Merge Header and Cells in DataGridView Windows Forms C#

I have a requirement to display data in the following format. I am trying to find a way to merge cells or provide colspan for the cells to achieve the functionality

Found couple of articles which provides some good idea on how to achieve it. I have atleast 10 rows and 24 columns per row so performance is also a factor

https://www.codeproject.com/Articles/34037/DataGridVewTextBoxCell-with-Span-Behaviour

http://forums.codeguru.com/showthread.php?415930-DataGridView-Merging-Cells

Let me know is there any other way to implement it or should I go with WPF grid in windows forms and if Yes how to implement it?

Thanks for your time