在"System.Windows.StaticResourceExtension"上提供值 [英] Provide value on 'System.Windows.StaticResourceExtension'
本文介绍了在"System.Windows.StaticResourceExtension"上提供值的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
经过很长时间的winform处理之后，我再次执行WPF，并且在使用转换器时遇到了一些问题.
After a long time doing winform, I'm doing some WPF again and I'm having some issue using a converter.
我有一个UserControl，其中有一个DevExpress网格:
I've an UserControl, inside of it I've a DevExpress grid:
<UserControl x:Class="X.Y.Z.Views.LogMessagesView"
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:X.Y.Z.Views"
xmlns:mvvm="http://prismlibrary.com/"
xmlns:dxg="http://schemas.devexpress.com/winfx/2008/xaml/grid"
xmlns:dxb="http://schemas.devexpress.com/winfx/2008/xaml/bars"
xmlns:dxe="http://schemas.devexpress.com/winfx/2008/xaml/editors"
xmlns:devExpress="clr-namespace:X.Wpf.Converters.DevExpress;assembly=X.Wpf"
mc:Ignorable="d"
d:DesignHeight="300" d:DesignWidth="300" mvvm:ViewModelLocator.AutoWireViewModel="True">
<UserControl.Resources>
<devExpress:CollectionToCriteriaOperatorConverter x:Key="CollectionToCriteriaOperatorConverter"/>
</UserControl.Resources>
<dxg:GridControl SelectionMode="Row" ItemsSource="{Binding EventsList}" FilterCriteria="{Binding VisibleLevels, Converter={StaticResource CollectionToCriteriaOperatorConverter}, ConverterParameter='Level'}">
<dxg:GridControl.SortInfo>
<dxg:GridSortInfo FieldName="TimeStamp" SortOrder="Descending" />
</dxg:GridControl.SortInfo>
<dxg:GridControl.Columns>
<dxg:GridColumn FieldName="TimeStamp" Header="Local Computer Time">
<dxg:GridColumn.EditSettings>
<dxe:TextEditSettings DisplayFormat="G"/>
</dxg:GridColumn.EditSettings>
</dxg:GridColumn>
<dxg:GridColumn FieldName="Level" Header="Level" >
<dxg:GridColumn.DisplayTemplate>
<ControlTemplate>
<StackPanel Orientation="Horizontal" DataContext="{Binding EditValue, RelativeSource={RelativeSource TemplatedParent}}">
<!-- Convert severity to image -->
<TextBlock Text="{Binding Name}" />
</StackPanel>
</ControlTemplate>
</dxg:GridColumn.DisplayTemplate>
</dxg:GridColumn>
<dxg:GridColumn FieldName="RenderedMessage" Header="Message"/>
</dxg:GridControl.Columns>
<dxg:GridControl.View>
<dxg:TableView ShowFixedTotalSummary="True" AutoWidth="True" Name="view" AllowSorting="False" ShowIndicator="False" ShowGroupPanel="False" ShowAutoFilterRow="False" AllowColumnFiltering="False" AllowEditing="False" AllowFilterEditor="False" AllowGrouping="False" AllowMasterDetail="False">
<dxg:TableView.ColumnMenuCustomizations>
<dxb:RemoveBarItemAndLinkAction ItemName="BestFitColumns" />
</dxg:TableView.ColumnMenuCustomizations>
</dxg:TableView>
</dxg:GridControl.View>
</dxg:GridControl>
</UserControl>
我已经在资源中声明了我的 Converter ，并在绑定中使用了它.一切都可以编译，但是运行时出现异常:
I've declared my Converter in the resources, I use it in my binding. Everything compile, but I got an exception on Runtime:
System.Windows.Markup.XamlParseException occurred
HResult=-2146233087
LineNumber=38
LinePosition=130
Message='Provide value on 'System.Windows.StaticResourceExtension' threw an exception.' Line number '17' and line position '78'.
