# OnWillSaveAssets(string[])

> This is called by Unity when it is about to write serialized assets or Scene files to disk.

## Definition

* **Type:** Method
* **Namespace:** [UnityEditor](/engine/6000.3/script-reference/unityeditor.md)

## OnWillSaveAssets()

```csharp
public void OnWillSaveAssets(string[] arg0)
```

### Parameters

**** (string\[]): 

### Remarks

If it is implemented, it allows you to override which files are written by returning an array containing a subset of the pathnames which have been passed by Unity. Note that this function is static.

### Examples

```csharp

using UnityEngine;
using UnityEditor;
using System.Collections;

public class FileModificationWarning : AssetModificationProcessor
{
    static string[] OnWillSaveAssets(string[] paths)
    {
        Debug.Log("OnWillSaveAssets");
        foreach (string path in paths)
            Debug.Log(path);
        return paths;
    }
}
```