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WPF 实现带蒙版的 MessageBox 消息提示框

WPF 实现带蒙版的 MessageBox 消息提示框

作者：WPFDevelopersOrg

原文链接： https://github.com/WPFDevelopersOrg/WPFDevelopers.Minimal

• 框架使用大于等于.NET40；
• Visual Studio 2022;
• 项目使用 MIT 开源许可协议；
• Nuget Install-Package WPFDevelopers.Minimal 3.2.6-preview

MessageBox

• 实现MessageBox的Show五种方法；
  • Show(string messageBoxText) 传入Msg参数；
  • Show(string messageBoxText, string caption) 传入Msg与标题参数；
  • Show(string messageBoxText, string caption, MessageBoxButton button) 传入Msg与标题、操作按钮参数；
  • Show(string messageBoxText, string caption, MessageBoxImage icon) 传入Msg与标题、消息图片参数；
  • Show(string messageBoxText, string caption, MessageBoxButton button, MessageBoxImage icon) 传入Msg与标题、操作按钮、消息图片参数；
• 拿到父级Window窗体的内容Content,放入一个Grid里,再在容器里放入一个半透明的Grid，最后将整个Grid赋给父级Window窗体的内容Content；

一、MessageBox.cs 代码如下；

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Media;

namespace WPFDevelopers.Minimal.Controls
{
    public static class MessageBox
 {
        public static MessageBoxResult Show(string messageBoxText)
        {
            var msg = new WPFMessageBox(messageBoxText);
            return GetWindow(msg);
        }
        public static MessageBoxResult Show(string messageBoxText, string caption)
        {
            var msg = new WPFMessageBox(messageBoxText, caption);
            return GetWindow(msg);
        }
        public static MessageBoxResult Show(string messageBoxText, string caption, MessageBoxButton button)
        {
            var msg = new WPFMessageBox(messageBoxText, caption, button);
            return GetWindow(msg);
        }
        public static MessageBoxResult Show(string messageBoxText, string caption, MessageBoxImage icon)
        {
            var msg = new WPFMessageBox(messageBoxText, caption, icon);
            return GetWindow(msg);
        }
        public static MessageBoxResult Show(string messageBoxText, string caption, MessageBoxButton button, MessageBoxImage icon)
        {
            var msg = new WPFMessageBox(messageBoxText, caption,button,icon);
            return GetWindow(msg);
        }

        static MessageBoxResult GetWindow(WPFMessageBox msg)
        {
            msg.WindowStartupLocation = WindowStartupLocation.CenterOwner;
            Window win = null;
            if (Application.Current.Windows.Count > 0)
                win = Application.Current.Windows.OfType().FirstOrDefault(o => o.IsActive);
 if (win != null)
 {
 var layer = new Grid() { Background = new SolidColorBrush(Color.FromArgb(128, 0, 0, 0)) };
 UIElement original = win.Content as UIElement;
 win.Content = null;
 var container = new Grid();
 container.Children.Add(original);
 container.Children.Add(layer);
 win.Content = container;
 msg.Owner = win;
 msg.ShowDialog();
 container.Children.Clear();
 win.Content = original;
 }
 else
 msg.Show();
 return msg.Result;
 }
 }
}

二、Styles.MessageBox.xaml 代码如下；

<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
 xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
 xmlns:sys="clr-namespace:System;assembly=mscorlib"
 xmlns:wpfsc="clr-namespace:WPFDevelopers.Minimal.Controls">

    <ResourceDictionary.MergedDictionaries>
        <ResourceDictionary Source="../Themes/Basic/ControlBasic.xaml"/>
        <ResourceDictionary Source="../Themes/Basic/Animations.xaml"/>
    ResourceDictionary.MergedDictionaries>

