I get exception when declare resources in this order:
<Window.Resources>
<sys:Object x:Key="resourceA"></sys:Object>
<x:Array x:Key="resourceB" Type="sys:String">
<sys:String>foo</sys:String>
</x:Array>
</Window.Resources>
and when declare this way, all works:
<Window.Resources>
<x:Array x:Key="resourceB" Type="sys:String">
<sys:String>foo</sys:String>
</x:Array>
<sys:Object x:Key="resourceA"></sys:Object>
</Window.Resources>
The Exception thrown is:
Cannot convert the value in attribute
'ItemsSource' to object of type
'System.Collections.IEnumerable'.
'System.Windows.Markup.ArrayExtension'
is not a valid value for property
'ItemsSource'. Error at object
'System.Windows.Controls.ComboBox' in
markup file
'WpfResourcesBug;component/window1.xaml'
Line 18 Position 37.
Full code:
<Window x:Class="WpfResourcesBug.Window1"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:sys="clr-namespace:System;assembly=mscorlib"
Title="Window1" Height="300" Width="300">
<Window.Resources>
<sys:Object x:Key="resourceA"></sys:Object>
<x:Array x:Key="resourceB" Type="sys:String">
<sys:String>foo</sys:String>
</x:Array>
</Window.Resources>
<StackPanel>
<ComboBox SelectedIndex="0" ItemsSource="{StaticResource resourceB}" />
</StackPanel>
</Window>
I think you might find a possible solution here
Related
I intend to set a state of CalibrationGridControl from a button.
To do that, the CalibrationGridControl UserControl must have a x:Name (Blend even adds one for me when I setup the the GoToState behavior.
Problem is, as soon as I add x:Name="calibrationGridControl" I get the following compile error.
Error CS0426 The type name 'ViewModel' does not exist in the type 'TeachpendantControl' TeachPendantControl C:\GitRepos\SolutionName\TheWPFControl\Views\HandeyeCalibration\HandeyeCalibrationView.xaml 150 38 Build Active Compiler
The UserControl HandeyeCalibrationView below is a View to be shown inside a ContentControl in the "TheWPFControl". TheWPFControl and the HandyeCalibration.xaml are both in the same project (a WPF Control library). Below is the essential part of the HandeyeCalibration.xaml file where I get the error.
<UserControl
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:vm="clr-namespace:TeachpendantControl.ViewModel"
xmlns:local="clr-namespace:TeachpendantControl.Views"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:b="clr-namespace:Wpf.Behaviours"
xmlns:HandeyeCalibration="clr-namespace:TeachpendantControl.ViewModel.H"
xmlns:i="http://schemas.microsoft.com/expression/2010/interactivity"
xmlns:ei="http://schemas.microsoft.com/expression/2010/interactions"
x:Class="TeachpendantControl.Views.HandeyeCalibrationView"
mc:Ignorable="d"
d:DataContext ="{d:DesignInstance {x:Type vm:HandeyeCalibrationViewModel},
IsDesignTimeCreatable=True}"
Height="111.221"
Width="276.813"
>
<UserControl.Resources>
<ResourceDictionary>
<ResourceDictionary.MergedDictionaries>
<ResourceDictionary Source="../../ResourceDictionary.xaml"/>
</ResourceDictionary.MergedDictionaries>
</ResourceDictionary>
</UserControl.Resources>
<UserControl.DataContext>
<Binding Mode="OneWay"
Path="HandeyeCalibrationViewModel"
Source="{StaticResource Locator2}"/>
</UserControl.DataContext>
<Grid>
<UserControl>
...
<HandeyeCalibration:CalibrationGridControl
x:Name="calibrationGridControl"
HorizontalAlignment="Left"
Margin="0"
VerticalAlignment="Top"
Height="106"
Width="106"
Background="#FF747474"/>
<Button Command="{Binding AddCommand}"
Content="{Binding AddText, UpdateSourceTrigger=PropertyChanged}"
Margin="0,0,5,0">
<i:Interaction.Triggers>
<i:EventTrigger EventName="Click">
<ei:GoToStateAction TargetName="calibrationGridControl"
StateName="{Binding NextPositionState, Mode=OneWay}"/>
</i:EventTrigger>
</i:Interaction.Triggers>
</Button>
</Grid>
</UserControl>
If I only remove the x:Name="calibrationGridControl" line everything compiles just fine. What could be wrong, causing this strange error message?
