<Grid>
<!-- xmlns:webview="clr-namespace:Microsoft.Toolkit.Wpf.UI.Controls;assembly=Microsoft.Toolkit.Wpf.UI.Controls.WebView" -->
<webview:WebView ... />
<Grid x:Name="Overlay"
Panel.ZIndex="1000"
Background="Red"
HorizontalAlignment="Stretch" VerticalAlignment="Stretch"/>
</Grid>
I am trying to overlay a WebView with another control (Overlay). But it seems that the WebView is always on top of other controls.
Is there a way to place controls on top of a Microsoft.Toolkit.Wpf.UI.Controls.WebView?
The Webview control is a wrapped UWP control which in turn wraps a win32 component I believe.
Due to airspace problems this control will not support transparency and will always be rendered on top. See here for a better description:
https://learn.microsoft.com/en-us/dotnet/framework/wpf/advanced/technology-regions-overview
Although it is possible to run it in a popup as a workaround, it might not be very futureproof:
"WebView controls can be hosted in a popup window. We recommend that you do not do this because support for that scenario will soon be disabled for security reasons."
See here for more
CefSharp might be a better solution. It it based on Chromium and there is a Nuget package available. In the example below a red grid is rendered over the browser:
<Grid>
<cefSharp:ChromiumWebBrowser Address="https://github.com/cefsharp/CefSharp/wiki/Frequently-asked-questions" />
<Grid x:Name="Overlay"
Height="100"
Background="Red"
HorizontalAlignment="Stretch" VerticalAlignment="Stretch"/>
</Grid>
Output:
Related
I feel like I'm missing something obvious, but:
I was hoping to use the mahapps Flyout control to do a fairly simple flyout over a webview2 control. However, the the flyout shows behind the webview2 control, leaving most of the flyout hidden.
The control is wrapped in a Grid in the code below because I noticed that if I put the webview in a StackPanel, then the webview doesn't show (no height/width measurements given) but the flyout does appear in front as expected. So I tried DockPanel and Grid which show the webview page but hide the flyout.
The hatched area on the right of the screenshot is so the user has a mouseover area which should auto expand the flyout:
And this is how the flyout renders whether webview is without a wrapper, or in a DockPanel or Grid:
<mah:MetroWindow x:Class="Fraxinus.EdBoard.UI.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:local="clr-namespace:Fraxinus.EdBoard.UI"
xmlns:wv2="clr-namespace:Microsoft.Web.WebView2.Wpf;assembly=Microsoft.Web.WebView2.Wpf"
xmlns:mah="clr-namespace:MahApps.Metro.Controls;assembly=MahApps.Metro"
mc:Ignorable="d"
Title="MainWindow" Height="450" Width="800">
<Window.Resources>
<VisualBrush x:Key="MyVisualBrush" TileMode="Tile" Viewport="0,0,5,5" ViewportUnits="Absolute" Viewbox="0,0,5,5" ViewboxUnits="Absolute">
<VisualBrush.Visual>
<Grid Background="Black">
<Path Data="M 0 5 L 5 0" Stroke="Gray" />
<Path Data="M 0 0 L 5 5" Stroke="Gray" />
</Grid>
</VisualBrush.Visual>
</VisualBrush>
</Window.Resources>
<mah:MetroWindow.Flyouts>
<mah:FlyoutsControl Grid.Column="0" Grid.Row="0" Grid.ColumnSpan="2">
<mah:Flyout x:Name="flyout" Position="Right">
<TextBlock Text="Some Text"/>
</mah:Flyout>
</mah:FlyoutsControl>
</mah:MetroWindow.Flyouts>
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="98*" />
<ColumnDefinition Width="2*" />
</Grid.ColumnDefinitions>
<Grid Grid.Column="0" Grid.Row="0">
<wv2:WebView2 Source="http://localhost:4200"></wv2:WebView2>
</Grid>
<StackPanel Grid.Column="1" Grid.Row="0" MouseEnter="StackPanel_MouseEnter" MouseLeave="StackPanel_MouseLeave" Background="{StaticResource MyVisualBrush}">
</StackPanel>
</Grid>
</mah:MetroWindow>
Also is it a simple thing to prevent the flyout from extending into the title bar?
