vb.net - namespace of .NET ComboBoxItem -

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where comboboxitem class in .net namespace of visual studio 2012? msdn says should in windows.controls there no such namespace or entry of in references list. it's not present in windows.forms. i've encountered listviewitem class, messes label tags , brackets.

comboboxitem can found if create wpf project, because namespace system.windows.controls included in presentationframework assembly.
if you're creating winforms project, cannot find comboboxitem class!
see http://msdn.microsoft.com/en-us/library/system.windows.controls.comboboxitem.aspx


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