转自 http://www.cnblogs.com/sinozhang1988/archive/2012/11/28/2792804.html
“未找到程序集 WindowsFormsIntegration 请验证没有缺少程序集引用。”
右击References-->Browse-->C:Program Files (x86)Reference AssembliesMicrosoftFrameworkv3.0Frameworkv3.0WindowsFormsIntegration.dll