private void OnItemSourceChanged(Wizard wizard, AvaloniaPropertyChangedEventArgs e)
{
if (Items == null)
{
Items = new AvaloniaList <WizardPage>();
}
if (e.NewValue == null)
{
return;
}
var list = e.NewValue as IEnumerable <IWizardPageVM>;
if (list != null)
{
foreach (IWizardPageVM wizardPageVM in list)
{
IWizardPageVM vm = wizardPageVM as IWizardPageVM;
WizardPage wizardPage = new WizardPage();
wizardPage.DataContext = vm;
wizardPage.CanCancel = CanCancel;
(this.Items as AvaloniaList <WizardPage>).Add(wizardPage);
}
}
}
private void WizardPage_DataContextChanged(object sender, EventArgs e)
{
if (this.DataContext is IWizardPageVM)
{
IWizardPageVM wizardPageVM = this.DataContext as IWizardPageVM;
Title = wizardPageVM.Title;
Description = wizardPageVM.Description;
PageType = wizardPageVM.PageType;
}
}
private void OnCurrentWizardPageVM(Wizard o, AvaloniaPropertyChangedEventArgs e)
{
if (e.NewValue == null)
{
return;
}
IWizardPageVM wizardPageVM = e.NewValue as IWizardPageVM;
CurrentPage = this.Items.OfType <WizardPage>().FirstOrDefault(x => x.DataContext == wizardPageVM);
}
private void ExecutePreviousPageCommand()
{
IWizardPageVM previousPage = null;
var currentIndex = WizardPages.IndexOf(CurrentPage);
var previousPageIndex = currentIndex - 1;
if (previousPageIndex >= 0 && previousPageIndex < WizardPages.Count)
{
previousPage = WizardPages[previousPageIndex];
}
CurrentPage = previousPage;
UpdatePageCommand();
}
private void ExecuteNextPageCommand()
{
IWizardPageVM nextPage = null;
var currentIndex = WizardPages.IndexOf(CurrentPage);
var nextPageIndex = currentIndex + 1;
if (nextPageIndex < WizardPages.Count)
{
nextPage = WizardPages[nextPageIndex];
}
CurrentPage = nextPage;
UpdatePageCommand();
}
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
if (value == null)
{
return(AvaloniaProperty.UnsetValue);
}
var list = value as IEnumerable <IWizardPageVM>;
var result = new AvaloniaList <WizardPage>();
foreach (IWizardPageVM wizardPageVM in list)
{
IWizardPageVM vm = wizardPageVM as IWizardPageVM;
WizardPage wizardPage = new WizardPage();
wizardPage.DataContext = vm;
result.Add(wizardPage);
}
return(result);
}
