Change windowStyle of Prism Dialogwindow - prism

Question

How can I change the window style dynamically via Trigger?
Like:
<Style TargetType="UserControl">
<Setter Property="prism:Dialog.WindowStyle" Value="{DynamicResource DefaultDialogStyleTheme}"></Setter>
<Style.Triggers>
<DataTrigger
Binding="{Binding SecondOne, UpdateSourceTrigger=PropertyChanged}"
Value="true">
<Setter Property="prism:Dialog.WindowStyle" Value="{DynamicResource DialogStyleTheme}"></Setter>
</DataTrigger>
</Style.Triggers>
</Style>`

Answer 1

You can register your own IDialogWindow implementation that has all the styles you desire.
The library's implementation's code's here (xaml) and there (code-behind) as a reference.

Answer 2

Thanks for your help :), But for example before we switched to new Prism, we've used a PopupWindowAction to raise a default window or a custom window:
var wrapperWindow = GetWindow(args.Context);
wrapperWindow.ShowDialog();
GetWindow returns a Window or CustomWindowObject.
That's the custom window style:
<Style x:Key="DialogStyleTheme" TargetType="implementation:CustomDialogWindow">
<Setter Property="WindowStyle" Value="None" />
<Setter Property="ResizeMode" Value="CanMinimize" />
<Setter Property="SizeToContent" Value="WidthAndHeight" />
<Setter Property="Background" Value="Transparent" />
<Setter Property="AllowsTransparency" Value="True" />
<Setter Property="FontSize" Value="60" />
<Setter Property="ShowInTaskbar" Value="False" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="implementation:CustomDialogWindow">
<Border BorderThickness="2" CornerRadius="10" BorderBrush="White" Background="DimGray"
x:Name="MainBorder">
<Grid Background="{TemplateBinding Background}" Margin="5,5,5,5">
<Grid.RowDefinitions>
<RowDefinition Height="Auto" />
<RowDefinition Height="30" />
<RowDefinition Height="Auto" />
</Grid.RowDefinitions>
<Grid Grid.Row="0" x:Name="MoveGrid">
<Image x:Name="Image">
<Image.Style>
<Style TargetType="Image">
<Setter Property="Stretch" Value="UniformToFill" />
<Style.Triggers>
<DataTrigger Binding="{Binding SmallTitle}" Value="true">
<Setter Property="Height" Value="40" />
</DataTrigger>
</Style.Triggers>
</Style>
</Image.Style>
</Image>
<TextBlock Text="{Binding Title}">
<TextBlock.Style>
<Style BasedOn="{StaticResource TouchHeadTextBlock}" TargetType="TextBlock">
<Style.Triggers>
<DataTrigger Binding="{Binding SmallTitle}" Value="true">
<Setter Property="FontSize" Value="25" />
</DataTrigger>
</Style.Triggers>
</Style>
</TextBlock.Style>
</TextBlock>
</Grid>
<ContentPresenter Grid.Row="2" x:Name="ContentPresenter" ClipToBounds="True" />
</Grid>
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
And I'm setting the WindowStyle in my UserControl and I want to change this style via trigger....
prism:Dialog.WindowStyle="{DynamicResource DialogStyleTheme}"
Initialization:
containerRegistry.RegisterDialog<ItemSelectionDialogView, ItemSelectionDialogViewModel>();
containerRegistry.RegisterDialogWindow<CustomDialogWindow>();