I've got a xaml with a german umlaut (s. below) now when I try to parse it, I get an invalidchar error.
When I don't use an XamlParser Context it works. But I have to use it in order to set some type mappings
XAML:
<UserControl xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:test="clr-namespace:BR.UI.Tests.Items;assembly=BR.UI.ViewLocator.Tests"
mc:Ignorable="d" d:DesignHeight="300" d:DesignWidth="300">
<UserControl.DataContext>
<test:SampleViewModel />
</UserControl.DataContext>
<Grid>
<Label>รถ</Label>
</Grid>
</UserControl>
Code which parses it
var context = new ParserContext();
var result = System.Windows.Markup.XamlReader.Parse(xaml,context);
I can't find anything to set an encoding hint (which would be .net String UTF-16) what am I doing wrong?
I also tried to inject the encoding with an XmlParserContext.
var xmlcontext = new XmlParserContext(null, null, null, XmlSpace.Preserve,
Encoding.Unicode);
var context = new ParserContext(xmlcontext);
But it didn't help :-(
What do I need to do? Is there some kind of XAML encoding?
Answering my own question hope that is ok.
What helped for me was using the
System.Windows.Markup.XamlReader.Load(stream,XamlParserContext)
Method.
s. http://msdn.microsoft.com/de-de/library/ms590388.aspx
This method seems to respect the encoding of the string variable.
I still don't understand why this doesn't work with the Static ParseMethod. But I hope this solution will help someone else to safe time :-)
Related
I'm working on a project that uses Prism for its client software. I have a UserControl XAML file that looks something like this:
<UserControl x:Class="UserModule.Frontend.UserListView"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:prism="http://prismlibrary.com/"
prism:ViewModelLocator.AutoWireViewModel="True"
mc:Ignorable="d"
d:DesignHeight="450" d:DesignWidth="800">
<Grid>
<ListView ItemsSource="{Binding Users}"/>
</Grid>
</UserControl>
The actual XAML is a bit longer, but my question is:
Rider shows me a warning at the binding of the list view's ItemsSource property. I have a ViewModel that Prism injects correctly and I can see that the list has been populated. However, at design time, I can't see if the property exists, if I don't check for myself. At the same time, I get a warning in the ViewModel class, that the public getter of Users could be removed.
Is there a way to get code completion to recognize the autowired ViewModel with Prism?
You need to define the d:DataContext for your view. And while you're at it, vote for the feature...
I have been working on a project (C# WPF .NET Framework) for a while now and have got a problem and I
have already tried multiple things to try fix the issue when I build it is successful however
when I try to start/run the wpf it shows in Break Mode:
Cannot locate resource 'mainwindow.xaml
(Full: System.IO.IOException: 'Cannot locate resource 'mainwindow.xaml'.')
For my wpf I renamed everything to MainScreen:
<Window x:Class="***************.MainScreen"
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:***************"
mc:Ignorable="d"
Title="MainScreen" Height="450" Width="800"
AllowsTransparency="True" Background="Transparent"
WindowStyle="None" ResizeMode="NoResize" FontSize="20"
>
If any of you need more information please add a comment with what you need.
Also I did the *'s because this project and name will be used officially, sorry and I hope you can understand.
In App.xaml, make sure StartupUri="MainScreen.xaml" is set up correctly.
I have this xaml
<mui:ModernWindow x:Uid="mui:ModernWindow_1" x:Class="App1.HomePage"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:mui="http://firstfloorsoftware.com/ModernUI"
xmlns:sys="clr-namespace:System;assembly=mscorlib"
ContentSource="/Window1.xaml"
Title="MainWindow" Height="350" Width="525" WindowState="Maximized" MenuLinkGroups="{Binding menuLinkGroups}">
<mui:ModernWindow.Resources>
<sys:String x:Key="ApplicationName">Bla Bla</sys:String>
</mui:ModernWindow.Resources>
<Grid Style="{StaticResource ContentRoot}" Name="mainGrid">
</Grid>
</mui:ModernWindow>
I need to reference current window resources, so I used this:
object obj = this.Resources["ApplicationName"];
But this.Resources doesn't have any resource! so obj is always null. How could I reference this window resources?
