Steema Central

Posted: **Fri Apr 27, 2018 6:05 am**

Hi Steema Support,

We are facing one issue regarding TeeChart rendering. We are using the Dot Net TChart version 2012.
The problem is that when we show/open a chart on Window form as dialog, first time form opens correctly.

: img1; img1.png (9.52 KiB) Viewed 7742 times

When we close the dialog and again reopens it (without creating the new instance of the form), we got crash on teechart.

: img2; img2.png (38.25 KiB) Viewed 7741 times

Please the the demo in attachments.

teechartDemo.rar: Demo; (55.81 KiB) Downloaded 831 times

Thanks in advance.

Thanks and Regards
Planoresearch

Posted: **Fri Apr 27, 2018 10:42 am**

Hello,

Okay, I have been able to reproduce this issue in the latest source code. I'm not yet entirely sure why it happens, but certainly the problem can be mitigated with the following code.

Code: Select all

private void Form2_FormClosing(object sender, FormClosingEventArgs e)
{
     tChart1.Chart.Graphics3D.BackBuffer = null;
}

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