I followed the instructions from this article from official UWP team using VS2017 on my Windows 10 version 1809. But the following XAML is not showing menu bar. I've tested it on top of the app window and then even in the middle of the window but to no avail. I've also installed Windows UI Library following this article. What could be a reason and how to resolve the issue?
<Page
x:Class="Junk_UWP.MainPage"
xmlns:controls="using:Microsoft.UI.Xaml.Controls"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="using:Junk_UWP"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
mc:Ignorable="d"
Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
<Grid>
<MenuBar Margin="0,338,0,622" HorizontalAlignment="Stretch" VerticalAlignment="Stretch">
<MenuBarItem Title="File">
<MenuFlyoutSubItem Text="New">
<MenuFlyoutItem Text="Plain Text Document"/>
<MenuFlyoutItem Text="Rich Text Document"/>
<MenuFlyoutItem Text="Other Formats..."/>
</MenuFlyoutSubItem>
<MenuFlyoutItem Text="Open..."/>
<MenuFlyoutItem Text="Save"/>
<MenuFlyoutSeparator/>
<MenuFlyoutItem Text="Exit"/>
</MenuBarItem>
<MenuBarItem Title="Edit">
<MenuFlyoutItem Text="Undo"/>
<MenuFlyoutItem Text="Cut"/>
<MenuFlyoutItem Text="Copy"/>
<MenuFlyoutItem Text="Paste"/>
</MenuBarItem>
<MenuBarItem Title="Help">
<MenuFlyoutItem Text="About"/>
</MenuBarItem>
</MenuBar>
<Button Content="Button" HorizontalAlignment="Left" Margin="750,466,0,0" VerticalAlignment="Top" Click="Button_Click"/>
</Grid>
</Page>
Snapshot of Design Page of above Xaml:
The reason seems to be your huge vertical margins for the MenuBar. You need quite a big window and screen to display those margins. Also it doesn't make sense to use VerticalAlignment="Stretch", though I am not sure if it can break something.
Related
I made a simple app that does nothing. It inly displays a NavigationView with two items and a TextBlock as its content. This is the code:
<Page
x:Class="test.MainPage"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="using:test"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
mc:Ignorable="d"
Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
<Grid>
<NavigationView>
<NavigationView.MenuItems>
<NavigationViewItem Content="First Item" />
<NavigationViewItem Content="Second Item" />
</NavigationView.MenuItems>
<TextBlock Style="{StaticResource HeaderTextBlockStyle}" Text="Welcome to my Page"/>
</NavigationView>
</Grid>
</Page>
My app looks like this:
Why is there extra space at the top of the TextBlock? And how to remove that space? I know it is possible because the News app uses NavigationView and there is no vertical margin. Here is its screenshot:
You need to set the AlwaysShowHeader property to False:
<NavigationView AlwaysShowHeader="False">
This is called out in the docs here, though the new preview version seems to change this behavior currently and not show any header by default.
This question shows how to substitute PivotItem headers text with images, but I wish to have both (plus, the text should be a variable).
The goal is to replicate the following Navigation model:
(source: s-msft.com)
Is it possible to adapt this simple XAML to achieve both text and image? If not, how to do it?
<Page
x:Class="Lenny.Windows.Views.MainPage"
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:vm="using:Lenny.Windows.Views"
mc:Ignorable="d">
<Page.BottomAppBar>
<CommandBar>
<CommandBar.Content>
<Grid/>
</CommandBar.Content>
<AppBarButton Icon="Accept" Label="appbarbutton"/>
<AppBarButton Icon="Cancel" Label="appbarbutton"/>
</CommandBar>
</Page.BottomAppBar>
<Grid Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
<Pivot>
<Pivot.HeaderTemplate>
<DataTemplate>
<Image Source="{Binding}"></Image>
</DataTemplate>
</Pivot.HeaderTemplate>
<PivotItem Header="/Assets/LockScreenLogo.scale-200.png" >
<Grid />
</PivotItem>
<PivotItem Header="/Assets/LockScreenLogo.scale-200.png">
<Grid/>
</PivotItem>
<PivotItem Header="/Assets/LockScreenLogo.scale-200.png">
<Grid/>
</PivotItem>
</Pivot>
</Grid>
</Page>
If you are using MVVM you can use a property from your ViewModel and add a textblock in the header template to make a binding with this property and you can change this value from your ViewModel.
I said this because you need the text needs to be variable.
If you are not using MVVM pattern you need to use the Binding Approach
https://msdn.microsoft.com/en-us/library/windows/apps/mt269383.aspx
in xaml you need to add a stackpanel with orientation = horizontal and add your text and your image inside all of them in your header template
I want to customize my message dialog as shown in following figure
How do I perform that I have prepared xaml for this
<StackPanel Name="rootStackPanel" Height="Auto" Background="#363636" VerticalAlignment="Top">
<StackPanel Margin="10">
<StackPanel Margin="0,0,0,10" Orientation="Horizontal">
<TextBlock x:Name="HeadingText" x:FieldModifier="public" Style="{StaticResource ApplicationMessageBoxHeadingStyle}" Text="Alert" />
<Image Margin="10,05,0,0" Source="/Assets/Images/alert.png" Width="35"></Image>
</StackPanel>
<TextBlock x:FieldModifier="public" x:Name="ContentText" Style="{StaticResource ApplicationMessageBoxErrorStyle}" Text="Pease enter a valid plate number" />
<Button x:FieldModifier="public" Name="OkButton" Margin="0,20,0,0" Padding="0" HorizontalAlignment="Left" Content="Ok" Style="{StaticResource ApplicationThemeButtonStyle}"/>
</StackPanel>
</StackPanel>
The exact look you have there is non-standard, and if you want that exact thing you'll need to write some custom code. If the important part is the icon in the alert title then this is pretty easy with a ContentDialog.
