XLS0502 error The type 'Button' does not support direct content
system.xaml and UIAutomationProvider have been added
the project was cleaned up and then rebuilt. But the problem has not disappeared.What should I do now?
Try to use Grid inside the Button.Content element.
<Button>
<Button.Content>
<Grid>
</Grid>
</Button.Content>
</Button>
Resources:
Content properties
Related
I am new to MAUI. And I haven't done anything complex with Xamarin as well.
The application I am testing with, has Shell navigation. And I can't find a way to change the toolbar items.
I would like to be able to change either the FontSize of the text, or the color of the SVG image. And I do not want those changes to affect the rest of my application, if possible. But if there is no other way, I can live with it.
I have managed to add styling to buttons, Labels etc... If styling is an option to this, it will be even better.
If I am on the wrong path, if you point me out why, I will be also grateful.
Thank you in advance!
If you want to just change a part of pages in your project. You can try to use a <Shell.TitleView> instead of the <Shell.ToolBarItem> in the content pages you want. Such as:
<ContentPage xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
x:Class="MauiAppTest.MainPage">
<Shell.TitleView>
<HorizontalStackLayout Margin="5" HorizontalOptions="End">
<Label Text="hello" TextColor="Red" FontSize="Medium" VerticalOptions="Center" HorizontalOptions="End" />
<Image Source="your image" Margin="10" Background="green"/>
</HorizontalStackLayout>
</Shell.TitleView>
You can change style of TabBar in Style.xaml in path \Resources\Style\. Search in file for Shell.TabBarForegroundColor. You will get TargetType="Shell" and this is style for AppShell.xaml.
I have a
<CarouselView ItemsSource="{x:Static vm:MainPageViewModel.MyItems}">
<CarouselView.ItemTemplate>
<DataTemplate>
<StackLayout>
<Label Text="{Binding ID}"/>
<Label Text="{Binding Progress}"/>
...
I would like the <Label Text="{Binding Progress}"/> not to scroll off screen, but to stay fixed (at the top) and update as the user swipes through the CarouselView items. If I move the label outside of the CarouselView, it won't be data bound.
How can I keep the label fixed onscreen, but bound to the curren CarouselView item? (Do I need to do this via code behind?)
You can achieve this easily by binding the text property of the Label to the property in your ViewModel which will also do binding to the CurrentItem property of CarouselView.
Can you try something like this:
<Label Text="{x:Static vm:MainPageViewModel.MyCurrentItem.Progress}"/>
<CarouselView CurrentItem="{x:Static vm:MainPageViewModel.MyCurrentItem}"
ItemsSource="{x:Static vm:MainPageViewModel.MyItems}"
... other code
>
... other code
</CarouselView>
and in your ViewModel create a new bindable property of the same type as your MyItems list items are.
I have updated my GitHub repo with the example of this kind of behaviour:
You can find GitHub repo here.
and particular view here.
And here is a GIF of a running demo:
Label is above the CarouselView, and when you swipe and change the selected item, the value of label is changing according to the change of CarouselView.
Hope this was helpful for you, wishing you lots of luck with coding!
I see that Frame works now much better.
We can have Tabview,that is a root of current view.
<TabView androidTabsPosition="bottom">
<TabViewItem title="First">
<Frame defaultPage="home/home-page" />
</TabViewItem>
<TabViewItem title="Second">
<Frame defaultPage="second/second-page" />
</TabViewItem>
</TabView>
This looks like home-page or second-page is “included”.
Now, i’m wondering if it’s possible to have app-root.xml that holds common elements, and needed page is included. I’ve tried this, but this is not working (why? This approach is possible only for tabview and sidedrawer ?)
app-root.xml
<Page>
<Frame defaultPage="create/create"></Frame>
</Page>
create/create.xml
<StackLayout class="footer white">
<Label text="test"></Label>
</StackLayout>
Instead of Page use layout like GridLayout Look at this test application as a reference and more specifically this page
However, the above approach would work for Android but for iOS, you should either remove the action bar for each Page (inside each Frame) or create multiple action bars (not recommended!).
I have an RadToolbar control on my Page. The problem is the Images I have placed on my buttons don't show. My code seems fine. Whats the issue?
