C#编译报错： error CS1069: 未能在命名空间“System.Windows.Markup”中找到类型名“IComponentConnector”

文章目录

问题现象
解决方案
问题现象

一个以前使用.NET Framwork 3.0框架开发的项目，在框架升级到.NET Framwork 4.7.2后，
如下代码：
cpp 复制代码
#pragma checksum "..\..\XpsViewer.xaml" "{8829d00f-11b8-4213-878b-770e8597ac16}" "4141923E04B8F37EBAC5AA6FD24010A2242046815AD9C4F159F31F5E02A435EE"
//------------------------------------------------------------------------------
// <auto-generated>
//     此代码由工具生成。
//     运行时版本:4.0.30319.42000
//
//     对此文件的更改可能会导致不正确的行为，并且如果
//     重新生成代码，这些更改将会丢失。
// </auto-generated>
//------------------------------------------------------------------------------

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.Forms.Integration;
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 xpsview {
    
    
    /// <summary>
    /// XpsViewer
    /// </summary>
    public partial class XpsViewer : System.Windows.Controls.UserControl, System.Windows.Markup.IComponentConnector, System.Windows.Markup.IStyleConnector {
        
        
        #line 114 "..\..\XpsViewer.xaml"
        [System.Diagnostics.CodeAnalysis.SuppressMessageAttribute("Microsoft.Performance", "CA1823:AvoidUnusedPrivateFields")]
        internal System.Windows.Controls.DocumentViewer documentViewer;
        
        #line default
        #line hidden
        
        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("/xpsview;component/xpsviewer.xaml", System.UriKind.Relative);
            
            #line 1 "..\..\XpsViewer.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) {
            switch (connectionId)
            {
            case 1:
            
            #line 4 "..\..\XpsViewer.xaml"
            ((xpsview.XpsViewer)(target)).Loaded += new System.Windows.RoutedEventHandler(this.UserControl_Loaded);
            
            #line default
            #line hidden
            
            #line 4 "..\..\XpsViewer.xaml"
            ((xpsview.XpsViewer)(target)).KeyUp += new System.Windows.Input.KeyEventHandler(this.UserControl_KeyUp);
            
            #line default
            #line hidden
            
            #line 4 "..\..\XpsViewer.xaml"
            ((xpsview.XpsViewer)(target)).KeyDown += new System.Windows.Input.KeyEventHandler(this.UserControl_KeyDown);
            
            #line default
            #line hidden
            return;
            case 26:
            this.documentViewer = ((System.Windows.Controls.DocumentViewer)(target));
            
            #line 114 "..\..\XpsViewer.xaml"
            this.documentViewer.AddHandler(System.Windows.Documents.Hyperlink.RequestNavigateEvent, new System.Windows.Navigation.RequestNavigateEventHandler(this.documentViewer_RequestNavigate));
            
            #line default
            #line hidden
            
            #line 114 "..\..\XpsViewer.xaml"
            this.documentViewer.TargetUpdated += new System.EventHandler<System.Windows.Data.DataTransferEventArgs>(this.documentViewer_TargetUpdated);
            
            #line default
            #line hidden
            return;
            case 27:
            
            #line 117 "..\..\XpsViewer.xaml"
            ((System.Windows.Input.CommandBinding)(target)).CanExecute += new System.Windows.Input.CanExecuteRoutedEventHandler(this.CommandBinding_CanExecutePrint);
            
            #line default
            #line hidden
            return;
            case 28:
            
            #line 118 "..\..\XpsViewer.xaml"
            ((System.Windows.Input.CommandBinding)(target)).CanExecute += new System.Windows.Input.CanExecuteRoutedEventHandler(this.CommandBinding_CanExecuteCopy);
            
            #line default
            #line hidden
            return;
            }
            this._contentLoaded = true;
        }
        
        [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.Performance", "CA1800:DoNotCastUnnecessarily")]
        [System.Diagnostics.CodeAnalysis.SuppressMessageAttribute("Microsoft.Maintainability", "CA1502:AvoidExcessiveComplexity")]
        void System.Windows.Markup.IStyleConnector.Connect(int connectionId, object target) {
            switch (connectionId)
            {
            case 2:
            
