BlankPage构造函数无法初始化组件 [英] BlankPage constructor cannot initialize components

问题描述

我正在开始学习XAML ，我将一些代码添加到我的BlankPage应用程序中.突然，一个构造函数正在初始化一个组件:

I'm starting learning XAML and I add some code to my BlankPage application. And suddenly a constructor which is initializing a component:

    public BlankPage()
    {
        this.InitializeComponent();
    }

停止工作.我现在遇到了这个错误:

Stop working. I've got now that error:

'BlankApplication.BlankPage'不包含'InitializeComponent'的定义，也找不到扩展方法'InitializeComponent'接受类型为'BlankApplication.BlankPage'的第一个参数(您是否缺少using指令或程序集引用? )

'BlankApplication.BlankPage' does not contain a definition for 'InitializeComponent' and no extension method 'InitializeComponent' accepting a first argument of type 'BlankApplication.BlankPage' could be found (are you missing a using directive or an assembly reference?)

老实说，我什么也没做，我什至没有看这部分代码，现在它不起作用了.

Honestly I didn't do anything, I didn't even look at this part of code and now it doesn't work.

屏幕截图:

推荐答案

如果主类的命名空间与.xaml文件的 x:Class 属性不同，您将获得这个错误.例如；

If your Main class's namespace is different than .xaml file's x:Class attribute, you will get this error. For instance;

您的MainPage.xaml.cs;

Your MainPage.xaml.cs;

    namespace UWPControls
    {
        /// <summary>
        /// An empty page that can be used on its own or navigated to within a Frame.
        /// </summary>
        public sealed partial class MainPage : Page
        {
            public MainPage()
            {
                this.InitializeComponent();
            }
        }
    }

您的MainPage.xaml;

Your MainPage.xaml;

<Page
    x:Class="UWPControls_Different.MainPage"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="using:UWPHelloWorld"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d">
</page>

您将看到错误，直到将 x:class 更改为；

You're going to see the error until changing x:class to the;

x:Class ="UWPControls.MainPage"

x:Class="UWPControls.MainPage"

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