我在XAML中编写了一个用户控件，编译后生成的C#代码里有这一行：
using Microsoft.Windows.Themes;
现在会抛出一个错误：
类型或命名空间名称"Themes"在命名空间"Microsoft.Windows"中不存在(是否缺少程序集引用?)
我认为由于我无法影响已编译的C#的输出（XAML中没有什么可以删除的），因此我只需将其作为引用添加即可。
但是，添加引用对话框中不包含Microsoft.Windows.Themes。这不是.NET的一部分吗？
以下是导致此问题的示例XAML用户控件：
<UserControl x:Class="GG.UserControls.MainMenu"
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">
<StackPanel>
<Menu VerticalAlignment="Top" Background="{x:Null}">
... // Just static menu items.
</Menu>
</StackPanel>
</UserControl>
还有它的 C# 后台代码：
using System;
using System.Windows.Controls;
namespace GG.UserControls
{
/// <summary>
/// Interaction logic for MainMenu.xaml
/// </summary>
public partial class MainMenu : UserControl
{
public MainMenu()
{
InitializeComponent();
}
}
}
以下是C#编译代码的示例：
#pragma checksum "..\..\..\..\UserControls\MainMenu.xaml" "{406ea660-64cf-4c82-b6f0-42d48172a799}" "5A85C5B16565514165AD23641F944BC6"
//------------------------------------------------------------------------------
// <auto-generated>
// This code was generated by a tool.
// Runtime Version:4.0.30319.17020
//
// Changes to this file may cause incorrect behavior and will be lost if
// the code is regenerated.
// </auto-generated>
//------------------------------------------------------------------------------
using GG;
using GG.UserControls;
using Microsoft.Windows.Shell;
using Microsoft.Windows.Themes; // <---- WTF?
using System;
using System.Diagnostics;
using System.Windows;
using System.Windows.Automation;
using System.Windows.Controls;
using System.Windows.Controls.Primitives;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Ink;
using System.Windows.Input;
using System.Windows.Markup;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Media.Effects;
using System.Windows.Media.Imaging;
using System.Windows.Media.Media3D;
using System.Windows.Media.TextFormatting;
using System.Windows.Navigation;
using System.Windows.Shapes;
using System.Windows.Shell;
namespace GG.UserControls {
/// <summary>
/// ChangesetHistory
/// </summary>
public partial class MainMenu : System.Windows.Controls.UserControl, System.Windows.Markup.IComponentConnector {
private bool _contentLoaded;
/// <summary>
/// InitializeComponent
/// </summary>
[System.Diagnostics.DebuggerNonUserCodeAttribute()]
[System.CodeDom.Compiler.GeneratedCodeAttribute("PresentationBuildTasks", "4.0.0.0")]
public void InitializeComponent() {
if (_contentLoaded) {
return;
}
_contentLoaded = true;
System.Uri resourceLocater = new System.Uri("/GG;component/usercontrols/mainmenu.xaml", System.UriKind.Relative);
#line 1 "..\..\..\..\UserControls\MainMenu.xaml"
System.Windows.Application.LoadComponent(this, resourceLocater);
#line default
#line hidden
}
[System.Diagnostics.DebuggerNonUserCodeAttribute()]
[System.CodeDom.Compiler.GeneratedCodeAttribute("PresentationBuildTasks", "4.0.0.0")]
[System.ComponentModel.EditorBrowsableAttribute(System.ComponentModel.EditorBrowsableState.Never)]
[System.Diagnostics.CodeAnalysis.SuppressMessageAttribute("Microsoft.Design", "CA1033:InterfaceMethodsShouldBeCallableByChildTypes")]
[System.Diagnostics.CodeAnalysis.SuppressMessageAttribute("Microsoft.Maintainability", "CA1502:AvoidExcessiveComplexity")]
[System.Diagnostics.CodeAnalysis.SuppressMessageAttribute("Microsoft.Performance", "CA1800:DoNotCastUnnecessarily")]
void System.Windows.Markup.IComponentConnector.Connect(int connectionId, object target) {
this._contentLoaded = true;
}
}
}