OnNext event for wizard on WPF toolkit package

Question

I'm using by WPF toolkit package for wizard class. From one Page I would like to jump to another Page based on selection of radio button (If click on Yes, so go from Page 3 to Page 4, otherwise, means, click on No radio button, so go from Page3 to Page5) I saw there is no OnNext event, but there is property called NextPage. I tried do:

On .xaml:
 <xctk:WizardPage.NextPage>
            <MultiBinding Converter="{StaticResource NextPageSelectionFromPage3}">
                <Binding ElementName="yesForBAM" Path="IsChecked" Mode="OneWay"/>
                <Binding ElementName="noForBAM" Path="IsChecked" Mode="OneWay"/>
            </MultiBinding>
        </xctk:WizardPage.NextPage>

On .xaml.cs:
public class NextPageSelectionFromPage3 : IMultiValueConverter
{
    public object Convert(object[] values, Type targetType, object parameter, System.Globalization.CultureInfo culture)
    {
        if (values[0] is bool && values[1] is bool)
            if ((bool)values[0])
                return "Page4";
        return "Page5";

    }

    public object[] ConvertBack(object value, Type[] targetTypes, object parameter, System.Globalization.CultureInfo culture)
    {
        throw new NotImplementedException();
    }
}

Any ideas how to implement dependency OnNext event?

Thanks!

Answer 1

Problem with your converter is that you return string, while NextPage property is of type WizardPage. But you can do this with Triggers in pure XAML, without need of converters:

        <xctk:WizardPage>
            <xctk:WizardPage.Style>
                <Style TargetType="{x:Type xctk:WizardPage}">
                    <Style.Triggers>
                        <DataTrigger Binding="{Binding IsChecked, ElementName=yesForBAM}" Value="True">
                            <Setter Property="NextPage" Value="{Binding ElementName=page4}" />
                        </DataTrigger>
                        <DataTrigger Binding="{Binding IsChecked, ElementName=noForBAM}" Value="True">
                            <Setter Property="NextPage" Value="{Binding ElementName=page5}" />
                        </DataTrigger>
                    </Style.Triggers>
                </Style>
            </xctk:WizardPage.Style>


            <StackPanel Orientation="Vertical">
                <TextBlock Text="3" />
                <RadioButton Name="yesForBAM" Content="Show 4 page" IsChecked="True"/>
                <RadioButton Name="noForBAM" Content="Do not show 4 page"/>
            </StackPanel>
        </xctk:WizardPage>

        <xctk:WizardPage Name="page4">
            <TextBlock Text="4" />

        </xctk:WizardPage>

        <xctk:WizardPage Name="page5">
            <TextBlock Text="5" />
        </xctk:WizardPage>

Or with converter. Main idea is still that you should return WizardPage, not string.

C#

public class NextPageSelectionFromPage3 : IMultiValueConverter
{
    public object Convert(object[] values, Type targetType, object parameter, System.Globalization.CultureInfo culture)
    {
        if (values[0] is bool && values[1] is bool)
            if ((bool)values[0])
                return values[2];

        return values[3];
    }

    public object[] ConvertBack(object value, Type[] targetTypes, object parameter, System.Globalization.CultureInfo culture)
    {
        throw new NotImplementedException();
    }
}

XAML

            <xctk:WizardPage.NextPage>
                <MultiBinding Converter="{StaticResource NextPageSelectionFromPage3}">
                    <Binding ElementName="yesForBAM" Path="IsChecked" Mode="OneWay"/>
                    <Binding ElementName="noForBAM" Path="IsChecked" Mode="OneWay"/>
                    <Binding ElementName="page4" Mode="OneWay"/>
                    <Binding ElementName="page5" Mode="OneWay"/>
                </MultiBinding>
            </xctk:WizardPage.NextPage>