介绍
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；
实现代码
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；
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
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