## BaseWebExtensionColl<T> class Base class for [`TaskPaneCollection`](../taskpanecollection/), [`WebExtensionBindingC`](../webextensionbindingc/), [`WebExtensionProperty`](../webextensionpro......com/words/net/work-with-office-add-ins/) documentation article. ```csharp public...of a collection item. | ## Properties | Name | Description | |...