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少量代码设计一个登录界面 - .NET CORE(C#) WPF开发

阅读导航

本文背景
代码实现
本文参考
源码

1. 本文背景

继续 MaterialDesignThemes 开源控件库学习，本文简单使用输入控件的水印附加属性：materialDesign:HintAssist.Hint。

2. 代码实现

使用 .NET CORE 3.1 创建名为 “Login” 的WPF模板项目，添加1个Nuget库：MaterialDesignThemes.3.1.0-ci981。

解决方案主要文件目录组织结构：

2.1 App.xaml文件引入样式

文件【App.xaml】，在 StartupUri 中设置启动的视图【MainWindow.xaml】，并在【Application.Resources】节点增加 MaterialDesignThemes库的样式文件：

<Application x:Class="Login.App"

             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

             xmlns:local="clr-namespace:Login"

             StartupUri="MainWindow.xaml">

    <Application.Resources>

        <ResourceDictionary>

            <ResourceDictionary.MergedDictionaries>

                <ResourceDictionary Source="pack://application:,,,/MaterialDesignThemes.Wpf;component/Themes/MaterialDesignTheme.Light.xaml" />

                <ResourceDictionary Source="pack://application:,,,/MaterialDesignThemes.Wpf;component/Themes/MaterialDesignTheme.Defaults.xaml" />

                <ResourceDictionary Source="pack://application:,,,/MaterialDesignColors;component/Themes/Recommended/Primary/MaterialDesignColor.Blue.xaml" />

                <ResourceDictionary Source="pack://application:,,,/MaterialDesignColors;component/Themes/Recommended/Accent/MaterialDesignColor.Indigo.xaml" />

            </ResourceDictionary.MergedDictionaries>

        </ResourceDictionary>

    </Application.Resources>

</Application>

2.2 MainWindow.xaml 登录窗体

文件【MainWindow.xaml】，设计登录主界面，代码量很小，源码如下：

<Window x:Class="Login.MainWindow"

        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

        xmlns:materialDesign="http://materialdesigninxaml.net/winfx/xaml/themes"

        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"

        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"

        mc:Ignorable="d"

        Title="登录" Height="500" Width="350"

        ResizeMode="NoResize"

        WindowStartupLocation="CenterScreen"

        WindowStyle="None"

        MouseLeftButtonDown="MoveWindow_MouseLeftButtonDown"

        FontFamily="Segoe UI Emoji">

    <Grid>

        <Rectangle Height="280" VerticalAlignment="Top">

            <Rectangle.Fill>

                <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">

                    <GradientStop Color="#FF2281D1"/>

                    <GradientStop Color="#FF34268A" Offset="1"/>

                    <GradientStop Color="#FF33288B" Offset="0.546"/>

                </LinearGradientBrush>

            </Rectangle.Fill>

        </Rectangle>

        <Rectangle Width="280" Height="240" VerticalAlignment="Bottom" Margin="0,80" RadiusY="10" RadiusX="10" Fill="White">

            <Rectangle.Effect>

                <DropShadowEffect BlurRadius="15" Direction="0" RenderingBias="Quality" ShadowDepth="1" Color="#FFBBBBBB"/>

            </Rectangle.Effect>

        </Rectangle>

        <Grid VerticalAlignment="Bottom" Margin="35,80" Height="240">

            <Label Content="登录" HorizontalAlignment="Center" VerticalAlignment="Top" Margin="5" Foreground="Gray" FontSize="18"/>

            <StackPanel VerticalAlignment="Center" Margin="15">

                <TextBox Margin="0,10" materialDesign:HintAssist.Hint="账号" Style="{StaticResource MaterialDesignFloatingHintTextBox}" FontFamily="Champagne &amp; Limousines" FontSize="18"/>

                <PasswordBox Margin="0,10" materialDesign:HintAssist.Hint="密码" Style="{StaticResource MaterialDesignFloatingHintPasswordBox}" FontFamily="Champagne &amp; Limousines" FontSize="18"/>

            </StackPanel>

        </Grid>

        <Button Width="150" HorizontalAlignment="Center" VerticalAlignment="Bottom" Margin="0,65" Content="LOGIN"/>

        <TextBlock Text="忘记密码？" HorizontalAlignment="Center" VerticalAlignment="Bottom" Margin="30" Foreground="Gray" Cursor="Hand"/>

        <Button HorizontalAlignment="Right" VerticalAlignment="Top" Background="{x:Null}" BorderBrush="{x:Null}" Click="Close_Click">

            <materialDesign:PackIcon Kind="Close"/>

        </Button>

        <Image Source="https://img.dotnet9.com/logo-foot.png" Width="100" Height="100" VerticalAlignment="Top" Margin="30"/>

    </Grid>

</Window>

下面是后台代码：文件【MainWindow.xaml.cs】，关闭窗体、窗体移动等事件处理。

using System.Windows;

using System.Windows.Input;

namespace Login

{

    /// <summary>

    /// Interaction logic for MainWindow.xaml

    /// </summary>

    public partial class MainWindow : Window

    {

        public MainWindow()

        {

            InitializeComponent();

        }

        private void MoveWindow_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)

        {

            DragMove();

        }

        private void Close_Click(object sender, RoutedEventArgs e)

        {

            this.Close();

        }

    }

}

3.本文参考

视频一：C# WPF Material Design UI: Login Window，配套源码：Login2。
C# WPF开源控件库《MaterialDesignInXAML》

4.源码

演示代码已全部奉上，为了方便演示，代码中的图片使用本站外链，代码可直接拷贝并按代码结构组织编译即可运行。

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