[英]Error - already defines a member called 'InitializeComponent' with the same parameter types
I tried to make an example of the book that shows exactly我试图为这本书做一个例子,它准确地显示了
private Button button1;
public MainWindow()
{
InitializeComponent();
}
private void InitializeComponent()
{
// Configure the form.
this.Width = this.Height = 285;
this.Left = this.Top = 100;
this.Title = "Code-Only Window";
// Create a container to hold a button.
DockPanel panel = new DockPanel();
// Create the button.
button1 = new Button();
button1.Content = "Please click me.";
button1.Margin = new Thickness(30);
// Attach the event handler.
button1.Click += button1_Click;
// Place the button in the panel.
IAddChild container = panel;
container.AddChild(button1);
// Place the panel in the form.
container = this;
container.AddChild(panel);
}
private void button1_Click(object sender, RoutedEventArgs e)
{
button1.Content = "Thank you.";
}
But it gives me an error:但它给了我一个错误:
"Type 'WpfApplication1.MainWindow' already defines a member called 'InitializeComponent' with the same parameter types"
WPF Window
class created in Visual Studio usually has InitializeComponent
method that is used to initialize its properties and contents - What does InitializeComponent() do, and how does it work in WPF?在 Visual Studio 中创建的 WPF Window
类通常具有用于初始化其属性和内容的InitializeComponent
方法 - InitializeComponent() 做什么,它在 WPF 中如何工作? . .
It is generated from your XAML markup and is not contained in your code-behind .cs file, but for the compiler(and msbuild.exe) it is still a valid intrinsic part of the Window class - if you create new empty Window and click on InitializeComponent()
call then a *.gics
temporary file with initialization code will be opened.它是从您的 XAML 标记生成的,不包含在您的代码隐藏 .cs 文件中,但对于 编译器(和 msbuild.exe),它仍然是 Window 类的有效内部部分 - 如果您创建新的空 Window 并单击在InitializeComponent()
调用时,将打开带有初始化代码的*.gics
临时文件。
So , when you put another InitializeComponent
method into the code behind file it causes ambiguous method definition.因此,当您将另一个InitializeComponent
方法放入代码隐藏文件时,它会导致方法定义不明确。
SOLUTION:解决方案:
Either rename your custom method to InitializeComponentsCustom
and call it in the constructor:将您的自定义方法重命名为InitializeComponentsCustom
并在构造函数中调用它:
public MainWindow()
{
InitializeComponent();
InitializeComponentsCustom();
}
private void InitializeComponentsCustom()
{
// ...
}
or just put the entire code from book method into the constructor(just do not remove the original InitializeComponent
call).或者只是将 book 方法中的整个代码放入构造函数中(只是不要删除原始的InitializeComponent
调用)。
当您定义 MainWindow.xaml 时,会在 MainWindow.g.cs 中自动生成InitializeComponent
方法。
Like I said in my comment, read .就像我在评论中说的,阅读。 Reading properly is a virtue you'll need during your programming career.正确阅读是您在编程生涯中需要的一种美德。
You need to closely follow the note in the book:您需要密切关注书中的注释:
To create this example, you must code the Window1 class from scratch (right-click the Solution Explorer and choose Add -> Class to get started).要创建此示例,您必须从头开始编写 Window1 类(右键单击解决方案资源管理器并选择添加 -> 类以开始)。 You can't choose Add -> Window, because that will add a code file and a XAML template for your window, complete with an automatically generated InitializeComponent() method.您不能选择添加 -> 窗口,因为这将为您的窗口添加代码文件和XAML 模板,并带有自动生成的 InitializeComponent() 方法。
The error you get also tells you this: you're trying to define another InitializeComponent()
method.您得到的错误还告诉您:您正在尝试定义另一个InitializeComponent()
方法。
For me it was using a Cocoa Framework Binding with Xamarin iOS对我来说,它使用了 Cocoa Framework Binding 和 Xamarin iOS
The View i used had two constructors named init() with different overloads.我使用的视图有两个名为 init() 的构造函数,它们具有不同的重载。
I deleted one of them in the ApiDefinition.cs, which did the trick for me.我在 ApiDefinition.cs 中删除了其中一个,这对我有用。 Maybe this will help someone.也许这会帮助某人。
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