private void RefreshFrameList()
{
int index = this.listBoxFrames.SelectedIndex;
this.listBoxFrames.BeginUpdate();
this.listBoxFrames.Items.Clear();
for (int i = 0; i < this._animation.frames.Count; i++)
this.listBoxFrames.Items.Add(String.Format("#{0:d3}", i + 1));
this.listBoxFrames.SelectedIndex = index.Clamp(0, this.listBoxFrames.Items.Count - 1);
this.listBoxFrames.EndUpdate();
}