revit api previewcontrol wpf预览窗口

族库管理插件 不直接打开文件，预览族文件的指定view，

进一步可以使用using 进行资源释放操作，这里没有写出来

using Autodesk.Revit.Attributes;
using Autodesk.Revit.DB;
using Autodesk.Revit.UI;
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Forms;
using System.Windows.Media.Media3D;namespace FamilyViewReader
{[Transaction(TransactionMode.Manual)][Regeneration(RegenerationOption.Manual)]public class ReadFamily3DViewsCommand : IExternalCommand{public Result Execute(ExternalCommandData commandData, ref string message, ElementSet elements){Autodesk.Revit.ApplicationServices.Application uiApp = commandData.Application.Application;Autodesk.Revit.UI.UIApplication uiapp = commandData.Application;Autodesk.Revit.UI.UIDocument uidoc = uiapp.ActiveUIDocument;Autodesk.Revit.DB.Document doc1 = uidoc.Document;// 使用文件对话框选择族文件string familyPath = SelectFamilyFile();if (string.IsNullOrEmpty(familyPath)){return Result.Cancelled;}try{// 打开族文件Document familyDoc = uiApp.OpenDocumentFile(familyPath);if (familyDoc == null){TaskDialog.Show("错误", "无法打开族文件。");return Result.Failed;}// 获取所有3D视图<>List<View3D>  threeDViews = new FilteredElementCollector(familyDoc).OfClass(typeof(View3D)).Cast<View3D>().Where(v => !v.IsTemplate).ToList();View3D view1=  threeDViews[0];// 检查当前视图是否为3D视图if (view1.ViewType != ViewType.ThreeD){TaskDialog.Show("错误", "当前视图不是3D视图，无法创建预览控件。");return Result.Failed;}// 创建预览控件var previewControl = new PreviewControl(familyDoc, view1.Id);// 创建 WPF 窗口（纯 C#）var window = new PreviewControlWindow();window.BuildUI();                                                                     // 构建 UIwindow.PreviewGrid.Children.Clear();                                     // 清空占位内容（如果有）window.PreviewGrid.Children.Add(previewControl);             // 添加预览控件System.Windows.Interop.WindowInteropHelper helper = new System.Windows.Interop.WindowInteropHelper(window);     // 设置窗口为 Revit 主窗口的上层helper.Owner = Process.GetCurrentProcess().MainWindowHandle;// 显示窗口（模态）window.ShowDialog();// 关闭族文档familyDoc.Close(false);return Result.Succeeded;}catch (Exception ex){TaskDialog.Show("错误", $"读取族文件时出错:\n{ex.Message}");return Result.Failed;}}private string SelectFamilyFile(){using (OpenFileDialog openFileDialog = new OpenFileDialog()){openFileDialog.Filter = "Revit族文件 (*.rfa)|*.rfa";openFileDialog.Title = "选择要读取的族文件";openFileDialog.Multiselect = false;if (openFileDialog.ShowDialog() == DialogResult.OK){return openFileDialog.FileName;}}return null;}}// WPF 窗口类（纯 C# 实现）public partial class PreviewControlWindow : Window{public System.Windows.Controls.Grid PreviewGrid { get; private set; }private System.Windows.Controls.Button btn1;public PreviewControlWindow(){Title = "Revit 预览控件示例";Height = 450;Width = 800;WindowStartupLocation = WindowStartupLocation.CenterOwner;BuildUI(); // 在构造函数中构建 UI}public void BuildUI(){// 主 Gridvar mainGrid = new System.Windows.Controls.Grid();this.Content = mainGrid;// 定义列：左侧固定 100，右侧星号mainGrid.ColumnDefinitions.Add(new ColumnDefinition { Width = new GridLength(100) });mainGrid.ColumnDefinitions.Add(new ColumnDefinition { Width = new GridLength(1, GridUnitType.Star) });// 左侧按钮 Gridvar leftGrid = new System.Windows.Controls.Grid { Background = System.Windows.Media.Brushes.LightGray };System.Windows.Controls.Grid.SetColumn(leftGrid, 0);mainGrid.Children.Add(leftGrid);// 创建按btn1 = new System.Windows.Controls. Button{Name = "Btn_1",Content = "按钮",Width = 80,Height = 30};btn1.Click += Btn_1_Click;leftGrid.Children.Add(btn1);// 右侧预览 Grid（初始添加占位 TextBlock）PreviewGrid = new System.Windows.Controls.Grid { Name = "PreviewGrid" };System.Windows.Controls.Grid.SetColumn(PreviewGrid, 1);mainGrid.Children.Add(PreviewGrid);var placeholder = new TextBlock{Text = "这里放预览控件",FontSize = 20,VerticalAlignment = VerticalAlignment.Center,HorizontalAlignment =System.Windows. HorizontalAlignment.Center};PreviewGrid.Children.Add(placeholder);}private void Btn_1_Click(object sender, RoutedEventArgs e){// 自定义按钮事件，例如关闭窗口this.Close();}}
}