            #line 28 "..\..\XpsViewer.xaml"
            ((System.Windows.Controls.Button)(target)).Click += new System.Windows.RoutedEventHandler(this.btnQuit_Click);
            
            #line default
            #line hidden
            
            #line 28 "..\..\XpsViewer.xaml"
            ((System.Windows.Controls.Button)(target)).Loaded += new System.Windows.RoutedEventHandler(this.btnQuit_Loaded);
            
            #line default
            #line hidden
            break;
            case 3:
            
            #line 29 "..\..\XpsViewer.xaml"
            ((System.Windows.Controls.Image)(target)).Loaded += new System.Windows.RoutedEventHandler(this.changeLanguage);
            
            #line default
            #line hidden
            break;
            case 4:
            
            #line 31 "..\..\XpsViewer.xaml"
            ((System.Windows.Controls.Label)(target)).Loaded += new System.Windows.RoutedEventHandler(this.btnQuit_Loaded);
            
            #line default
            #line hidden
            break;
            case 5:
            
            #line 32 "..\..\XpsViewer.xaml"
            ((System.Windows.Controls.Separator)(target)).Loaded += new System.Windows.RoutedEventHandler(this.btnQuit_Loaded);
            
            #line default
            #line hidden
            break;
            case 6:
            
            #line 34 "..\..\XpsViewer.xaml"
            ((System.Windows.Controls.Button)(target)).Click += new System.Windows.RoutedEventHandler(this.btnPrint_Click);
            
            #line default
            #line hidden
            
            #line 34 "..\..\XpsViewer.xaml"
            ((System.Windows.Controls.Button)(target)).Loaded += new System.Windows.RoutedEventHandler(this.PrintSupport_Loaded);
            
            #line default
            #line hidden
            break;
            case 7:
            
            #line 35 "..\..\XpsViewer.xaml"
            ((System.Windows.Controls.Image)(target)).Loaded += new System.Windows.RoutedEventHandler(this.changeLanguage);
            
            #line default
            #line hidden
            break;
            case 8:
            
            #line 37 "..\..\XpsViewer.xaml"
            ((System.Windows.Controls.Separator)(target)).Loaded += new System.Windows.RoutedEventHandler(this.PrintSupport_Loaded);
            
            #line default
            #line hidden
            break;
            case 9:
            
            #line 41 "..\..\XpsViewer.xaml"
            ((System.Windows.Controls.Image)(target)).Loaded += new System.Windows.RoutedEventHandler(this.changeLanguage);
            
            #line default
            #line hidden
            break;
            case 10:
            
            #line 45 "..\..\XpsViewer.xaml"
            ((System.Windows.Controls.Image)(target)).Loaded += new System.Windows.RoutedEventHandler(this.changeLanguage);
            
            #line default
            #line hidden
            break;
            case 11:
            
            #line 53 "..\..\XpsViewer.xaml"
            ((System.Windows.Controls.Image)(target)).Loaded += new System.Windows.RoutedEventHandler(this.changeLanguage);
            
            #line default
            #line hidden
            break;
            case 12:
            
            #line 57 "..\..\XpsViewer.xaml"
            ((System.Windows.Controls.Image)(target)).Loaded += new System.Windows.RoutedEventHandler(this.changeLanguage);
            
            #line default
            #line hidden
            break;
            case 13:
            
            #line 61 "..\..\XpsViewer.xaml"
            ((System.Windows.Controls.Image)(target)).Loaded += new System.Windows.RoutedEventHandler(this.changeLanguage);
            
            #line default
            #line hidden
            break;
            case 14:
            
            #line 65 "..\..\XpsViewer.xaml"
            ((System.Windows.Controls.Image)(target)).Loaded += new System.Windows.RoutedEventHandler(this.changeLanguage);
            
            #line default
            #line hidden
            break;
            case 15:
            
            #line 68 "..\..\XpsViewer.xaml"
            ((System.Windows.Controls.Separator)(target)).Loaded += new System.Windows.RoutedEventHandler(this.seperatorNextPrev_Loaded);
            
            #line default
            #line hidden
            break;
            case 16:
            
            #line 69 "..\..\XpsViewer.xaml"
            ((System.Windows.Controls.Label)(target)).Loaded += new System.Windows.RoutedEventHandler(this.seperatorNextPrev_Loaded);
            
            #line default
            #line hidden
            break;
            case 17:
            
