在WPF应用中集成Angular时解决CefSharp拖放功能失效问题

using CefSharp;
using CefSharp.Handler;
using CefSharp.Wpf;
using System.IO;
using System.Windows.Controls; // 假设UcGpsWeb是一个UserControl

public partial class UcGpsWeb : UserControl
{
    public ChromiumWebBrowser WebBrowserInstance { get; set; }

    public UcGpsWeb()
    {
        InitializeComponent(); // 初始化WPF组件

        // CefSettings配置
        CefSettings settings = new CefSettings();
        // 禁用不安全的私有网络请求，通常用于开发环境
        settings.CefCommandLineArgs["disable-features"] = "BlockInsecurePrivateNetworkRequests";
        // 禁用Web安全策略，允许跨域访问本地资源，开发时常用
        settings.CefCommandLineArgs.Add("disable-web-security", "disable-web-security");

        // 注册自定义Scheme，用于加载本地文件
        settings.RegisterScheme(new CefCustomScheme
        {
            SchemeName = "localfolder",
            DomainName = "cefsharp",
            SchemeHandlerFactory = new FolderSchemeHandlerFactory(
                rootFolder: @".\Assets\HTML\GPS\", // Angular应用构建输出的根目录
                hostName: "cefsharp",
                defaultPage: "index.html" // 默认加载的页面
            )
        });

        // 初始化CefSharp全局环境
        Cef.Initialize(settings);

        // 创建ChromiumWebBrowser实例并添加到WPF布局中
        WebBrowserInstance = new ChromiumWebBrowser();
        this.Content = WebBrowserInstance; // 假设此UserControl包含浏览器实例

        // 页面加载事件处理
        Loaded += (s, e) =>
        {
            // 可选：显示开发者工具，便于调试
            // WebBrowserInstance.ShowDevTools();
            // 设置浏览器地址为自定义Scheme指向的本地Angular应用
            WebBrowserInstance.Address = "localfolder://cefsharp/";
        };
    }
}

using CefSharp;
using CefSharp.Handler;
using CefSharp.Wpf;
using System.IO;
using System.Windows.Controls;

public partial class UcGpsWeb : UserControl
{
    public ChromiumWebBrowser WebBrowserInstance { get; set; }

    public UcGpsWeb()
    {
        InitializeComponent();

        CefSettings settings = new CefSettings();
        settings.CefCommandLineArgs["disable-features"] = "BlockInsecurePrivateNetworkRequests";
        settings.CefCommandLineArgs.Add("disable-web-security", "disable-web-security");

        settings.RegisterScheme(new CefCustomScheme
        {
            SchemeName = "localfolder",
            DomainName = "cefsharp",
            SchemeHandlerFactory = new FolderSchemeHandlerFactory(
                rootFolder: @".\Assets\HTML\GPS\",
                hostName: "cefsharp",
                defaultPage: "index.html"
            )
        });

        Cef.Initialize(settings);

        WebBrowserInstance = new ChromiumWebBrowser();
        this.Content = WebBrowserInstance;

        Loaded += (s, e) =>
        {
            // 关键修复：启用CefSharp控件的拖放功能
            WebBrowserInstance.AllowDrop = true; 

            // WebBrowserInstance.ShowDevTools(); // 调试工具
            WebBrowserInstance.Address = "localfolder://cefsharp/";
        };
    }
}