distinguish if DatgridVIew Checkbox is checked/Unchecked - C# winforms

When i'm staying in the same DataGridView cell and not leaving it, how can i distinguish if DatgridVIew Checkbox is checked/Unchecked?

After the first DatgridVIew Checkbox Click it calls CurrentCellDirtyStateChanged Event(Wanted behaviour, my code is there) however the next clicks call the CellClick Event, the cellclick doesn't include my code mentioned above.

I want that in every DatgridVIew Checkbox value change the same method will be called in order to put my function there.

This is my code in the CurrentCellDirtyStateChanged Event:

http://ift.tt/2mecLet

(c# winforms)