            #line 70 "..\..\XpsViewer.xaml"
            ((System.Windows.Controls.Button)(target)).Click += new System.Windows.RoutedEventHandler(this.btnPrev_Click);
            
            #line default
            #line hidden
            
            #line 70 "..\..\XpsViewer.xaml"
            ((System.Windows.Controls.Button)(target)).Loaded += new System.Windows.RoutedEventHandler(this.seperatorNextPrev_Loaded);
            
            #line default
            #line hidden
            break;
            case 18:
            
            #line 71 "..\..\XpsViewer.xaml"
            ((System.Windows.Controls.Image)(target)).Loaded += new System.Windows.RoutedEventHandler(this.changeLanguage);
            
            #line default
            #line hidden
            break;
            case 19:
            
            #line 73 "..\..\XpsViewer.xaml"
            ((System.Windows.Controls.Button)(target)).Click += new System.Windows.RoutedEventHandler(this.btnNext_Click);
            
            #line default
            #line hidden
            
            #line 73 "..\..\XpsViewer.xaml"
            ((System.Windows.Controls.Button)(target)).Loaded += new System.Windows.RoutedEventHandler(this.seperatorNextPrev_Loaded);
            
            #line default
            #line hidden
            break;
            case 20:
            
            #line 74 "..\..\XpsViewer.xaml"
            ((System.Windows.Controls.Image)(target)).Loaded += new System.Windows.RoutedEventHandler(this.changeLanguage);
            
            #line default
            #line hidden
            break;
            case 21:
            
            #line 77 "..\..\XpsViewer.xaml"
            ((System.Windows.Controls.Label)(target)).Loaded += new System.Windows.RoutedEventHandler(this.seperatorNextPrev_Loaded);
            
            #line default
            #line hidden
            break;
            case 22:
            
            #line 80 "..\..\XpsViewer.xaml"
            ((System.Windows.Controls.TextBox)(target)).Loaded += new System.Windows.RoutedEventHandler(this.editPage_Loaded);
            
            #line default
            #line hidden
            
            #line 80 "..\..\XpsViewer.xaml"
            ((System.Windows.Controls.TextBox)(target)).KeyUp += new System.Windows.Input.KeyEventHandler(this.editPage_KeyUp);
            
            #line default
            #line hidden
            
            #line 80 "..\..\XpsViewer.xaml"
            ((System.Windows.Controls.TextBox)(target)).PreviewTextInput += new System.Windows.Input.TextCompositionEventHandler(this.editPage_PreviewTextInput);
            
            #line default
            #line hidden
            break;
            case 23:
            
            #line 88 "..\..\XpsViewer.xaml"
            ((System.Windows.Controls.Button)(target)).Click += new System.Windows.RoutedEventHandler(this.btnToggle_Click);
            
            #line default
            #line hidden
            break;
            case 24:
            
            #line 89 "..\..\XpsViewer.xaml"
            ((System.Windows.Controls.Image)(target)).Loaded += new System.Windows.RoutedEventHandler(this.changeLanguage);
            
            #line default
            #line hidden
            break;
            case 25:
            
            #line 102 "..\..\XpsViewer.xaml"
            ((System.Windows.Controls.ContentControl)(target)).Loaded += new System.Windows.RoutedEventHandler(this.PART_FindToolBarHost_Loaded);
            
            #line default
            #line hidden
            break;
            }
        }
    }
}
报如下错误：
1>xxx\Viewer.g.cs(41,97,41,116): error CS1069: 未能在命名空间"System.Windows.Markup"中找到类型名"IComponentConnector"。此类型已转发到程序集"System.Xaml, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"。请考虑添加对该程序集的引用。

1>xxx\XpsViewer.g.cs(78,36,78,55): error CS1069: 未能在命名空间"System.Windows.Markup"中找到类型名"IComponentConnector"。此类型已转发到程序集"System.Xaml, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"。请考虑添加对该程序集的引用。

1>xxx\XpsViewer.g.cs(78,14,78,55): error CS0538: '显式接口声明中的"IComponentConnector"不是接口
解决方案

根据错误提示，其实就是需要添加System.Xaml的引用。
添加方法如下：
在项目引用处右键------添加引用------程序集------勾选上"System.Xaml"
如图：