WPF Prism MVVM 中弹出新窗体. 放入用户控件

WPF Prism MVVM 中弹出新窗体. 放入用户控件., 传入一些数据,并且可以返回一些数据.

对于一个WPF MVVM 的萌新来说. 必然会遇到一个弹出新窗口的问题.

今天,就和大家分享一下,这个问题的解决方法.

.

一. 准备

.dll
.CS 文件 (StylePopupWindowAction.cs)
.xaml 文件(BorderlessWindow.xaml)

WPF Prism MVVM 中弹出新窗体. 放入用户控件

这里是实例化一个窗口,然后加载窗口的样式. ( StylePopupWindowAction.cs)

using System;

using System.Windows;

using System.Windows.Input;

using Prism.Interactivity;

using Prism.Interactivity.InteractionRequest;

namespace HXDJSsYSTEM.WindowAction

{

    public class StylePopupWindowAction : PopupWindowAction

    {

       private Window _wrapperWindow;

        /// <summary>

        /// 通过重写PopupWindowAction中的GetWindow方法，设置Window的Style属性。

        /// 否则打开的只能是默认窗体，无法设置样式。

        /// </summary>

        /// <param name="notification"></param>

        /// <returns></returns>

        protected override Window GetWindow(INotification notification)

        {

            if (this.WindowContent != null)

            {

                //初始化窗口

                _wrapperWindow = new Window

                {

                    //数据上下文

                    DataContext = notification,

                    Title = notification.Title,

                    //宽高自适应 内容

                    SizeToContent = SizeToContent.WidthAndHeight,

                };

                _wrapperWindow.KeyDown += WrapperWindow_KeyDown;

                ResourceDictionary langRd = null;

                try

                {

                    //读取资源文件(样式)

                    langRd = Application.LoadComponent(new Uri("/WindowAction/BorderlessWindow.xaml", UriKind.RelativeOrAbsolute)) as ResourceDictionary;

                }

                catch

                {

                }

                //判断资源是否 读取成功.读取成功则不为null

                if (langRd != null)

                {

                    //判断是否已经有资源. 如果有 就 clear;

                    if (_wrapperWindow.Resources.MergedDictionaries.Count > 0)

                    {

                        _wrapperWindow.Resources.MergedDictionaries.Clear();

                    }

                    //将资源加入到window中

                    _wrapperWindow.Resources.MergedDictionaries.Add(langRd);

                }

                //将传入的 notification  放入 window

                PrepareContentForWindow(notification, _wrapperWindow);

            }

            else

            {

                //如果WindowContent 等于null  则 生成默认窗口

                _wrapperWindow = this.CreateDefaultWindow(notification);

            }

            return _wrapperWindow;

        }

        /// <summary>

        /// 键盘按下 事件

        /// </summary>

        /// <param name="sender"></param>

        /// <param name="e"></param>

        private void WrapperWindow_KeyDown(object sender, System.Windows.Input.KeyEventArgs e)

        {

            //按下ESC 关闭窗口

            if (e.Key == Key.Escape)

            {

              _wrapperWindow.Close();

            }

        }

    }

}

这里是上面代码要加载的样式 ( BorderlessWindow.xaml )

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

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

    <Style x:Name="BorderlessWindowStyle"

           TargetType="{x:Type Window}">

        <Setter Property="FontFamily"

                Value="{DynamicResource DefaultFontFamily}" />

        <Setter Property="FontSize"

                Value="{DynamicResource DefaultFontSize}" />

        <Setter Property="Foreground"

                Value="{DynamicResource WindowText}" />

        <Setter Property="BorderBrush"

                Value="{DynamicResource WindowBorder}" />       

        <Setter Property="ResizeMode"

                Value="CanResizeWithGrip" />

        <Setter Property="UseLayoutRounding"

                Value="True" />

        <Setter Property="TextOptions.TextFormattingMode"

                Value="Display" />

        <Setter Property="Template">

            <Setter.Value>

                <ControlTemplate TargetType="{x:Type Window}">

                    <Border x:Name="WindowBorder"

                            Margin="{Binding Source={x:Static SystemParameters.WindowNonClientFrameThickness}}">

                        <Border.Background>

                            <SolidColorBrush x:Name="WindowBorderBackground"

                                             Color="{DynamicResource WindowBackgroundColor}" />

                        </Border.Background>

                        <Border.Resources>

                            <Storyboard x:Key="BackgroundAnimation">

                                <ColorAnimation Storyboard.TargetName="WindowBorderBackground"

                                                Storyboard.TargetProperty="Color"

                                                To="{DynamicResource WindowBackgroundColor}"

                                                Duration="0:0:.6" />

                            </Storyboard>

                        </Border.Resources>

                        <Border BorderBrush="{TemplateBinding BorderBrush}"