Assume that this is a FrameworkElement, like a Window, a Grid, a Button or something like that.
object obj = this.TryFindResource("ApplicationName");
Assuming this is a control...
var parent = Window.GetWindow(this)
Will get the window the control is currently on, you should then be able to access the resources like you already did
parent.Resources["ApplicationName"];
you can use below mentioned code
var MainGrid=Application.Current.FindResource("strApp")
or
this.FindResource("ApplicationName")
Thanks all, I find the solution (I forget to update the localized dll).
I cleaned and rebuilt solution, used locbaml.exe again to generate new localized dll.
You should bind in the XAML and not in the code behind.
"res" is the namespace where the resources file is located.
In your example the namespace alias is "local":
xmlns:local="clr-namespace:Project.Resources"
So your code should look like:
<Page Title ="{x:Static local:localStrings.step1Description}" />
Where:
"local" is the namespace alias where the resources file is located.
"localStrings" is the name of the resource file.
"step1Description" is an entry in the resource file.
I want to make a converter class , I implemented it and i want to use it in another xaml class
So i write this code
<UserControl
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="using:PoliceApp"
xmlns:common="using:PoliceApp.Common"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
mc:Ignorable="d">
<UserControl.Resources>
<local:TitleToImgConverter x:Key="BoolOrConverter"/>
</UserControl.Resources>
</UserControl>
It tells me that there is a missing attribute for user control
and my first code was
DataContext="{Binding DefaultViewModel, RelativeSource={RelativeSource Self}}"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="using:PoliceApp"
xmlns:common="using:PoliceApp.Common"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
mc:Ignorable="d">
<UserControl.Resources>
<local:TitleToImgConverter x:Key="BoolOrConverter"/>
</UserControl.Resources>
And the error was "The name titletoimgconverter doesnt exist in the namespace using:policeApp"
This is normal (at least, I have never seen it otherwise) when you have just created a new converter and added it as a resource in your XAML code. XAML code often lags behind when something is added to the namespace.
The solution for this is to rebuild your entire project. The XAML should now be able to locate your converter, and the error should disappear.
Update
If your converter exists in some folder called Converter, you should use your first example, and replace xmlns:local="using:PoliceApp" with xmlns:local="clr-namespace:PoliceApp.Converter". If it just resides in your main folder, you can leave out the .Converter. Note that I've replaced the using: with clr-namespace:.
I want to define my custom decorator that has user content in it. But it always fail when I try to set some control's name. I always get this exception when trying to do it:
Cannot set Name attribute value 'butt' on element 'Button'. 'Button'
is under the scope of element 'UserControl1', which already had a name
registered when it was defined in another scope.
I don't understand why that happens. Here's teh codez:
<UserControl x:Class="WpfApplication5.UserControl1"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
mc:Ignorable="d" d:DesignHeight="300" d:DesignWidth="300"
x:Name="control">
<ContentPresenter Content="{Binding ElementName=control, Path=DataContext}" />
</UserControl>
<Window x:Class="WpfApplication5.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="clr-namespace:WpfApplication5"
Title="MainWindow" Height="350" Width="525">
<local:UserControl1>
<local:UserControl1.DataContext>
<Button x:Name="butt" />
</local:UserControl1.DataContext>
</local:UserControl1>
</Window>
How to do that properly?
You cannot name elements inside UserControls, someone considered this to be a bug but i do not know if this is the case, either way, this will not work. You could declare the Button as a resource of your Window and then insert it via StaticResource, then however the name will not be registered as a field in the window class.
Either way, do you really need the name?
Edit: Also see this question.