Changing the background color of a metro style app has no effect
I am trying to change the background color of my application in visual studio (XAML) to White (or, ApplicationPageBackgroundTheme / or whatever it's called) and it doesn't work. When I debug, it just shows a black background.
When I go to the Devices pane and select the default color theme to "Light", it makes everything on the screen white, even the text and the background.
When I change the background of the colors in xaml, at runtime it gets changed back to black!
I've searched, but haven't found any information. Is this a known bug? This has never happened before. I am using Visual Studio 2012 Ultimate.
<Page
x:Class="hjgjhgjg.MainPage"
IsTabStop="false"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="using:hjgjhgjh"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
mc:Ignorable="d" Background="White">
<Grid Style="{StaticResource LayoutRootStyle}" Background="White">
<Grid.RowDefinitions>
<RowDefinition Height="140" />
<RowDefinition Height="*" />
</Grid.RowDefinitions>
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto" />
<ColumnDefinition Width="*" />
</Grid.ColumnDefinitions>
<Button x:Name="backButton" Click="GoBack" IsEnabled="False" Style="{StaticResource BackButtonStyle}" />
<TextBlock x:Name="pageTitle" Grid.Column="1" Text="gfdgfdg" Style="{StaticResource PageHeaderTextStyle}" />
</Grid>
</Grid>
</Page>
Hard to know exactly what's going on without more of the app/styles, but an easy way to change theme is to use the Application object's RequestedTheme property.
For example, in App.xaml, set RequestedTheme="Light" as a property of the Application element:
<Application
x:Class="App1.App"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="using:App1"
RequestedTheme="Light">
This can be helpful because the Light theme will then affect all pages and automatically changes text/buttons/etc. to black instead of everything being white if you only make the background color white.
This walkthrough covers this and how to override default styles with your own custom ones:
BTW, the Device pane doesn't change app settings, but simulates in design view how the app would appear with various device features/settings (screen, theme, etc.) So while it may look like one theme in the designer, it's going to revert to whatever the system/XAML/code results in when you actually run it.
If I remember correctly, you can check in the manifest in the first tab. There should be an option for ya there.
页面的背景颜色将不可见，因为根网格是不透明的，默认情况下它的颜色设置为黑色，您可以将网格的颜色设置为透明颜色，或者将白色应用于网格，因为我看到你已经将颜色应用于网格，我建议你退出网格的样式属性，看看是否有帮助。
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