Source=PresentationFramework
StackTrace:
at System.Windows.Markup.WpfXamlLoader.Load(XamlReader xamlReader, IXamlObjectWriterFactory writerFactory, Boolean skipJournaledProperties, Object rootObject, XamlObjectWriterSettings settings, Uri baseUri)
at System.Windows.Markup.WpfXamlLoader.LoadBaml(XamlReader xamlReader, Boolean skipJournaledProperties, Object rootObject, XamlAccessLevel accessLevel, Uri baseUri)
at System.Windows.Markup.XamlReader.LoadBaml(Stream stream, ParserContext parserContext, Object parent, Boolean closeStream)
at System.Windows.Application.LoadComponent(Object component, Uri resourceLocator)
at X.Y.Z.Views.LogMessagesView.InitializeComponent() in E:\Dev\WS1\Branches\ReworkedServer\Solution\AAAAAA\Views\LogMessagesView.xaml:line 1
InnerException:
HResult=-2147467263
Message=The method or operation is not implemented.
Source=PresentationFramework
StackTrace:
at System.Windows.Baml2006.Baml2006SchemaContext.ResolveBamlType(BamlType bamlType, Int16 typeId)
at System.Windows.Baml2006.Baml2006SchemaContext.GetXamlType(Int16 typeId)
at System.Windows.Baml2006.Baml2006Reader.Process_ElementStart()
at System.Windows.Baml2006.Baml2006Reader.ReadObject(KeyRecord record)
at System.Windows.ResourceDictionary.CreateObject(KeyRecord key)
at System.Windows.ResourceDictionary.OnGettingValue(Object key, Object& value, Boolean& canCache)
at System.Windows.ResourceDictionary.OnGettingValuePrivate(Object key, Object& value, Boolean& canCache)
at System.Windows.ResourceDictionary.GetValueWithoutLock(Object key, Boolean& canCache)
at System.Windows.ResourceDictionary.GetValue(Object key, Boolean& canCache)
at System.Windows.StaticResourceExtension.FindResourceInEnviroment(IServiceProvider serviceProvider, Boolean allowDeferredReference, Boolean mustReturnDeferredResourceReference)
at System.Windows.StaticResourceExtension.TryProvideValueInternal(IServiceProvider serviceProvider, Boolean allowDeferredReference, Boolean mustReturnDeferredResourceReference)
at System.Windows.StaticResourceExtension.ProvideValueInternal(IServiceProvider serviceProvider, Boolean allowDeferredReference)
at System.Windows.StaticResourceExtension.ProvideValue(IServiceProvider serviceProvider)
at MS.Internal.Xaml.Runtime.ClrObjectRuntime.CallProvideValue(MarkupExtension me, IServiceProvider serviceProvider)
InnerException:
重要的转换器:
public class CollectionToCriteriaOperatorConverter : IValueConverter
{
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
String columnName = parameter as String;
if (string.IsNullOrEmpty(columnName))
{
throw new ArgumentNullException(nameof(columnName), "You have to provide a valid column name");
}
IEnumerable collection = value as IEnumerable;
if (collection == null)
{
return null;
}
return new InOperator(new OperandProperty(columnName), collection.OfType<object>().Select(x => new OperandValue(x)));
}
public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
{
throw new NotImplementedException();
}
}
我发现了其他一些情况，但是他们说转换器应该在使用之前初始化(看起来是这样，对吧?)
I found some other cases, but they were saying that the converter should be initialized before their usage(which seems to be the case, right?)
我也在使用Prism，我不知道它是否还会带来其他一些问题(此用户控件已放入视图中).
I'm also using Prism, I don't know if it can brings some other issues(this usercontrol is put into a view).
我想念什么?
推荐答案
我刚刚发现了问题所在.我在Visual Studio中崩溃，Visual Studio将目标重置为混合平台".我不知道为什么它不能正常工作，但是我们的某些项目没有针对该平台的目标.
I just found what was the issue. I had a crash of Visual Studio, and Visual Studio reseted the target to "Mixed platform". I don't know why exactly it was not working, but some of our projects doesn't have a target for this platform.
我再次将其设置为32位，现在一切正常.
I set it back again to 32bits and now everything is working.
这篇关于在"System.Windows.StaticResourceExtension"上提供值的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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