> ## Documentation Index
> Fetch the complete documentation index at: https://cdktn.io/docs/llms.txt
> Use this file to discover all available pages before exploring further.
# CSharp: StringConcat
> CDKTN Core API Reference for StringConcat in CSharp.
* *Implements:* IFragmentConcatenator
Converts all fragments to strings and concats those.
Drops 'undefined's.
## Initializers
```csharp theme={null}
using Io.Cdktn;
new StringConcat();
```
| **Name** | **Type** | **Description** |
| -------- | -------- | --------------- |
***
## Methods
| **Name** | **Description** |
| -------------------------------------------------------- | ------------------------------ |
| Join | Concatenates string fragments. |
***
### `Join`
```csharp theme={null}
private object Join(object Left, object Right)
```
Concatenates string fragments.
#### `Left`Required
* *Type:* object
***
#### `Right`Required
* *Type:* object
***