## BeforeSavingEventArgs::get_DocumentNumber method


当前 [XPS](../../../aspose.page.xps/) 包内的文档编号。

```cpp
int32_t Aspose::Page::XPS::Features::EventBasedModifications::BeforeSavingEventArgs<T>::get_DocumentNumber() const
```

## 另见

* Class [BeforeSavingEventArgs](../)
* Namespace [Aspose::Page::XPS::Features::EventBasedModifications](../../)
* Library [Aspose.Page for C++](../../../)