Thanks, Luke
Yep: I have the exact same problem with MahApps Metro async dialogs displaying underneath. Menus and Context Menus work fine although the latter isn't styled like the former which is a real bummer and headache to do.
Glad I didnt try the Hamburger Menu: besides I dont want my WebView2 based Javascript Web Map to have to resize itself on every flyout of this menu if heavily loaded with serious maps!
I'll try styling the Context Menu but the answer is that I am seriously thinking of just doing all of the menus and dialogs in JavaScript leaving just the WebView2 plus Mahapps shell with an Hamburger icon which I did get working. As I can always just use JS to C# interop to do processing with C# libraries in the effective back end in which I case I could go with Photino but then I wouldn't be able to use my Hamburger icon in the MetroWindow Title Bar so I will stick with it. Decisions. Decisions..
This is the definitive answer to use of WebView2: menus, context menus, or else JavaScript menus and dialogs for everything. Although I am pretty sure regular Windows popup dialogs or custom ones in their own windows will work but again you will have to style them and I am beginning to think that styling in JS and CSS will be one hell of a lot easier!
From the Ticket AirHack looks to be the only other option but requires re-inheriting all of your controls = nope!
I have a WPF grid docked next to a RichTextBox hosted inside a WindowsFormsHost. The grid has a shadow that overlays the WindowsFormsHost, however, it's not showing over the WindowsFormsHost.
Is this a generic issue with hosting Windows Forms controls or is there a workaround?
Thanks in advance.
<WindowsFormsHost x:Name="WinFormsHost" Focusable="True" Background="White"/>
<Grid Background="White">
<Grid.Effect>
<DropShadowEffect Direction="90" Color="#FFC3C3C3" BlurRadius="15" Opacity="0.2"/>
</Grid.Effect>
</Grid>
WindowsFormsHost operates at the highest z-index and cannot be overridden. It's an old issue called the "airspace problem". Unfortunately there is no workaround.
I am using Gridsplitter control to give the flexibility of resizing the heights of a grid and a tab in a MVVM driven WPF application.
It is working with out any problem, but after I resize the height of any of the controls I navigate to some other screen and comes back to this screen I am losing the changes. The controls are again reset to their default heights.
Can somebody suggest me an efficient way of restoring the changes when we come back ?
This is the code I am using.
<igDP:XamDataGrid Grid.Row="1" Grid.Column="0" DockPanel.Dock="Top" />
<GridSplitter Grid.Row="2" HorizontalAlignment="Stretch"
VerticalAlignment="Center" Height="2"/>
<TabControl Grid.Row="3" Grid.Column="0" DockPanel.Dock="Top">
Thanks in advance.
First it would be nice to see actual code you can do that by pasting some code in your question and the use cyrly brackets under the yellow banner when you start typing ;-).
Secondly It seems like you could use binding with your ViewModel i.e. VM.UserSettings.TabHeight.
and then in .xaml
this is assuming
<Page or Window.DataContext>
<vm:ViewModel />
</Page or Window.DataContext>
<TabControl Height={Binding UserSettings.TabHeight}">
good luck :-)
I am about to start developing an application in windows phone 7. But I have a doubt in some points.
This is the GUI format of the application. The application have many pages.
In first section there are 3 buttons and no change for their design in entire application. In iPhone I used the UINavigationBar control. But is there any control in windows phone like UINavigationBar in iPhone ?
In second section the content is always changing.
In third section there are some buttons. But the buttons functionality is different in different pages. And also need to remove or add extra buttons in some pages. In iPhone I used UITabBar control.
Which way I can start the app development efficiently ?. Can anyone please suggest controls or idea I can use here in windows phone for this purpose ?
Thanks.
It seems you're trying to build a Windows PHone app the way you would an iPhone app. This typically leads to a very poor experience on Windows Phone and leads to users becoing frustrated as the app doesn't behave in the same way as other apps on the platform (and therefore the way they expect your app to behave).
I'd recommend starting by looking at some Design Resources for Windows Phone before designing your app so you can build something appropriate to the platform.