I got some questions about the CalibrationGridControl. If I just remove the x:Name when adding it to another user control everything compiles. The XAML for the CalibrationGridControl looks like this.
<UserControl x:Class="TeachpendantControl.ViewModel.H.CalibrationGridControl"
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:local="clr-namespace:TeachpendantControl.ViewModel"
xmlns:i="http://schemas.microsoft.com/expression/2010/interactivity;assembly=System.Windows.Interactivity"
xmlns:ei="http://schemas.microsoft.com/expression/2010/interactions"
mc:Ignorable="d"
d:DesignHeight="300" d:DesignWidth="300">
<UserControl.Resources>
<SolidColorBrush x:Key="CalibrationGridCrossBrush" Color="#FFFFDF00"/>
<SolidColorBrush x:Key="CalibrationGridPositionTrainedFillBrush" Color="#FFFFDF00"/>
<SolidColorBrush x:Key="CalibrationGridPositionFillBrush" Color="Black"/>
</UserControl.Resources>
<Grid>
...
</Grid>
</UserControl>
TeachpendantControl apparently is both a type and a namespace.
You should either change the name of the control or the change the name of the namespace to avoid a naming collision.
I can set vlc options in an app by adding the following to the application.xaml
<Application x:Class="Application"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="clr-namespace:ADSNet35"
StartupUri="Start.xaml"
xmlns:sys="clr-namespace:System;assembly=mscorlib">
<Application.Resources>
<x:Array Type="{x:Type sys:String}" x:Key="VlcOptions">
<sys:String>-I</sys:String>
<sys:String>--dummy-quiet</sys:String>
<sys:String>--ignore-config</sys:String>
<sys:String>--no-video-title</sys:String>
<sys:String>--no-sub-autodetect-file</sys:String>
</x:Array>
</Application.Resources>
</Application>
and in the xaml
<wpf:VlcPlayer xmlns:wpf="clr-namespace:Meta.Vlc.Wpf;assembly=Meta.Vlc.Wpf" x:Name="VlcPlayer1" VlcOption="{StaticResource VlcOptions}" />
and everything works great.
I have created a class library usercontrol and have used the following
UserControl x:Class="ucContainer"
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:sys="clr-namespace:System;assembly=mscorlib"
mc:Ignorable="d" d:DesignHeight="300" d:DesignWidth="300">
<UserControl.Resources>
<ResourceDictionary>
<x:Array x:Key="VlcOptions" Type="{x:Type sys:String}">
<sys:String>-I</sys:String>
<sys:String>--dummy-quiet</sys:String>
<sys:String>--ignore-config</sys:String>
<sys:String>--no-video-title</sys:String>
<sys:String>--no-sub-autodetect-file</sys:String>
</x:Array>
</ResourceDictionary>
</UserControl.Resources>
<Grid>
<wpf:VlcPlayer xmlns:wpf="clr-namespace:Meta.Vlc.Wpf;assembly=Meta.Vlc.Wpf" x:Name="VlcPlayer1" VlcOption="{StaticResource VlcOptions}" />
</Grid>
When the usercontrol is created I get the following error:
System.Windows.Markup.XamlParseException: 'Cannot convert the value in attribute 'VlcOption' to object of type 'System.String[]'. 'System.Windows.Markup.ArrayExtension' is not a valid value for property 'VlcOption'.
This is my first class library / usercontrol and hope someone can explain what I'm doing wrong.
I took out the <ResourceDictionary> tag and it worked fine.
