Problem with checklistbox in windows forms

Hello,

My problem about the Windows Forms "checklistbox" in Visual Studio 2012 :

I have some problems in my code because if I check an items and uncheck it, it is already blue highlighted (highlighted in yellow on the picture).

How can I resolve this problem to can check the case, and that it don't highlight the line ?

Must I use WPF ?

Thank you for your answer.