B站朝夕教育【.NET9.0+WPF实战三类流程化业务逻辑控制】学习记录

播放地址：20241120-.NET9.0+WPF实战三类流程化业务逻辑控制-10_哔哩哔哩_bilibili

Nuget需要安装两个依赖

CommunityToolkit.Mvvm

Microsoft.Xaml.Behaviors.Wpf

第1-2课时主要是理论，略

第3课时，WPF中新增的主题设置

修改MainWindow.xaml文件中的代码为：

 1 <Window x:Class="WpfApp1.Views.MainWindow"
 2         xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
 3         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
 4         xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
 5         xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
 6         xmlns:local="clr-namespace:WpfApp1"
 7         mc:Ignorable="d"
 8         Title="MainWindow" Height="450" Width="800" Background="White">
 9     <ScrollViewer>
10     <Grid>
11         <TabControl>
12             <TabItem Header="AAAA">
13                 <StackPanel>
14                     <Button Content="Button" />
15                     <Label Content="Label" />
16                     <CheckBox Content="CheckBox" />
17                     <RadioButton Content="RadioButton" />
18                     <ToggleButton Content="ToggleButton" />
19                     <ComboBox>
20                         <ComboBoxItem Content="AAA" />
21                         <ComboBoxItem Content="BBB" />
22                         <ComboBoxItem Content="CCC" />
23                         <ComboBoxItem Content="DDD" />
24                     </ComboBox>
25                     <ListBox>
26                         <ListBoxItem Content="AAAA" />
27                         <ListBoxItem Content="AAAA" />
28                         <ListBoxItem Content="AAAA" />
29                         <ListBoxItem Content="AAAA" />
30                         <ListBoxItem Content="AAAA" />
31                     </ListBox>
32                     <Calendar />
33                     <DatePicker />
34                 </StackPanel>
35             </TabItem>
36             <TabItem Header="BBB">
37 
38             </TabItem>
39             <TabItem Header="CCC">
40 
41             </TabItem>
42         </TabControl>
43 
44         </Grid>
45     </ScrollViewer>
46 </Window>

演示主题使用的代码

在App.xaml文件中修改代码

增加 ResourceDictionary节点，及内容，内部包含多种不同风格，可以自己尝试切换

 1 <Application x:Class="WpfApp1.App"
 2              xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
 3              xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
 4              xmlns:local="clr-namespace:WpfApp1"
 5              StartupUri="Views/MainView.xaml">
 6     <Application.Resources>
 7         <ResourceDictionary>
 8             <ResourceDictionary.MergedDictionaries>
 9                 <ResourceDictionary Source="pack://application:,,,/PresentationFramework.Fluent;component/Themes/Fluent.xaml" />
10                 <!--<ResourceDictionary Source="pack://application:,,,/PresentationFramework.Aero;component/Themes/Aero.NormalColor.xaml" />-->
11                 <!--<ResourceDictionary Source="pack://application:,,,/PresentationFramework.AeroLite;component/Themes/AeroLite.NormalColor.xaml" />-->
12                 <!--<ResourceDictionary Source="pack://application:,,,/PresentationFramework.Classic;component/Themes/Classic.xaml" />-->
13                 <!--<ResourceDictionary Source="pack://application:,,,/PresentationFramework.Luna;component/Themes/Luna.HomeStead.xaml" />-->
14                 <!--<ResourceDictionary Source="pack://application:,,,/PresentationFramework.Luna;component/Themes/Luna.Metallic.xaml" />-->
15                 <!--<ResourceDictionary Source="pack://application:,,,/PresentationFramework.Luna;component/Themes/Luna.NormalColor.xaml" />-->
16                 <!--<ResourceDictionary Source="pack://application:,,,/PresentationFramework.Royale;component/Themes/Royale.NormalColor.xaml" />-->
17             </ResourceDictionary.MergedDictionaries>
18         </ResourceDictionary>
19     </Application.Resources>
20 </Application>

WPF切换主题

第4-5课时创建MainView.xaml窗口演示如何使用传统方法实现拖拽控件

在窗口Window节点中设置属性WindowStartupLocation="CenterScreen"，让窗口启动时在屏幕中间位置
注意如果你的VS主题设置的是深色需要再再Window节点上增加Background="White"或者其他颜色，否则启动后背景黑色应用了上面的主题后很多效果看不到

xaml文件代码

 1 <Window x:Class="WpfApp1.MainView"
 2         xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
 3         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
 4         xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
 5         xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
 6         xmlns:local="clr-namespace:WpfApp1"
 7         mc:Ignorable="d"
 8         WindowStartupLocation="CenterScreen"
 9         Background="White"
10         Title="MainView" Height="650" Width="1300">
11     <Grid>
12         <Grid.ColumnDefinitions>
13             <ColumnDefinition Width="200" />
14             <ColumnDefinition Width="300" />
15             <ColumnDefinition />           
16         </Grid.ColumnDefinitions>
17         <ListView>
18             <ListViewItem Content="AAA" PreviewMouseLeftButtonDown="ListViewItem_MouseLeftButtonDown"></ListViewItem>
19             <ListViewItem Content="BBB" PreviewMouseLeftButtonDown="ListViewItem_MouseLeftButtonDown"></ListViewItem>
20             <ListViewItem Content="CCC" PreviewMouseLeftButtonDown="ListViewItem_MouseLeftButtonDown"></ListViewItem>
21             <ListViewItem Content="DDD" PreviewMouseLeftButtonDown="ListViewItem_MouseLeftButtonDown"></ListViewItem>
22         </ListView>
23         <ListBox Grid.Column="1" Drop="ListBox_Drop" AllowDrop="True"></ListBox>
24     </Grid>
25 </Window>

MainView.xaml.cs文件里新增代码

 1         private void ListViewItem_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
 2         {
 3             DragDrop.DoDragDrop((DependencyObject)sender, (sender as ListViewItem).Content, DragDropEffects.Copy);
 4         }
 5 
 6         private void ListBox_Drop(object sender, DragEventArgs e)
 7         {
 8             string value = e.Data.GetData(typeof(string)).ToString();
 9             (sender as ListBox).Items.Add(new ListBoxItem() { Content=value});
10         }