## BaseWebExtensionColl class Base class for [TaskPaneCollection](../taskpanecollection/), [WebExtensionBindingC](../webextensionbindingc/), [WebExtensionProperty](../webextensionproperty/) and [We......com/words/cpp/work-with-office-add-ins/) documentation...documentation article. ```cpp template<typename T>class BaseWebExtensionColl...