                                BorderThickness="1">

                            <AdornerDecorator>

                                <Grid x:Name="LayoutRoot">

                                    <Grid.RowDefinitions>

                                        <RowDefinition Height="36" />

                                        <RowDefinition Height="Auto" />

                                        <RowDefinition Height="*" />

                                    </Grid.RowDefinitions>

                                    <!-- title bar -->

                                    <Grid>

                                        <!-- title -->

                                        <TextBlock Text="{TemplateBinding Title}"

                                                   Margin="8,0"

                                                   VerticalAlignment="Center"

                                                   Visibility="Visible" />

                                        <!-- window system buttons-->

                                        <StackPanel VerticalAlignment="Top"

                                                    HorizontalAlignment="Right"

                                                    WindowChrome.IsHitTestVisibleInChrome="True">

                                            <Button Command="{Binding Source={x:Static SystemCommands.CloseWindowCommand}}"

                                                    ToolTip="关闭">

                                                <Button.Content>

                                                    <Grid Width="13"

                                                          Height="12"

                                                          RenderTransform="1,0,0,1,0,1">

                                                        <Path Data="M0,0 L8,7 M8,0 L0,7 Z"

                                                              Width="8"

                                                              Height="7"

                                                              VerticalAlignment="Center"

                                                              HorizontalAlignment="Center"

                                                              Stroke="{Binding Foreground, RelativeSource={RelativeSource Mode=FindAncestor, AncestorType=Button}}"

                                                              StrokeThickness="1.5" />

                                                    </Grid>

                                                </Button.Content>

                                            </Button>

                                        </StackPanel>

                                    </Grid>

                                    <Grid Grid.Row="1"

                                          Height="30">

                                        <Grid.ColumnDefinitions>

                                            <ColumnDefinition Width="42" />

                                            <ColumnDefinition Width="*" />

                                        </Grid.ColumnDefinitions>

                                    </Grid>

                                    <Grid Grid.Row="2">

                                        <ContentPresenter />

                                    </Grid>

                                </Grid>

                            </AdornerDecorator>

                        </Border>

                    </Border>

                    <ControlTemplate.Triggers>

                        <Trigger Property="IsActive"

                                 Value="True">

                            <Setter Property="BorderBrush"

                                    Value="{DynamicResource WindowBorderActive}" />

                        </Trigger>

                    </ControlTemplate.Triggers>

                </ControlTemplate>

            </Setter.Value>

        </Setter>

        <Setter Property="WindowChrome.WindowChrome">

            <Setter.Value>

                <WindowChrome CornerRadius="0"

                              GlassFrameThickness="1"

                              UseAeroCaptionButtons="False"

                              NonClientFrameEdges="None" />

            </Setter.Value>

        </Setter>

    </Style>

    <Color x:Key="WindowBackgroundColor">#ffffff</Color>

    <SolidColorBrush x:Key="ButtonBackground"

                     Color="#ffffff" />

    <SolidColorBrush x:Key="ButtonBackgroundHover"

                     Color="#dddddd" />

    <SolidColorBrush x:Key="ButtonBackgroundPressed"

                     Color="BlueViolet" />

    <SolidColorBrush x:Key="ButtonBorder"

                     Color="#cccccc" />

    <SolidColorBrush x:Key="ButtonBorderHover"

                     Color="#cccccc" />

    <SolidColorBrush x:Key="ButtonBorderPressed"

                     Color="BlueViolet" />

    <SolidColorBrush x:Key="ButtonText"

                     Color="#333333" />

    <SolidColorBrush x:Key="ButtonTextHover"

                     Color="#333333" />

    <SolidColorBrush x:Key="ButtonTextPressed"

                     Color="#ffffff" />

    <SolidColorBrush x:Key="ButtonTextDisabled"

                     Color="#a1a1a1" />

    <SolidColorBrush x:Key="DataGridBackground"

                     Color="Transparent" />

    <SolidColorBrush x:Key="DataGridForeground"

                     Color="#333333" />

    <SolidColorBrush x:Key="DataGridCellBackground"

                     Color="Transparent" />

    <SolidColorBrush x:Key="DataGridCellBackgroundHover"

                     Color="#dddddd" />

    <SolidColorBrush x:Key="DataGridCellBackgroundSelected"

                     Color="BlueViolet" />

    <SolidColorBrush x:Key="DataGridCellForeground"

                     Color="#333333" />

    <SolidColorBrush x:Key="DataGridCellForegroundHover"

                     Color="#333333" />

    <SolidColorBrush x:Key="DataGridCellForegroundSelected"

                     Color="#ffffff" />

    <SolidColorBrush x:Key="DataGridHeaderBackground"

