C#与WPF使用mvvm简单案例点击按钮触发弹窗

创建WPF工程文件，以mvvm模式更改页面名称，及创建model类

注意页面的命名以View结尾，模型类以ViewModel结尾

<Window x:Class=”MVVMDemo.Views.MainWindowView”
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:local=”clr-namespace:MVVMDemo”
mc:Ignorable=”d”
Title=”MainWindow” Height=”450″ Width=”800″>
<Grid>
<Border>
<Button Content=”测试按钮”
Command=”{Binding TestCommand}”
CommandParameter=”{Binding RelativeSource={RelativeSource AncestorType=Window}}”
Width=”90″ Height=”50″ FontSize=”20″ />
</Border>
</Grid>
</Window>

页面后台代码

using MVVMDemo.ViewModels;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;

namespace MVVMDemo.Views
{
/// <summary>
/// MainWindow.xaml 的交互逻辑
/// </summary>
public partial class MainWindowView : Window
{
public MainWindowView()
{
InitializeComponent();

//绑定数据源
DataContext = new MainWindowViewModel();
}
}
}

MainWindowViewModel代码

using Prism.Commands;
using Prism.Mvvm;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Input;

namespace MVVMDemo.ViewModels
{
public class MainWindowViewModel : BindableBase
{
//测试按钮命令
public ICommand TestCommand
{
get => new DelegateCommand(Test);
}

private void Test()
{
MessageBox.Show(“有效触发”, “测试mvvm”);

}
}
}