<telerik:RadToolBar Grid.Row="1"
Margin="20,20,5,10">
<Button Width="25"
Click="OnInsertClick">
<Image Source="Images/add.png"/>
</Button>
<Button Width="25">
<Image Source="Images/delete.png"/>
</Button>
</telerik:RadToolBar>
I also tried addressing like /Images/add.png but to no avail
It depends on where your page is located in the project. If it's on the same level as Images folder, your code should work. But if it's in separate folder, you'll need to use dots to go up a level:
<Image Source="../Images/add.png"/>
If your page is located deeper in folder structure, you'll need to add dots for every level.
Alternatively, you can use full notation to avoid playing with dots (change the name for your assembly name from project properties):
<Image Source="/AssemblyName;component/Images/add.png"/>
FYI I'm pretty new to Silverlight.
Okay, so I want to build a simple user control that contains a button plus some additional XAML as specified by the client of the control.
I got searching on Google and found at least 30 different articles that were all very confusing; especially because they talk about styling animation, customizing other controls that you don't own, and other crap I'm not ready for yet.
This is what I did.
In VS 2010, I right clicked and added a new UserControl called MyControl
To the MyControl.xaml I changed the LayoutRoot to a StackPanel and added a Button inside it
In my MainPage.xaml I added an instance of MyControl
I added a TextBox as a child element of this instance
I tried to build and got an error that MyControl didn't support Direct Content
Googled some more..
I changed MyControl to inherit from ContentControl and updated the xaml
I added a ContentPresenter in the xaml to represent the client "custom content"
Okay, it builds and the TextBox shows up, but the Button is missing.
Here's the relevant section from MainPage.xaml
<my:MyControl HorizontalAlignment="Left" Margin="49,26,0,0" x:Name="myContentControl1" VerticalAlignment="Top" Height="550" Width="389">
<TextBox Height="72" HorizontalAlignment="Left" Margin="166,339,0,0" Name="textBox1" Text="TextBox" VerticalAlignment="Top" Width="460" />
</my:MyControl>
Here's the MyControl.xaml
<ContentControl x:Class="ContentControlTest.MyControl"
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"
mc:Ignorable="d"
FontFamily="{StaticResource PhoneFontFamilyNormal}"
FontSize="{StaticResource PhoneFontSizeNormal}"
Foreground="{StaticResource PhoneForegroundBrush}"
d:DesignHeight="480" d:DesignWidth="480">
<StackPanel x:Name="LayoutRoot" Background="{StaticResource PhoneChromeBrush}" Orientation="Vertical">
<ContentPresenter/>
<Button Content="Button" Height="72" HorizontalAlignment="Left" Margin="78,254,0,0" Name="FooFoo" VerticalAlignment="Bottom" Width="160" />
</StackPanel>
</ContentControl>
And here is the MyControl.cs
using System.Windows.Controls;
namespace ContentControlTest
{
public partial class MyControl : ContentControl
{
public MyControl()
{
InitializeComponent();
}
}
}
The way I thought it worked was that the child elements of the control instance are set as the Content property on the ContentControl base class of MyControl. Then, ContentPresenter "pastes" that content into the MyControl.xaml wherever appears.
Although that does seem to be how it works, in the process it is "eating" the Button that I have defined in the MyControl.xaml.
I'm trying not to get into ControlTemplate etc that at this point unless it is absolutely necessary.
Can someone with a clue please tell me what I am doing wrong.
thanks!
That's because the Content of the control is the entire StackPanel you've written by hand; when you set a new Content, the StackPanel is replaced.
A ControlTemplate is necessary for this scenario, I think; it would be a very simple one after all. The starting point can be the default style of the content control; put the style inside a ResourceDictionary (for instance, in the <ContentControl.Resources> section of your user control), and you're ready to go; all you need to do is add a grid and button inside that template.
Note that the style I linked to sets itself as the default for any reachable ContentControl; to make it only apply to your control and not to any children that may appear inside it, add x:Key="someKey" to the Style and set the ContentControl's Style property explicitly to Style={StaticResource someKey}.
Let me know if you need additional information; also, I might be wrong and there may be an easier way, but I doubt it; the Content property is meant to behave exactly like what you described.