    <Style TargetType="{x:Type wpfsc:WPFMessageBox}">
 <Setter Property="Foreground" Value="{DynamicResource PrimaryTextSolidColorBrush}" />
 <Setter Property="Background" Value="{DynamicResource WhiteSolidColorBrush}" />
 <Setter Property="BorderBrush" Value="{DynamicResource PrimaryNormalSolidColorBrush}" />
 <Setter Property="SizeToContent" Value="WidthAndHeight" />
 <Setter Property="ResizeMode" Value="NoResize" />
 <Setter Property="ShowInTaskbar" Value="False" />
 <Setter Property="SnapsToDevicePixels" Value="True"/>
 <Setter Property="UseLayoutRounding" Value="True" />
 <Setter Property="TextOptions.TextFormattingMode" Value="Display" />
 <Setter Property="TextOptions.TextRenderingMode" Value="ClearType" />
 <Setter Property="WindowStyle" Value="None" />
 <Setter Property="FontFamily" Value="{DynamicResource NormalFontFamily}" />
 <Setter Property="Template">
 <Setter.Value>
 <ControlTemplate TargetType="{x:Type wpfsc:WPFMessageBox}">
 <Border Background="{TemplateBinding Background}"
 BorderBrush="{TemplateBinding BorderBrush}"
 BorderThickness="{TemplateBinding BorderThickness}">
 <Grid>
 <Grid.RowDefinitions>
 <RowDefinition/>
 <RowDefinition />
 <RowDefinition/>
 Grid.RowDefinitions>
                            <Grid Grid.Row="0">
                                <DockPanel Margin="20,0,0,0">
                                    <TextBlock x:Name="PART\_Title"
 HorizontalAlignment="Left"
 VerticalAlignment="Center" 
 FontSize="{DynamicResource TitleFontSize}"
 Foreground="{DynamicResource PrimaryTextSolidColorBrush}"/>
                                    <Button Name="PART\_CloseButton" Margin="0,6" 
 ToolTip="Close" HorizontalAlignment="Right"
 IsTabStop="False" Style="{DynamicResource WindowButtonStyle}">
                                        <Path Width="10" Height="10"
 HorizontalAlignment="Center"
 VerticalAlignment="Center"
 Data="{DynamicResource PathMetroWindowClose}"
 Fill="{DynamicResource PrimaryTextSolidColorBrush}"
 Stretch="Fill" />
                                    Button>
                                DockPanel>
                            Grid>
                            <Grid Grid.Row="1" Margin="20">
                                <DockPanel>
                                    <Path x:Name="PART\_Path" Data="{DynamicResource PathInformation}"
 Fill="{DynamicResource PrimaryNormalSolidColorBrush}"
 Height="25" Width="25" Stretch="Fill">Path>
                                    <TextBlock x:Name="PART\_Message" TextWrapping="Wrap" 
 MaxWidth="500" Width="Auto" VerticalAlignment="Center"
 FontSize="{DynamicResource NormalFontSize}"
 Padding="10,0"
 Foreground="{DynamicResource RegularTextSolidColorBrush}"/>
                                DockPanel>
                            Grid>
                            <Grid Grid.Row="2" Margin="140,20,10,10">
                                <StackPanel Orientation="Horizontal" HorizontalAlignment="Right">
                                    <Button x:Name="PART\_ButtonCancel" Content="取消" Visibility="Collapsed"/>
                                    <Button x:Name="PART\_ButtonOK" Style="{DynamicResource PrimaryButton}" 
 Margin="10,0,0,0" Content="确认"/>
                                StackPanel>
                            Grid>
                        Grid>
                    Border>
                ControlTemplate>
            Setter.Value>
        Setter>
    Style>

ResourceDictionary>

三、WPFMessageBox.cs 代码如下；

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Media;
using System.Windows.Shapes;

namespace WPFDevelopers.Minimal.Controls
{
    [TemplatePart(Name = TitleTemplateName, Type = typeof(TextBlock))]
    [TemplatePart(Name = CloseButtonTemplateName, Type = typeof(Button))]
    [TemplatePart(Name = MessageTemplateName, Type = typeof(TextBlock))]
    [TemplatePart(Name = ButtonCancelTemplateName, Type = typeof(Button))]
    [TemplatePart(Name = ButtonCancelTemplateName, Type = typeof(Button))]
    [TemplatePart(Name = PathTemplateName, Type = typeof(Path))]
    public sealed class WPFMessageBox : Window
    {

        private const string TitleTemplateName = "PART\_Title";
        private const string CloseButtonTemplateName = "PART\_CloseButton";
        private const string MessageTemplateName = "PART\_Message";
        private const string ButtonCancelTemplateName = "PART\_ButtonCancel";
        private const string ButtonOKTemplateName = "PART\_ButtonOK";
        private const string PathTemplateName = "PART\_Path";

        private string _messageString;
        private string _titleString;
        private Geometry _geometry;
        private SolidColorBrush _solidColorBrush;
        private Visibility _cancelVisibility = Visibility.Collapsed;
        private Visibility _okVisibility;

        private TextBlock _title;
        private TextBlock _message;
        private Button _closeButton;
        private Button _buttonCancel;
        private Button _buttonOK;
        private Path _path;

        static WPFMessageBox()
        {
            DefaultStyleKeyProperty.OverrideMetadata(typeof(WPFMessageBox), new FrameworkPropertyMetadata(typeof(WPFMessageBox)));
        }
        public override void OnApplyTemplate()
        {
            base.OnApplyTemplate();
            _title = GetTemplateChild(TitleTemplateName) as TextBlock;
            _message = GetTemplateChild(MessageTemplateName) as TextBlock;

            if (_title == null || _message == null)
                throw new InvalidOperationException("the title or message control is null!");

