# SequentialFileName

`SequentialFileName` class provides methods for generating new sequential filename based on guid and time stamp segments using different params, e.g. existing file, MIME type or file extension.

## NewFileName()

Generates new sequential filename based on GUID and time stamp segments.

```csharp
string fileName = SequentialFileName.NewFileName(); // Returns "20220526232825-b4970420ac3a4370b3b8ff6021f01a4c".
```

Also you can use `NewFileName()` with param `existsFileName` and generate new sequential filename based on GUID and time stamp segments using extension from exists file name.

```csharp
string fileName = SequentialFileName.NewFileName("readme.txt"); // Returns "20220526232825-b4970420ac3a4370b3b8ff6021f01a4c.txt".
```

## NewFileNameWithMimeType()

Generate new sequential filename based on GUID and time stamp segments with specified MIME type.

```csharp
string fileName = SequentialFileName.NewFileNameWithMimeType("text/xml"); // Returns "20220526232825-b4970420ac3a4370b3b8ff6021f01a4c.xml".
```

## NewFileNameWithExtension()

Generate new sequential filename based on guid and time stamp segments with specified extension.

```csharp
string fileName = SequentialFileName.NewFileNameWithExtension(".csv"); // Returns "20220526232825-b4970420ac3a4370b3b8ff6021f01a4c.csv".
```