static void OnIndexChanged(DependencyObject sender, DependencyPropertyChangedEventArgs e)
{
ArtControl me = sender as ArtControl;
if (me != null)
{
if (me.Index >= 0)
{
me.SelectedArt = me.Data.Art[me.Index];
}
else
{
me.SelectedArt = null;
}
}
}
static void OnDataChanged(DependencyObject sender, DependencyPropertyChangedEventArgs e)
{
ArtControl me = sender as ArtControl;
if (me != null)
{
if (me.Data != null && me.Data.Art != null && me.Data.Art.Count > 0)
{
if (me.Index == 0)
{
me.SelectedArt = me.Data.Art[0];
}
else
{
me.Index = 0;
}
}
else
{
me.Index = -1;
}
}
}