A couple of pointers:
- In general, floating buttons on [the top of] a page look bad. This is not the way apps on the platform perform navigation (unlike iOS). Windows Phone apps should use a "hub and spoke" model for page navigation.
- Having contents cahnge within a page is likely to lead to some confusion about the expected behaviour of the back button. Be very careful about this as inconsistent, unpredictable or non-standard back button behaviour can cause an application to fail certification.
If you don't want to create an application where the user can navigate from page to page (and use the back button to go back) you can create an application based on a single page. Here is a somewhat modified version of what Visual Studio creates for you if you create a Windows Phone Application project.
<phone:PhoneApplicationPage
x:Class="PhoneApp1.MainPage"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:phone="clr-namespace:Microsoft.Phone.Controls;assembly=Microsoft.Phone"
xmlns:shell="clr-namespace:Microsoft.Phone.Shell;assembly=Microsoft.Phone"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
mc:Ignorable="d" d:DesignWidth="480" d:DesignHeight="728"
FontFamily="{StaticResource PhoneFontFamilyNormal}"
FontSize="{StaticResource PhoneFontSizeNormal}"
Foreground="{StaticResource PhoneForegroundBrush}">
<Grid Background="Transparent">
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition/>
</Grid.RowDefinitions>
<StackPanel Margin="12,17,0,28">
<TextBlock
Text="MY APPLICATION"
Style="{StaticResource PhoneTextNormalStyle}"/>
<TextBlock
Text="page name"
Margin="9,-7,0,0"
Style="{StaticResource PhoneTextTitle1Style}"/>
</StackPanel>
<Grid Grid.Row="1" Margin="12,0,12,0">
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition/>
</Grid.RowDefinitions>
<!-- The three buttons -->
<StackPanel Orientation="Horizontal">
<Button Content="Button 1"/>
<Button Content="Button 2"/>
<Button Content="Button 3"/>
</StackPanel>
<!-- The main content -->
<TextBlock Grid.Row="1"
Text="Content always changing"
Style="{StaticResource PhoneTextTitle1Style}"
TextWrapping="Wrap"
TextAlignment="Center"/>
</Grid>
</Grid>
<phone:PhoneApplicationPage.ApplicationBar>
<shell:ApplicationBar IsVisible="True" IsMenuEnabled="True">
<shell:ApplicationBarIconButton
IconUri="/Images/appbar_button1.png"
Text="Button 1"/>
<shell:ApplicationBarIconButton
IconUri="/Images/appbar_button2.png"
Text="Button 2"/>
<shell:ApplicationBar.MenuItems>
<shell:ApplicationBarMenuItem Text="MenuItem 1"/>
<shell:ApplicationBarMenuItem Text="MenuItem 2"/>
</shell:ApplicationBar.MenuItems>
</shell:ApplicationBar>
</phone:PhoneApplicationPage.ApplicationBar>
</phone:PhoneApplicationPage>
And here is how it looks in the designer:
In this case the main content (that is always changing) is a <TextBlock> but you can use a panel composed of other controls or a UserControl. If you put multiple panels/controls in the same grid cell you can completely change the layout by hiding all but one panel/control.
For the top row of buttons I have used a horizontal <StackPanel> but you may want to use something else for better control of the layout and alignment.
For the bottom row of buttons you should use the appbar which is part of the standard Windows Phone 7 user experience.
How abt a Pivot? It might suit your needs. Techinically pivot is used to show the same data in different ways.
MSDN
How can I create the effect similar to Windows Phone's MessageBox, where the message gets displayed on a new layer with transparent background, so that the windows becomes modal? My layout is created out of Grid, so I do not know how to add any content over it. Please help.
It's easy to overlay one set of content with another in WPF. Try changing the visibility of the border below, for a simple message box effect. You would of course bind Visibility to your view model, or set it in code behind.
<Grid>
<Grid>
<!-- All your layout here -->
</Grid>
<Border Height="100" Width="100" Background="Azure" Visibility="Hidden">
<TextBlock Text="Hi there" HorizontalAlignment="Center" VerticalAlignment="Center"/>
</Border>
</Grid>