protected override void OnLoaded()
{
this.DataContext
= this.viewModel
= this.item is not null
? new ViewModelItemTooltipSolarPanelControl(this.item)
: new ViewModelItemTooltipSolarPanelControl(this.protoItemSolarPanel);
}
protected override void OnUnloaded()
{
this.DataContext = null;
this.viewModel.Dispose();
this.viewModel = null;
}
