WPF基础系列九：实现窗体放大/缩小/还原/关闭功能

WPF基础系列九：实现窗体放大/缩小/还原/关闭功能

---

---

前言

少量代码，点击Button按键，实现窗体放大/缩小/还原/关闭功能。实例参考：WPF实例系列一：登录、注册界面设计

---

一、演示

二、源码

xaml代码：

<StackPanel Orientation="Horizontal" VerticalAlignment="Center" HorizontalAlignment="Right" >
     <Button Name="btnmin" Width="50" Height="30" Content="—" Foreground="White" BorderThickness="0" Background="Transparent" Click="btnMin_Click"/>
     <Button Name="btnmax" Width="50" Height="30" Content="☐" Foreground="White" BorderThickness="0" Background="Transparent" Click="btnMaxOrNormal_Click"/>
     <Button Name="btnclose" Width="50" Height="30" Content="✕" Foreground="White" BorderThickness="0" Background="Transparent" Click="btnClose_Click" />
 StackPanel>

后台代码：

    #region 窗体放大、还原、缩小、关闭功能实现
        private void btnMin_Click(object sender, RoutedEventArgs e)
        {
     
            this.WindowState = WindowState.Minimized;
        }

        private void btnMaxOrNormal_Click(object sender, RoutedEventArgs e)
        {
     
            if (this.WindowState == WindowState.Maximized)
            {
     
                // 如果窗口已经最大化，则恢恢复为正常大小
                this.WindowState = WindowState.Normal;

                //更改按钮样式
                btnmax.Content = "☐";
            }
            else
            {
     
                // 否则，窗口为正常时，将其最大化
                this.WindowState = WindowState.Maximized;

                //更改按钮样式
                btnmax.Content = "[-]";
            }
        }

        private void btnClose_Click(object sender, RoutedEventArgs e)
        {
     
            this.Close();
        }
        #endregion