时间：2021年09月24日 | 作者 : aaronyang | 分类 : WPF | 浏览: 104次 | 评论 0 人
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第5天CM.zip
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新建 ExecuteViewModel
using System.Threading.Tasks;
using Caliburn.Micro;
using cm1.Views;
namespace cm1.ViewModels
{
public class ExecuteViewModel : Screen
{
public void StartSafeBackgroundWork()
{
Task.Factory.StartNew(SafeBackgroundWork);
}
public void StartUnSafeBackgroundWork()
{
Task.Factory.StartNew(UnsafeBackgroundWork);
}
private void SafeBackgroundWork()
{
Execute.OnUIThreadAsync(UpdateView);
}
private void UnsafeBackgroundWork()
{
UpdateView();
}
private Task UpdateView()
{
var view = (ExecuteView)GetView();
view.UpdateView();
return Task.CompletedTask;
}
}
}添加ExecuteView.xaml和ExecuteView.xaml.cs
添加2个按钮
<Page x:Class="cm1.Views.ExecuteView" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" mc:Ignorable="d" d:DesignHeight="300" d:DesignWidth="300" Title="ExecuteView"> <Grid> <StackPanel Margin="40,20"> <Button x:Name="StartUnSafeBackgroundWork" Content="非安全更新"/> <Button x:Name="StartSafeBackgroundWork" Content="使用CM的Execute.OnUIThread"/> <TextBlock x:Name="Output"/> </StackPanel> </Grid> </Page>
后台使用 name点属性方式更新ui
using System;
namespace cm1.Views
{
public partial class ExecuteView
{
public ExecuteView()
{
InitializeComponent();
}
public void UpdateView()
{
Output.Text = "View Updated";
}
}
}打开Bootstrapper.cs 修改
protected override void Configure()
{
container = new SimpleContainer();
container.Instance(container);
container
.Singleton<IWindowManager, WindowManager>()
.Singleton<IEventAggregator, EventAggregator>();
container
.PerRequest<ShellViewModel>()
.PerRequest<MenuViewModel>()
.PerRequest<BindingsViewModel>()
.PerRequest<ActionsViewModel>()
.PerRequest<CoroutineViewModel>()
.PerRequest<ExecuteViewModel>();
}打开MenuViewModel.cs添加菜单
Features = new BindableCollection<FeatureViewModel>
{
new FeatureViewModel("Binding Conventions", "Binding view model properties to your view.", typeof(BindingsViewModel)),
new FeatureViewModel("Action Conventions", "Wiring view events to view model methods.", typeof(ActionsViewModel)),
new FeatureViewModel("Coroutines", "Using IEnumerable<IResult>", typeof(CoroutineViewModel)),
new FeatureViewModel("Execute", "Using Execute to execute code on the UI thread.", typeof(ExecuteViewModel)),
};运行后效果：
点击非安全
点击使用CM的
我尝试了下下面的方式，不使用xaml.cs,移除Execute.xaml.cs
using System.Threading.Tasks;
using Caliburn.Micro;
using cm1.Views;
namespace cm1.ViewModels
{
public class ExecuteViewModel : Screen
{
private string _Output;
/// <summary>
/// 输出
/// </summary>
public string Output
{
get { return _Output; }
set { Set(ref _Output, value); }
}
public void StartSafeBackgroundWork()
{
Task.Factory.StartNew(SafeBackgroundWork);
}
public void StartUnSafeBackgroundWork()
{
Task.Factory.StartNew(UnsafeBackgroundWork);
}
private void SafeBackgroundWork()
{
Execute.OnUIThreadAsync(UpdateView);
}
private void UnsafeBackgroundWork()
{
UpdateView();
}
private Task UpdateView()
{
Output = "界面更新";
return Task.CompletedTask;
}
//private Task UpdateView()
//{
// var view = (ExecuteView)GetView();
// view.UpdateView();
// return Task.CompletedTask;
//}
}
}发现 安全和不安全都可以
本文由 安徽 合肥 杨洋 1991年的 英文名AY ===来自网站 www.ayjs.net 编写
本文由 安徽 合肥 杨洋 1991年的 英文名AY ===来自网站 www.ayjs.net 编写
本文代码下载:第5天CM.zip
| net framework 类库 | net5 中的替代类库 |
Microsoft.Expression.Interactions System.Windows.Interactivity | Microsoft.Xaml.Behaviors.Wpf |
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Window
<Window x:Class="Features.CrossPlatform.Views.ShellView" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:cal="clr-namespace:Caliburn.Micro;assembly=Caliburn.Micro.Platform" mc:Ignorable="d" Title="ShellView" Height="450" Width="800"> <Grid> </Grid> </Window>
Page
<Page x:Class="Features.CrossPlatform.Views.MenuView" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" mc:Ignorable="d" d:DesignHeight="300" d:DesignWidth="300" Title=""> <Grid> </Grid> </Page>
UserControl
<UserControl x:Class="cm1.Views.FeatureView" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:cal="clr-namespace:Caliburn.Micro;assembly=Caliburn.Micro.Platform" mc:Ignorable="d" d:DesignHeight="300" d:DesignWidth="300"> <Grid> </Grid> </UserControl>
合肥科大智能常年招聘C# .NET CORE,vue前端,JAVA开发，有想换工作的私聊我和AY交流
抖音号:wpfui 工作是wpf,不接活,目前主要折腾maui
AYUI8社区版Github地址:前往获取
杨洋（AaronYang简称AY,安徽六安人）目前是个人,还没公司和AY交流
高中学历，2010年开始web开发,2015年1月17日开始,兴趣学习研究WPF
声明:AYUI7个人与商用免费，源码可购买。部分DEMO不免费.AY主要靠卖技术服务挣钱
不是从我处购买的ayui7源码，我不提供任何技术服务，如果你举报从哪里买的，我可以帮你转正为我的客户，并送demo
查看捐赠AYUI7.X MVC教程 更新如下：
第一课 第二课 程序加密教程vs2015 企业版密钥HM6NR-QXX7C-DFW2Y-8B82K-WTYJV
vs2017 企业版密钥NJVYC-BMHX2-G77MM-4XJMR-6Q8QF
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