c# - CheckBox、IsChecked == false 不起作用

Question

private void checkBox1_Checked(object sender, RoutedEventArgs e)
{
    if (checkBox1.IsChecked == false)
    {
        grid1.Visibility = System.Windows.Visibility.Hidden;
    }

    if (checkBox1.IsChecked == true)
    {
        grid1.Visibility = Visibility;
    }

}

为什么 grid1.Visibility = System.Windows.Visibility.Hidden; 不工作，网格没有隐藏

Answer 1

您正在处理 Checked 事件，该事件仅在 CheckBox 被选中时发生，而不是在未选中时发生。要解决此问题，请处理 Unchecked event还有:

private void checkBox1_Checked(object sender, RoutedEventArgs e) 
{ 
    grid1.Visibility = System.Windows.Visibility.Visible; 
} 

private void checkBox1_Unchecked(object sender, RoutedEventArgs e) 
{ 
    grid1.Visibility = System.Windows.Visibility.Hidden; 
}