collaborativePlatform/CollaborativePlatformProject/MainWindow.xaml

<Window x:Class="CollaborativePlatformProject.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        xmlns:local="clr-namespace:CollaborativePlatformProject"
        xmlns:HandyControl="clr-namespace:HandyControl.Controls;assembly=HandyControl"
        xmlns:LayUI="clr-namespace:LayUI.Wpf.Controls;assembly=LayUI.Wpf"
        mc:Ignorable="d"
        AllowsTransparency="True"
        Background=" Transparent"
        WindowStartupLocation="CenterScreen"
        WindowStyle="None"
        Title="" Height="500" Width="350" ResizeMode="NoResize">

    <LayUI:LayTitleBar Background="{DynamicResource Blue}"   CornerRadius="10"
                       WindowState="{Binding WindowState, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}">

        <Border  CornerRadius="0 0 10 10" Background="White">
            <StackPanel>
                <StackPanel Background="{DynamicResource Blue}" Height="150">
                    <Canvas Background="White" Width="80" Height="80">
                        <Image  Width="80" Height="80" Panel.ZIndex="0">
                            <Image.Clip>
                                <EllipseGeometry RadiusX="40" RadiusY="40" Center="40,40" />
                            </Image.Clip>
                        </Image>
                    </Canvas>

                    <TextBlock Margin="0 10 0 0" Text="协同登录平台"  HorizontalAlignment="Center" Foreground="Wheat" FontSize="18" />
                </StackPanel>

                <StackPanel Name="sp_Login" Margin="0 50 0 0" Visibility="Visible">
                    <!--账户密码-->
                    <DockPanel>
                        <LayUI:LayTextBlock Width="70" FontSize="18" Margin="30 0 0 0" Text="账号："  VerticalAlignment="Center"></LayUI:LayTextBlock>
                        <LayUI:LayTextBox Name="tb_userName" LayUI:Watermark="请输入账号" HorizontalAlignment="Left" Width="200"></LayUI:LayTextBox>
                    </DockPanel>
                    <DockPanel Margin=" 0 30 0 0">
                        <LayUI:LayTextBlock Width="70" FontSize="18" Margin="30 0 0 0" Text="密码：" VerticalAlignment="Center"></LayUI:LayTextBlock>
                        <LayUI:LayPasswordBox Name="tb_userPwd" HorizontalAlignment="Left" Width="200"></LayUI:LayPasswordBox>
                        <!--<TextBox HorizontalAlignment="Left" Width="200"></TextBox>-->
                    </DockPanel>
                    <!--登陆按钮-->
                    <DockPanel Margin=" 0 38 0 0">
                        <LayUI:LayButton HorizontalAlignment="Left" Height="30" Margin="50 0 0 0" Content="登陆" FontSize="15"
                                     Click="LoginLayButton_Click" />
                        <LayUI:LayButton HorizontalAlignment="Left" Height="30" Margin="60 0 0 0" Content="注册" FontSize="15"
                                     Click="RegisterLayButton_Click" />
                    </DockPanel>

                    <DockPanel Margin="0 20 0 0">
                        <LayUI:LayButton HorizontalAlignment="Right" Height="30" Margin="0 0 38 0" Click="TemporaryLogin_Click" Content="临时登陆" FontSize="15"></LayUI:LayButton>
                    </DockPanel>
                </StackPanel>

                <StackPanel Name="sp_Register" Margin="0 50 0 0" Visibility="Collapsed">
                    <!--账户密码-->
                    <DockPanel>
                        <LayUI:LayTextBlock Width="70" FontSize="18" Margin="30 0 0 0" Text="账号：" VerticalAlignment="Center"></LayUI:LayTextBlock>
                        <LayUI:LayTextBox Name="tb_rguserName" LayUI:Watermark="请输入账号" HorizontalAlignment="Left" Width="200"></LayUI:LayTextBox>
                    </DockPanel>
                    <DockPanel Margin=" 0 30 0 0">
                        <LayUI:LayTextBlock Width="70" FontSize="18" Margin="30 0 0 0" Text="密码：" VerticalAlignment="Center"></LayUI:LayTextBlock>
                        <LayUI:LayPasswordBox Name="tb_rguserPwd" HorizontalAlignment="Left" Width="200"></LayUI:LayPasswordBox>
                        <!--<TextBox HorizontalAlignment="Left" Width="200"></TextBox>-->
                    </DockPanel>

                    <DockPanel Margin=" 0 30 0 0">
                        <LayUI:LayTextBlock Width="70" FontSize="18" Margin="30 0 0 0" Text="密码：" VerticalAlignment="Center"></LayUI:LayTextBlock>
                        <LayUI:LayPasswordBox Name="tb_rgconuserPwd" LayUI:Watermark="请确认密码" HorizontalAlignment="Left" Width="200"></LayUI:LayPasswordBox>
                        <!--<TextBox HorizontalAlignment="Left" Width="200"></TextBox>-->
                    </DockPanel>

                    <DockPanel Margin="0 20 0 0">
                        <LayUI:LayButton HorizontalAlignment="Center" Height="30"  Content="注册" FontSize="15"></LayUI:LayButton>
                    </DockPanel>
                </StackPanel>

                <StackPanel Name="sp_temporaryLogin" Margin="0 100 0 0"  Visibility="Collapsed">

                    <!--账户密码-->
                    <DockPanel>
                        <LayUI:LayTextBlock Width="70" FontSize="18" Margin="30 0 0 0" Text="邀请码："  VerticalAlignment="Center"></LayUI:LayTextBlock>
                        <LayUI:LayTextBox Name="tb_InvitationCode" LayUI:Watermark="请输入邀请码" HorizontalAlignment="Left" Width="200"></LayUI:LayTextBox>
                    </DockPanel>

                    <DockPanel Margin="0 50 0 0">
                        <LayUI:LayButton HorizontalAlignment="Right" Height="30" Margin="0 0 38 0" Click="TemporaryLogin2_Click" Content="登陆" FontSize="15"></LayUI:LayButton>
                    </DockPanel>


                </StackPanel>
            </StackPanel>
        </Border>
    </LayUI:LayTitleBar>
</Window>