way I have bundled the chart and chart list box into a class to contain them. The theory is that when the chart updates its axes, it causes a repaint for the whole class, thus making the chart list box flicker. I have tried a few ways to resolve th...

Hi Pep,

I zipped up a project and uploaded it to steema.pulic.attachments that demonstrates the flicker of the chartlistbox.

Jim

Hi Pep, I took a look at you sample and we (another developer and I) had looked at annotations but they have a flaw. If you change your VB sample project so that the graph object is anchored to all four borders (Top, Left, Bottom, Right) and resize, the annotations do not stay with the line. Maximiz...

HI, I am using a 2D Line chart and updating it in real-time by adding points on the end of several series (12 to be exact). I could not figure out how to get a vertical scrollbar into a legend, so I used the ChartListBox and associated it with the chart control. This works as desired, but there is c...