c++ - 'Button_Click' : is not a member of 'ButtonTest::MainPage'

Question

我是 C++ 和 Windows 应用商店编程的新手，我一直在定义按钮上的点击处理程序。我指的是 these说明:

1. Add a Button control to a parent container.
2. To assign a name to the button, set the x:Name attribute to a string value. To refer to a control in code, it must have a name. Otherwise, a name is not required.
3. To assign a label to the button, set the Content property to a string value.
4. To perform an action when a user clicks the button, add a handler for the Click event. In the Click event handler, add code to perform some action.

<Button x:Name="button1" Content="Button"
Click="Button_Click" />

void MainPage::Button_Click(Object^ sender, RoutedEventArgs^ e) {<br/>
// Add code to perform some action here.<br/>
}

• 我添加了 <Button x:Name="button1" Content="Button" Click="Button_Click" />在Grid里面阻止 MainPage.xaml .
• 我添加了 void MainPage::Button_Click(Object^ sender, RoutedEventArgs^ e) {...}在 MainPage.xaml.cpp .

现在我遇到两个错误，我无法解决:

error C2039: 'Button_Click' : is not a member of 'ButtonTest::MainPage'

和

IntelliSense: class "ButtonTest::MainPage" has no member "Button_Click"

我该如何解决这个问题？

Answer 1

您需要在 MainPage.xaml.h 文件中将 MainPage::Button_Click 的原型(prototype)定义为该类的成员。喜欢

public:

    Button_Click(object^, RoutedEventArgs^);

C++ 需要每个方法的原型(prototype)。