                     Color="Transparent" />

    <SolidColorBrush x:Key="DataGridHeaderBackgroundHover"

                     Color="#dddddd" />

    <SolidColorBrush x:Key="DataGridHeaderBackgroundPressed"

                     Color="BlueViolet" />

    <SolidColorBrush x:Key="DataGridHeaderBackgroundSelected"

                     Color="BlueViolet" />

    <SolidColorBrush x:Key="DataGridHeaderForeground"

                     Color="#333333" />

    <SolidColorBrush x:Key="DataGridHeaderForegroundHover"

                     Color="#333333" />

    <SolidColorBrush x:Key="DataGridHeaderForegroundPressed"

                     Color="#ffffff" />

    <SolidColorBrush x:Key="DataGridHeaderForegroundSelected"

                     Color="#ffffff" />

    <SolidColorBrush x:Key="DataGridGridLines"

                     Color="#cccccc" />

    <SolidColorBrush x:Key="DataGridDropSeparator"

                     Color="BlueViolet" />

    <SolidColorBrush x:Key="Hyperlink"

                     Color="BlueViolet" />

    <SolidColorBrush x:Key="HyperlinkHover"

                     Color="BlueViolet" />

    <SolidColorBrush x:Key="HyperlinkDisabled"

                     Color="#919191" />

    <SolidColorBrush x:Key="InputBackground"

                     Color="#ffffff" />

    <SolidColorBrush x:Key="InputBackgroundHover"

                     Color="#ffffff" />

    <SolidColorBrush x:Key="InputBorder"

                     Color="#cccccc" />

    <SolidColorBrush x:Key="InputBorderHover"

                     Color="#cccccc" />

    <SolidColorBrush x:Key="InputText"

                     Color="#333333" />

    <SolidColorBrush x:Key="InputTextHover"

                     Color="#333333" />

    <SolidColorBrush x:Key="InputTextDisabled"

                     Color="#919191" />

    <SolidColorBrush x:Key="ItemBackgroundHover"

                     Color="#dddddd" />

    <SolidColorBrush x:Key="ItemBackgroundSelected"

                     Color="BlueViolet" />

    <SolidColorBrush x:Key="ItemBorder"

                     Color="#cccccc" />

    <SolidColorBrush x:Key="ItemText"

                     Color="#333333" />

    <SolidColorBrush x:Key="ItemTextSelected"

                     Color="#ffffff" />

    <SolidColorBrush x:Key="ItemTextHover"

                     Color="#333333" />

    <SolidColorBrush x:Key="ItemTextDisabled"

                     Color="#919191" />

    <SolidColorBrush x:Key="LinkButtonText"

                     Color="#717171" />

    <SolidColorBrush x:Key="LinkButtonTextHover"

                     Color="#333333" />

    <SolidColorBrush x:Key="LinkButtonTextPressed"

                     Color="#919191" />

    <SolidColorBrush x:Key="LinkButtonTextDisabled"

                     Color="#919191" />

    <SolidColorBrush x:Key="MenuText"

                     Color="#66000000" />

    <SolidColorBrush x:Key="MenuTextHover"

                     Color="#bb000000" />

    <SolidColorBrush x:Key="MenuTextSelected"

                     Color="#333333" />

    <SolidColorBrush x:Key="ModernButtonBorder"

                     Color="#919191" />

    <SolidColorBrush x:Key="ModernButtonBorderHover"

                     Color="#333333" />

    <SolidColorBrush x:Key="ModernButtonBorderPressed"

                     Color="#333333" />

    <SolidColorBrush x:Key="ModernButtonBorderDisabled"

                     Color="#919191" />

    <SolidColorBrush x:Key="ModernButtonIconBackgroundPressed"

                     Color="BlueViolet" />

    <SolidColorBrush x:Key="ModernButtonIconForegroundPressed"

                     Color="#ffffff" />

    <SolidColorBrush x:Key="ModernButtonText"

                     Color="#333333" />

    <SolidColorBrush x:Key="ModernButtonTextHover"

                     Color="#333333" />

    <SolidColorBrush x:Key="ModernButtonTextPressed"

                     Color="#333333" />

    <SolidColorBrush x:Key="ModernButtonTextDisabled"

                     Color="#a1a1a1" />

    <SolidColorBrush x:Key="PopupBackground"

                     Color="#ffffff" />

    <SolidColorBrush x:Key="ProgressBackground"

                     Color="#dddddd" />

    <SolidColorBrush x:Key="ScrollBarBackground"

                     Color="Transparent" />

    <SolidColorBrush x:Key="ScrollBarThumbBackground"

                     Color="Transparent" />

    <SolidColorBrush x:Key="ScrollBarThumbBackgroundDragging"

                     Color="#cccccc" />

    <SolidColorBrush x:Key="ScrollBarThumbBackgroundHover"

