## MemoryFileSystem class

The [`MemoryFileSystem`](../memoryfilesystem) will maps the read/write operations to memory.

```csharp
public class MemoryFileSystem : FileSystem
```

## Constructors

| Name | Description |
| --- | --- |
| [MemoryFileSystem](memoryfilesystem)() | The default constructor. |

## Properties

| Name | Description |
| --- | --- |
| [FileNames](../../aspose.threed.utilities/memoryfilesystem/filenames) { get; } | File names that in this memory file system. |

## Methods

| Name | Description |
| --- | --- |
| virtual [Dispose](../../aspose.threed.utilities/filesystem/dispose)() | Dispose the File system and release its resources. |
| [GetFileContent](../../aspose.threed.utilities/memoryfilesystem/getfilecontent)(string) | Returns the raw content of the specified file. Throw FileNotFoundException if the specified file is not existing. |
| override [ReadFile](../../aspose.threed.utilities/memoryfilesystem/readfile)(string, IOConfig) | Create a stream for reading dependencies. |
| override [WriteFile](../../aspose.threed.utilities/memoryfilesystem/writefile)(string, IOConfig) | Create a stream for writing dependencies. |

### Examples

The following code shows how to export file to memory, includes the dependent file by using MemoryFileSystem.

```csharp
//create a scene with material
Scene scene = new Scene();
scene.RootNode.CreateChildNode(new Box()).Material = new LambertMaterial();
//create a save option and specify the file system, so the dependent file will be written to memory
var opt = FileFormat.WavefrontOBJ.CreateSaveOptions();
var mfs = new MemoryFileSystem();
opt.FileSystem = mfs;
//obj's material file name is associated with the obj's file name, so we need a explicit name.
opt.FileName = "test.obj";
using (var ms = new MemoryStream())
{
    scene.Save(ms, opt);
}
//the test.obj was written to variable ms, and we can also get the test.mtl file content by
var materialFile = mfs.GetFileContent("test.mtl");
```

### See Also

* class [FileSystem](../filesystem)
* namespace [Aspose.ThreeD.Utilities](../../aspose.threed.utilities)
* assembly [Aspose.3D](../../)

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