Into MainWindow.xaml I have:
<Window x:Class="LayoutMVVM.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"
mc:Ignorable="d"
ResizeMode="NoResize"
xmlns:local="clr-namespace:LayoutMVVM"
xmlns:veiwmodels="clr-namespace:LayoutMVVM.ViewModels"
xmlns:views="clr-namespace:LayoutMVVM.Views"
Title="Layout" Height="750" Width="650">
Into Windows.Resources I'm binding dataContext:
<Window.Resources>
<DataTemplate x:Name="SettingsTemp" DataType="{x:Type veiwmodels:SettingsModel}">
<views:SettingsView DataContext="{Binding}" />
</DataTemplate>
</Window.Resources>
But when my other model and view is located into sub-folder as below:
I can't do:
<DataTemplate x:Name="OpenTemp" DataType="{x:Type ViewModels:Open.OpenModel}">
<views:Open.OpenView DataContext="{Binding}" />
</DataTemplate>
or LayoutMVVM.ViewModels.Open.OpenModel
or LayoutMVVM/ViewModels/Open/OpenModel
You should add new one in header of control:
xmlns:veiwmodelsOpen="clr-namespace:LayoutMVVM.ViewModels.Open
or you can set namespace of OpenModel to LayoutMVVM.ViewModels (not LayoutMVVM.ViewModels.Open).
There is no other way, I think.
I am using the following arrays as parameters to my value converter. I can't figure why "params2" is passed as an ArrayExtension and "params1" is passed as a simple TextBlock[] array.
<Window.Resources>
<x:Array Type="TextBlock" x:Key="params1">
<TextBlock Text="{x:Static local:Constants.MyDir}"></TextBlock>
<TextBlock>25</TextBlock>
</x:Array>
</Window.Resources>
<TabItem.Resources>
<x:Array Type="TextBlock" x:Key="params2">
<TextBlock Text="{x:Static local:Constants.MyDir}"></TextBlock>
<TextBlock>55</TextBlock>
</x:Array>
</TabItem.Resources>
Image Viewer XAML:
<Window x:Class="TotalViewer.ImageViewerWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="clr-namespace:TotalViewer"
Title="ImageViewerWindow" Name="ImageViewerWindow1">
<Window.Resources>
<x:Array Type="TextBlock" x:Key="params1">
<TextBlock Text="{x:Static local:Constants.MyDir}"></TextBlock>
<TextBlock>25</TextBlock>
</x:Array>
</Window.Resources>
<Grid>
<Image Source="{Binding ElementName=ImageViewerWindow1, Path=ImagePath,
Converter={StaticResource ImageConverter},
ConverterParameter={StaticResource params1}}"/>
</Grid>
</Window>
Well, I kinda gave up for the moment because I need to get this part working. In the converter, I test if the parameter is either ArrayExtension or TextBlock[]. If it's ArrayExtension, it will get converted to TextBlock[].
push
Hello everybody!
I'm using a WPF ComboBox with IsTextSearchEnabled="True" (Autocomplete) and want to bind its ItemsSource-Property to a CompositeCollection. Unfortunately, the Combobox doesn't seem to recognize the items provided by a CollectionContainer within the CompositeCollection. They are shown, but not selected by AutoComplete.
Please try the example, type in "def". If "def" doesn't get selected, you've reproduced the problem I'm facing. Is there any solution, something that I've overseen or a practical way to work around while having some mergedcollection-capability?
<Window x:Class="MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="MainWindow" Height="350" Width="525">
<Window.Resources>
<XmlDataProvider x:Key="XData1" XPath="/Info">
<x:XData>
<Info xmlns="">
<Item>def</Item>
<Item>efg</Item>
</Info>
</x:XData>
</XmlDataProvider>
<CollectionViewSource x:Key='Data1' Source="{Binding Source={StaticResource XData1}, XPath=Item}" />
</Window.Resources>
<Grid>
<ComboBox IsEditable="True" IsTextSearchEnabled="True" Margin="0,0,0,283">
<ComboBox.ItemsSource>
<CompositeCollection>
<ComboBoxItem>abc</ComboBoxItem>
<ComboBoxItem>bcd</ComboBoxItem>
<ComboBoxItem>cde</ComboBoxItem>
<CollectionContainer Collection="{Binding Source={StaticResource Data1}}" />
</CompositeCollection>
</ComboBox.ItemsSource>
</ComboBox>
</Grid>
Thanks!
- dartrax
I've found out that this is solved as soon as you override the ToString()-Function of your Items-object, so that it returns what the items DataTemplate shows.
A complete working example is here:
--------> X
dartrax