                     Color="#dddddd" />

    <SolidColorBrush x:Key="ScrollBarThumbBorder"

                     Color="#cccccc" />

    <SolidColorBrush x:Key="ScrollBarThumbForeground"

                     Color="Transparent" />

    <SolidColorBrush x:Key="ScrollBarThumbForegroundDragging"

                     Color="Transparent" />

    <SolidColorBrush x:Key="ScrollBarThumbForegroundHover"

                     Color="Transparent" />

    <SolidColorBrush x:Key="SeparatorBackground"

                     Color="#cccccc" />

    <SolidColorBrush x:Key="SliderSelectionBackground"

                     Color="BlueViolet" />

    <SolidColorBrush x:Key="SliderSelectionBorder"

                     Color="BlueViolet" />

    <SolidColorBrush x:Key="SliderThumbBackground"

                     Color="#ffffff" />

    <SolidColorBrush x:Key="SliderThumbBackgroundDragging"

                     Color="BlueViolet" />

    <SolidColorBrush x:Key="SliderThumbBackgroundHover"

                     Color="#dddddd" />

    <SolidColorBrush x:Key="SliderThumbBackgroundDisabled"

                     Color="#cccccc" />

    <SolidColorBrush x:Key="SliderThumbBorder"

                     Color="#cccccc" />

    <SolidColorBrush x:Key="SliderThumbBorderDragging"

                     Color="BlueViolet" />

    <SolidColorBrush x:Key="SliderThumbBorderHover"

                     Color="#cccccc" />

    <SolidColorBrush x:Key="SliderThumbBorderDisabled"

                     Color="#cccccc" />

    <SolidColorBrush x:Key="SliderTrackBackground"

                     Color="#cccccc" />

    <SolidColorBrush x:Key="SliderTrackBorder"

                     Color="#cccccc" />

    <SolidColorBrush x:Key="SliderTick"

                     Color="#919191" />

    <SolidColorBrush x:Key="SliderTickDisabled"

                     Color="#cccccc" />

    <SolidColorBrush x:Key="SubMenuText"

                     Color="#99000000" />

    <SolidColorBrush x:Key="SubMenuTextHover"

                     Color="#66000000" />

    <SolidColorBrush x:Key="SubMenuTextSelected"

                     Color="#333333" />

    <SolidColorBrush x:Key="WindowBackground"

                     Color="{StaticResource WindowBackgroundColor}" />

    <SolidColorBrush x:Key="WindowBorder"

                     Color="BlueViolet"

                     Opacity=".5" />

    <SolidColorBrush x:Key="WindowBorderActive"

                     Color="BlueViolet" />

    <LinearGradientBrush x:Key="WindowHeaderGradient"

                         StartPoint="0, 0"

                         EndPoint="0, 1"

                         Opacity=".1">

        <GradientStop Offset="0"

                      Color="BlueViolet" />

        <GradientStop Offset=".3"

                      Color="BlueViolet" />

        <GradientStop Offset="1"

                      Color="Transparent" />

    </LinearGradientBrush>

    <SolidColorBrush x:Key="WindowText"

                     Color="#333333" />

    <SolidColorBrush x:Key="WindowTextReadOnly"

                     Color="#919191" />

    <Rectangle x:Key="WindowBackgroundContent"

               x:Shared="false"

               Height="96"

               Fill="{StaticResource WindowHeaderGradient}"

               VerticalAlignment="Top" />

</ResourceDictionary>

二. 我们该怎么用它.

1.窗口的XAML

这里我们需要用到Triggers

WPF Prism MVVM 中弹出新窗体. 放入用户控件

2.窗口的 ViewModel

在这里我们需要引用命名空间 ,大家没有这个DLL的可以在NuGet上搜索.安装就可以了.

WPF Prism MVVM 中弹出新窗体. 放入用户控件

3.这里是ViewModel的具体方法

定义
在构造参数中实例化
传入Content和Title

WPF Prism MVVM 中弹出新窗体. 放入用户控件

4.要放入Window 中的用户控件的ViewModel

WPF Prism MVVM 中弹出新窗体. 放入用户控件

5.用户控件的ViewModel 中的具体操作

放入返回值
关闭窗口

WPF Prism MVVM 中弹出新窗体. 放入用户控件

6.返回值的处理

WPF Prism MVVM 中弹出新窗体. 放入用户控件

注意:

用户控件在触发器那里指定的时候,要注意防止出现死循环. 会报错…
这只是其中一种解决方案… 可能不是最好的.

这些就是这个弹出窗体的具体操作了. 也比较简单. 看不懂的多看两遍. 然后动手操作一下.

WPF Prism MVVM 中弹出新窗体. 放入用户控件