checked list box in windows form application

Question

Good morning all,  I am new  to .net;

In window form application, I have checked  list box and listbox,textbox and search button,

In,checked list box contain more version , and select a versions and enter search in term in textbox and  enter a search button,

It shows version based code in list box ,,that time uncheck the any one item in checklist box  it automatically removes that that uncheck  version contained item in list box,

Please help me,,,