利用C#实现子窗口的弹出与隐藏动画

在C#中，你可以使用Windows Forms或WPF来创建子窗口并实现弹出和隐藏动画。这里我将分别为这两种技术提供一个示例。

Windows Forms 示例：

首先，确保你已经添加了System.Windows.Forms引用。

1. 创建一个新的Windows Forms应用程序项目。
2. 在解决方案资源管理器中，双击Form1以打开设计器。
3. 从工具箱中，将一个Button控件拖放到Form1上。
4. 双击Button以创建button1_Click事件处理程序。
5. 在Form1类中，添加以下代码：

using System; using System.Windows.Forms;  public partial class Form1 : Form {     private Form childForm;      public Form1()     {         InitializeComponent();     }      private void button1_Click(object sender, EventArgs e)     {         if (childForm == null)         {             childForm = new Form();             childForm.Size = new System.Drawing.Size(200, 200);             childForm.StartPosition = FormStartPosition.Manual;             childForm.Location = new System.Drawing.Point(this.Location.X + this.Width, this.Location.Y);             childForm.FormClosed += ChildForm_FormClosed;         }          if (childForm.Visible)         {             HideChildForm();         }         else         {             ShowChildForm();         }     }      private void ShowChildForm()     {         childForm.Show();         Timer timer = new Timer();         timer.Interval = 10;         timer.Tick += (sender, e) =>         {             if (childForm.Width < 200)             {                 childForm.Width += 20;                 childForm.Left -= 10;             }             else             {                 timer.Stop();             }         };         timer.Start();     }      private void HideChildForm()     {         Timer timer = new Timer();         timer.Interval = 10;         timer.Tick += (sender, e) =>         {             if (childForm.Width > 0)             {                 childForm.Width -= 20;                 childForm.Left += 10;             }             else             {                 childForm.Hide();                 timer.Stop();             }         };         timer.Start();     }      private void ChildForm_FormClosed(object sender, FormClosedEventArgs e)     {         childForm = null;     } } 

WPF 示例：

首先，确保你已经添加了PresentationFramework和System.Windows引用。

1. 创建一个新的WPF应用程序项目。
2. 在解决方案资源管理器中，双击MainWindow.xaml以打开设计器。
3. 在MainWindow.xaml中，添加以下代码：

        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"         Title="MainWindow" Height="200" Width="200">     <Grid>        <Button Content="Toggle Child Window" Click="Button_Click"/>     </Grid> </Window> 

4. 在MainWindow.xaml.cs中，添加以下代码：

using System; using System.Windows; using System.Windows.Media.Animation;  namespace WpfApp {     public partial class MainWindow : Window     {         private Window childWindow;          public MainWindow()         {             InitializeComponent();         }          private void Button_Click(object sender, RoutedEventArgs e)         {             if (childWindow == null)             {                 childWindow = new Window();                 childWindow.Title = "Child Window";                 childWindow.Width = 200;                 childWindow.Height = 200;                 childWindow.WindowStartupLocation = WindowStartupLocation.Manual;                 childWindow.Left = this.Left + this.Width;                 childWindow.Top = this.Top;                 childWindow.Closed += ChildWindow_Closed;             }              if (childWindow.Visibility == Visibility.Visible)             {                 HideChildWindow();             }             else             {                 ShowChildWindow();             }         }          private void ShowChildWindow()         {             DoubleAnimation widthAnimation = new DoubleAnimation(0, 200, TimeSpan.FromMilliseconds(200));             DoubleAnimation leftAnimation = new DoubleAnimation(childWindow.Left - 200, childWindow.Left, TimeSpan.FromMilliseconds(200));             childWindow.BeginAnimation(Window.WidthProperty, widthAnimation);             childWindow.BeginAnimation(Window.LeftProperty, leftAnimation);             childWindow.Show();         }          private void HideChildWindow()         {             DoubleAnimation widthAnimation = new DoubleAnimation(200, 0, TimeSpan.FromMilliseconds(200));             DoubleAnimation leftAnimation = new DoubleAnimation(childWindow.Left, childWindow.Left + 200, TimeSpan.FromMilliseconds(200));             childWindow.BeginAnimation(Window.WidthProperty, widthAnimation);             childWindow.BeginAnimation(Window.LeftProperty, leftAnimation);             childWindow.Visibility = Visibility.Hidden;         }          private void ChildWindow_Closed(object sender, EventArgs e)         {             childWindow = null;         }     } } 

这些示例将创建一个主窗口，其中包含一个按钮。当单击该按钮时，将显示或隐藏子窗口，同时使用动画效果展开或收起子窗口。