Yes, you can set individual marker styles for the series data points:
Best Regards,Nevron Support Team
Hi Kevin,
To set a empty data point you have to set DBNull.Value or Double.NaN as a data point value. Please take a look at the following example in our Winforms demo application:
All Examples > Data Manipulation > Empty Data Points > General Example
Hello,
It seems that something went wrong with the attachment. Please attach the image as a PNG file. As for the 3D line chart - you can take a look the following example in our Windows Forms demo application:
All Examples > Chart Gallery > Line > XYZ Scatter Line