添加项目文件。

Sai.RvKits Setup/Dialogs/LicenseAgreementDialog.xaml.cs

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+using System;
+using System.Diagnostics;
+using System.IO;
+using System.Text;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Media.Imaging;
+
+using Caliburn.Micro;
+
+using WixSharp;
+using WixSharp.UI.Forms;
+using WixSharp.UI.WPF;
+
+using IO = System.IO;
+
+namespace Sai.RvKits_Setup
+{
+    /// <summary>
+    /// The standard LicenceDialog.
+    /// <para>Follows the design of the canonical Caliburn.Micro View (MVVM).</para>
+    /// <para>See https://caliburnmicro.com/documentation/cheat-sheet</para>
+    /// </summary>
+    /// <seealso cref="WixSharp.UI.WPF.WpfDialog" />
+    /// <seealso cref="System.Windows.Markup.IComponentConnector" />
+    /// <seealso cref="WixSharp.IWpfDialog" />
+    public partial class LicenceDialog : WpfDialog, IWpfDialog
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="LicenceDialog"/> class.
+        /// </summary>
+        public LicenceDialog()
+        {
+            InitializeComponent();
+        }
+
+        /// <summary>
+        /// This method is invoked by WixSHarp runtime when the custom dialog content is internally fully initialized.
+        /// This is a convenient place to do further initialization activities (e.g. localization).
+        /// </summary>
+        public void Init()
+        {
+            ViewModelBinder.Bind(
+                new LicenseDialogModel
+                {
+                    ShowRtfContent = x => this.LicenceText.SetRtf(x),
+                    Host = ManagedFormHost,
+                },
+                this,
+                null);
+        }
+    }
+
+    static partial class Extension
+    {
+        public static void SetRtf(this RichTextBox rtb, string document)
+        {
+            var documentBytes = Encoding.UTF8.GetBytes(document);
+            using (var reader = new MemoryStream(documentBytes))
+            {
+                reader.Position = 0;
+                rtb.SelectAll();
+                rtb.Selection.Load(reader, DataFormats.Rtf);
+            }
+        }
+    }
+
+    /// <summary>
+    /// ViewModel for standard LicenceDialog.
+    /// <para>Follows the design of the canonical Caliburn.Micro ViewModel (MVVM).</para>
+    /// <para>See https://caliburnmicro.com/documentation/cheat-sheet</para>
+    /// </summary>
+    /// <seealso cref="Caliburn.Micro.Screen" />
+    internal class LicenseDialogModel : Caliburn.Micro.Screen
+    {
+        ManagedForm host;
+        ISession session => Host?.Runtime.Session;
+        IManagedUIShell shell => Host?.Shell;
+
+        public Action<string> ShowRtfContent;
+
+        public ManagedForm Host
+        {
+            get => host;
+            set
+            {
+                host = value;
+
+                ShowRtfContent?.Invoke(LicenceText);
+                NotifyOfPropertyChange(() => Banner);
+                NotifyOfPropertyChange(() => LicenseAcceptedChecked);
+                NotifyOfPropertyChange(() => CanGoNext);
+            }
+        }
+
+        public string LicenceText => session?.GetResourceString("WixSharp_LicenceFile");
+
+        public BitmapImage Banner => session?.GetResourceBitmap("WixSharpUI_Bmp_Banner").ToImageSource();
+
+        public bool LicenseAcceptedChecked
+        {
+            get => session?["LastLicenceAcceptedChecked"] == "True";
+            set
+            {
+                if (Host != null)
+                    session["LastLicenceAcceptedChecked"] = value.ToString();
+
+                NotifyOfPropertyChange(() => LicenseAcceptedChecked);
+                NotifyOfPropertyChange(() => CanGoNext);
+            }
+        }
+
+        public bool CanGoNext
+            => LicenseAcceptedChecked;
+
+        public void GoPrev()
+            => shell?.GoPrev();
+
+        public void GoNext()
+            => shell?.GoNext();
+
+        public void Cancel()
+            => shell?.Cancel();
+
+        public void Print()
+        {
+            try
+            {
+                var file = IO.Path.GetTempPath().PathCombine(Host?.Runtime.Session.Property("ProductName") + ".licence.rtf");
+                IO.File.WriteAllText(file, LicenceText);
+                Process.Start(file);
+            }
+            catch
+            {
+                // Catch all, we don't want the installer to crash in an
+                // attempt to write to a file.
+            }
+        }
+    }
+}