            _title.Text = _titleString;
            _message.Text = _messageString;
            _path = GetTemplateChild(PathTemplateName) as Path;
            if (_path != null)
            {
                _path.Data = _geometry;
                _path.Fill = _solidColorBrush;
            }
            _closeButton = GetTemplateChild(CloseButtonTemplateName) as Button;
            if (_closeButton != null)
                _closeButton.Click += _closeButton_Click;
            _buttonCancel = GetTemplateChild(ButtonCancelTemplateName) as Button;
            if (_buttonCancel != null)
            {
                _buttonCancel.Visibility = _cancelVisibility;
                _buttonCancel.Click += _buttonCancel_Click;
            }
            _buttonOK = GetTemplateChild(ButtonOKTemplateName) as Button;
            if (_buttonOK != null)
            {
                _buttonOK.Visibility = _okVisibility;
                _buttonOK.Click += _buttonOK_Click;
            }
            if (Owner == null)
            {
                BorderThickness = new Thickness(1);
                WindowStartupLocation = WindowStartupLocation.CenterScreen;
            }
        }

        private void _buttonOK_Click(object sender, RoutedEventArgs e)
        {
            Result = MessageBoxResult.OK;
            Close();
        }

        private void _buttonCancel_Click(object sender, RoutedEventArgs e)
        {
            Result = MessageBoxResult.Cancel;
            Close();
        }

        private void _closeButton_Click(object sender, RoutedEventArgs e)
        {
            Close();
        }

        protected override void OnClosed(EventArgs e)
        {
            base.OnClosed(e);
            if (Owner == null)
                return;
            var grid = Owner.Content as Grid;
            UIElement original = VisualTreeHelper.GetChild(grid, 0) as UIElement;
            grid.Children.Remove(original);
            Owner.Content = original;
        }

        public MessageBoxResult Result { get; set; }

        public WPFMessageBox(string message)
        {

            _messageString = message;
        }

        public WPFMessageBox(string message, string caption)
        {
            _titleString = caption;
            _messageString = message;

        }

        public WPFMessageBox(string message, string caption, MessageBoxButton button)
        {
            _titleString = caption;
            _messageString = message; ;
        }

        public WPFMessageBox(string message, string caption, MessageBoxImage image)
        {
            _titleString = caption;
            _messageString = message;
            DisplayImage(image);
        }

        public WPFMessageBox(string message, string caption, MessageBoxButton button, MessageBoxImage image)
        {
            _titleString = caption;
            _messageString = message;
            DisplayImage(image);
            DisplayButtons(button);
        }

        private void DisplayButtons(MessageBoxButton button)
        {
            switch (button)
            {
                case MessageBoxButton.OKCancel:
                case MessageBoxButton.YesNo:
                    _cancelVisibility = Visibility.Visible;
                    _okVisibility = Visibility.Visible;
                    break;
                //case MessageBoxButton.YesNoCancel:
                // break;
                default:
                    _okVisibility = Visibility.Visible;
                    break;
            }
        }
        private void DisplayImage(MessageBoxImage image)
        {
            switch (image)
            {
                case MessageBoxImage.Warning:
                    _geometry = Application.Current.Resources["PathWarning"] as Geometry;
                    _solidColorBrush = Application.Current.Resources["WarningSolidColorBrush"] as SolidColorBrush;
                    break;
                case MessageBoxImage.Error:
                    _geometry = Application.Current.Resources["PathError"] as Geometry;
                    _solidColorBrush = Application.Current.Resources["DangerSolidColorBrush"] as SolidColorBrush;
                    break;
                case MessageBoxImage.Information:
                    _geometry = Application.Current.Resources["PathWarning"] as Geometry;
                    _solidColorBrush = Application.Current.Resources["SuccessSolidColorBrush"] as SolidColorBrush;
                    break;
                case MessageBoxImage.Question:
                    _geometry = Application.Current.Resources["PathQuestion"] as Geometry;
                    _solidColorBrush = Application.Current.Resources["PrimaryNormalSolidColorBrush"] as SolidColorBrush;
                    break;
                default:
                    break;
            }
        }

    }
}

Nuget Install-Package WPFDevelopers.Minimal

其他基础控件

1.Window
2.Button
3.CheckBox
4.ComboBox
5.DataGrid
6.DatePicker
7.Expander
8.GroupBox
9.ListBox
10.ListView
11.Menu
12.PasswordBox
13.TextBox
14.RadioButton
15.ToggleButton
16.Slider
17.TreeView
18.TabControl

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