2015-06-16-sharepoint-pattern-for-allowing-unsafe-updates_002.cs

 public static class SPWebExtensions
 {
    public static void RunWithUnsafeUpdates(this SPWeb currentWeb, Action action)
    { 
        bool allowUnsafeUpdates = currentWeb.AllowUnsafeUpdates;
        currentWeb.AllowUnsafeUpdates = true;
        try
        {
            action.Invoke();
        }
        finally
        {
            currentWeb.AllowUnsafeUpdates = allowUnsafeUpdates; 
        }
    }
}