## XmlConvert::VerifyWhitespace method


Returns the passed-in string instance if all the characters in the string argument are valid whitespace characters.

```cpp
static String System::Xml::XmlConvert::VerifyWhitespace(const String &content)
```


| Parameter | Type | Description |
| --- | --- | --- |
| content | const String\& | [String](../../../system/string/) to verify. |

### ReturnValue

The passed-in string instance if all the characters in the string argument are valid whitespace characters, otherwise **nullptr**.

## See Also

* Class [String](../../../system/string/)
* Class [XmlConvert](../)
* Namespace [System::Xml](../../)
* Library [Aspose.PUB for C++](../../../)