## U16String::operator+=(const U16String\&) method


Concatenate another string into this.

```cpp
U16String & Aspose::Cells::U16String::operator+=(const U16String &str)
```


| Parameter | Type | Description |
| --- | --- | --- |
| str | const U16String\& | an [U16String](../) object. |

## See Also

* Class [U16String](../)
* Class [Vector](../../vector/)
* Class [U16String](../)
* Namespace [Aspose::Cells](../../)
* Library [Aspose.Cells for C++](../../../)
## U16String::operator+=(const char*) method


Concatenate another string into this.

```cpp
U16String & Aspose::Cells::U16String::operator+=(const char *str)
```


| Parameter | Type | Description |
| --- | --- | --- |
| str | const char* | an const char* string. |

## See Also

* Class [U16String](../)
* Class [Vector](../../vector/)
* Class [U16String](../)
* Namespace [Aspose::Cells](../../)
* Library [Aspose.Cells for C++](../../../)
## U16String::operator+=(const char16_t*) method


Concatenate another string into this.

```cpp
U16String & Aspose::Cells::U16String::operator+=(const char16_t *ustr)
```


| Parameter | Type | Description |
| --- | --- | --- |
| ustr | const char16_t* | an const char16_t* string. |

## See Also

* Class [U16String](../)
* Class [Vector](../../vector/)
* Class [U16String](../)
* Namespace [Aspose::Cells](../../)
* Library [Aspose.Cells for C++](../../../)
## U16String::operator+=(const char16_t) method


Concatenate a char16_t character into this.

```cpp
U16String & Aspose::Cells::U16String::operator+=(const char16_t ch)
```


| Parameter | Type | Description |
| --- | --- | --- |
| ch | const char16_t | a char16_t character. |

## See Also

* Class [U16String](../)
* Class [Vector](../../vector/)
* Class [U16String](../)
* Namespace [Aspose::Cells](../../)
* Library [Aspose.Cells for C++](../../../)