## BaseWebExtensionColl::idx_set method Gets or sets an item at the specified index. ```cpp void Aspose::Words::WebExtensions::BaseWebExtensionColl::idx_set(int32_t index, T value) ``` | Paramet...... ```cpp auto doc = System::MakeObject<Aspose:...extension.docx")); ASSERT_EQ(1, doc->get_WebExtensionTaskPane()->get_Count());...