設置hyperlinkbutton參數

                            <HyperlinkButton   NavigateUri="{Binding Path=FilePath,Converter={StaticResource mUploadFileNavigateUriConverter}}" TargetName="_blank"  
                              Margin="0,5" VerticalAlignment="Center" HorizontalAlignment="Left" >

TargetName="_blank" 表示新標籤空白頁打開