The MessageDialog isn't customizable, but the ContentDialog is. There is a template to add a new ContentDialog to your project with the Add.New Item... menu.
Once you have your ContentDialog files you can customize the template to title its button "OK":
<ContentDialog
x:Class="MyApp.AlertDialog"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="using:MyApp"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
mc:Ignorable="d"
Title="Alert"
PrimaryButtonText="OK"
PrimaryButtonClick="ContentDialog_PrimaryButtonClick"
>
And include your alert.png along with the Title in the title template. A more advanced version would allow binding different icons for different purposes.You could also fill a path instead of drawing a png so the icon will scale more easily.
<ContentDialog.TitleTemplate>
<DataTemplate>
<StackPanel Orientation="Horizontal">
<TextBlock Text="{Binding}" Foreground="{ThemeResource PhoneAccentBrush}"/>
<Image Source="/Assets/Images/alert.png" />
</StackPanel>
</DataTemplate>
</ContentDialog.TitleTemplate>
And then include the rest of the contents in the ContentDialog's Xaml:
<StackPanel>
<TextBlock x:FieldModifier="public" x:Name="ContentText" Style="{StaticResource ApplicationMessageBoxErrorStyle}" Text="Pease enter a valid plate number" />
</StackPanel>
This will put the OK button in its standardized location at the bottom right. If you want to include it with the text you can stick it in your StackPanel like in your sample code and not set the PrimaryButtonText on the ContentDialog.
Create a Usercontrol in the project.
Put the entire xaml code in the Usercontrol.
Now you can use this Usercontrol as a popup wherever you want to use it.
Popup msgpopup = new Popup( );
msgpopup.child = new CustomisedMessageDialogControl(); //name of ur Usercontrol
And to open this Dialog simply,
msgpopup.IsOpen = true;
I would like to show a ContentDialog on first launch of my app, to show the EULA to the end user.
It seems that if an AppBar is defined in the calling page the two buttons in the dialog are not visible, an empty area with the same size of the command bar area defined in the calling page, is shown instead.
This is the markup on the ContentDialog:
<ContentDialog
x:Class="MyApp.EulaPage"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="using:MyApp.Pages"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
mc:Ignorable="d"
Title="TERMS OF USE"
PrimaryButtonText="i agree"
SecondaryButtonText="cancel"
PrimaryButtonClick="OnAgreeButtonClick"
SecondaryButtonClick="OnCancelButtonClick">
<Grid x:Name="ContentPanel" Margin="0,0,0,0" >
<Grid.RowDefinitions>
<RowDefinition Height="524" />
</Grid.RowDefinitions>
<ScrollViewer Grid.Row="0" Margin="0,0,0,2" >
<RichTextBlock IsTextSelectionEnabled="False" TextAlignment="Left" TextIndent="0" FontSize="14" FontFamily="Segoe WP" >
</RichTextBlock>
</ScrollViewer>
</Grid>
The GridRowDefinition has a fixed hight, because the text in the RichTextBlock needs to be scrolled.
I have prepared a sample project that can be found here. The zip file contains also a screenshot showing how I see the dialog.
I had the same problem and I have solved it by modifying/removing Height/Width and Margins of the Contentdialog
My environment is: Visual Studio 2013 on Windows 8.1 using C++/CX and XAML.
I have a very simple MenuFlyout attached to a button that has a very odd behavior. You can click it once then selected a MenuFlyoutItem, however if you click it a second time it inverts all the colors on the page (such as the background turns white, which was black).
<Button HorizontalAlignment="Left" Margin="10,0,0,0" VerticalAlignment="Top" Height="55" Width="434" FontSize="25">
<TextBlock HorizontalAlignment="Center" VerticalAlignment="Center" Text="{Binding DataContext.EmployeeList[0].PayFrequency, Mode=TwoWay}" Foreground="White"/>
<Button.Flyout>
<MenuFlyout Placement="Top">
<MenuFlyoutItem x:Name="WeeklyOption" Text="Weekly" Click="WeeklyOption_Click"/>
<MenuFlyoutItem x:Name="BiWeeklyOption" Text="Bi-Weekly" Click="BiWeeklyOption_Click"/>
<MenuFlyoutItem x:Name="MonthlyOption" Text="Monthly" Click="MonthlyOption_Click"/>
<MenuFlyoutItem x:Name="BiMonthlyOption" Text="Bi-Monthly" Click="BiMonthlyOption_Click"/>
</MenuFlyout>
</Button.Flyout>
</Button>
as far as I can tell I'm not messing with any Styles or any colors anywhere.