/// <summary>
/// Compares this object to another <see cref="DesignImage"/>.
/// </summary>
public int CompareTo(DesignImage other)
{
int delta = ImageSource == null ? -1 : ImageSource.CompareTo(other.ImageSource);
if (delta == 0)
{
delta = ImageValue == null ? -1 : ImageValue.CompareTo(other.ImageValue);
}
if (delta == 0)
{
delta = MimeType == null ? -1 : MimeType.CompareTo(other.MimeType);
}
return(delta);
}