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How can I set Opacity of WebView2 control in WPF

How can I set Opacity of WebView2 control in WPF
I need to change opacity of WebView2 from 0 to 1 by using Storyboard but when I am trying to set "Opacity =0" to WebView2 it doesn't get apply.
So is there any way I can dynamically set its opacity?

WebView2 is not a native wpf control，it does not support transparency settings.
you can use CEFSharp,it provides the same feature of WebView2, and supports transparency settings.
NuGet\Install-Package CefSharp.Wpf -Version 108.4.130

It's simply impossible. WebView2 is HwndHost. it means they are native win32 windows placed exactly in location of specified in your WPF. So It's not a WPF element you can manipulate.

If you want to somehow hide the WebView for a while, you can use Visibility.
<wv2:WebView2 Visibility="Hidden" MinHeight="300" />
Above that control you can show a loading icon or something and animate it, not the WebView itself.
<Grid>
<wv2:WebView2 Visibility="Hidden" Width="500" Height="500" />
<custom:MyFancyLoadingControl Visibility="Visible" Width="500" Height="500" />
</Grid>

MediaElement XAML -> AutoPlay not a property?

I have created a MediaElement in XAML and assigned a .mpg as the source.
Looking at the XAML controls gallery from Microsoft, there are some examples such as:
<MediaPlayerElement Source="Assets/SampleMedia/fishes.wmv"
MaxWidth="400"
AutoPlay="True" />
However, I am faced with invalid markup that is returning:
The property AutoPlay was not found in type MediaElement
I have tried removing the AutoPlay and using a MediaOpened event to start the video from code behind,but there is never any trigger even?
I am not having too much success.
DO I need to add any additional resources to access certain properties?
<MediaElement x:Name="backdropMotion" Source="Images/inMotion_video.mpg"
Stretch="Fill" Margin="198,126,-326,229" Grid.Column="2"
LoadedBehavior="Play" IsEnabled="True" IsMuted="True"
Grid.Row="1" Grid.ColumnSpan="2" MediaOpened="MediaOpenedEvent"
AutoPlay="True"
>
Ultimately, I am trying to run a media element to a panel that effectively acts as an animated background, looping almost like a .gif. First step is to get the element running.

What is the equivalent way to use Bitmap,Graphics,PictureBox & BitmapCopy() in WPF?

I'll try to explain my problem clearly.
I have a working code in WinForms that has a Board (PictureBox) that shows an image thats generated from a list of users controls (win-forms) by the function UserControl.BitmapCopy() for each user control.
This process begins with a blank image (Graphic type), and for each user control I draw it in a specific location with the function BitmapCopy() of the user control.
The result is an image that looks like a real form (with buttons,labels,etc.), but it’s just an image.
Then I show this image in a picture Box.
Now I need to implement this code in WPF, but I can’t generate an image of each user control with BitmapCopy().
I found this code that does it, so now I can generate a bitmap for each user control, but I don’t know what is the best way to create the Big Board that eventually shows a bitmap that has all the user controls images inside it, in different locations.
I would appreciate any help.

This is the equivalent in WPF:
<Window x:Class="MiscSamples.VisualBrush"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="VisualBrush" Height="300" Width="300" x:Name="Window">
<StackPanel>
<TextBlock Text="Hi, Im a Window!"/>
<TextBox Text="This is a TextBox"/>
<Slider Width="200"/>
</StackPanel>
<Window.ToolTip>
<ToolTip DataContext="{Binding PlacementTarget, RelativeSource={RelativeSource Self}}">
<Grid Height="400" Width="400">
<Grid.Background>
<VisualBrush Visual="{Binding}"/>
</Grid.Background>
</Grid>
</ToolTip>
</Window.ToolTip>
</Window>
The Window's ToolTip consists of a grid painted with VisualBrush whose Visual is the Window itself. It looks like this:
As you can see, Exactly 0 lines of C# code are required to achieve the same in WPF.

WinForm ScrollViewer

I have an application in WPF that uses ScrollViewr and I want to port it to WinForms, is there an equivalent control for WinForms?
Reason:
WPF program is slow and I can't seem to learn how to render the program properly (GameOfLife).
Code:
<ScrollViewer Name="displayPlaceHolder" HorizontalScrollBarVisibility="Auto">
<Canvas Name="display" MouseMove="display_MouseMove" MouseDown="display_MouseDown" Cursor="Cross" KeyDown="global_KeyDown" Focusable="True" />
</ScrollViewer>

You could try to use Panel with AutoScroll property enabled.

ControlTemplate

I am quite new to WPF and have a basic question :
Assume the following is xaml declaration in my xaml file
<ContentControl x:Name="interactionActivityContent" Loaded="interactionActivityContent_Loaded">
<shapes:BaseShape.DragThumbTemplate >
<ControlTemplate x:Name="interactionActivityTemplate">
<Grid AllowDrop="True" x:Name="GridTest" >
<Rectangle Name="Interaction" Fill="Yellow" Stroke="Green" StrokeThickness="2" IsHitTestVisible="True" AllowDrop="True"></Rectangle>
<local:DesignerCanvas x:Name="ActivitiesCanvasArea" Margin="1,1,1,1" IsHitTestVisible="True" AllowDrop="True" Background="Blue"></local:DesignerCanvas>
</Grid>
</ControlTemplate>
</shapes:BaseShape.DragThumbTemplate>
*shapes:BaseShape.DragThumbTemplate is coming from some different class.
*DesignerCanvas is my own custom canvas for which I want to set value at run time.
How can I access ActivitiesCanvasArea in my C# code from the code behind file?
Do I need to change the way xaml is declared. I need to apply DragThumbTemplate to my grid so that I can move around grid on main screen.

From http://blogs.msdn.com/b/wpfsdk/archive/2007/03/16/how-do-i-programmatically-interact-with-template-generated-elements-part-i.aspx
If you need to find a named element in the ControlTemplate of myButton1, like the Grid, you can use Template.FindName like so:
// Finding the grid generated by the ControlTemplate of the Button
Grid gridInTemplate = (Grid)myButton1.Template.FindName("grid", myButton1);