用于类型目录弹出窗口的 Revit API

Question

当我手动使用 Loadfamily 选项时，类型目录弹出窗口如下图所示。

但是通过 Revit api 编程，使用 Loadfamily() api 函数时弹出窗口不会出现。即使所需的 .TXT 文件在同一工作目录中可用。

您能帮助我们克服这个问题吗？

提前感谢您的支持

Answer 1

我认为不可能以编程方式启动与内置“加载族”命令分开的类型目录对话框。这给你两个选择：

1. 以编程方式使用内置通用功能

   PostCommand

   请注意，每次

   PostCommand

   执行

    只能使用一次 

   IExternalCommand
调用

    [Transaction(TransactionMode.Manual)]
    public class LoadFamilyWithTypeCatalog : IExternalCommand
    {
        public Result Execute(ExternalCommandData commandData, ref string message, ElementSet elements)
        {
            var commandId = RevitCommandId.LookupCommandId("ID_FAMILY_LOAD");
            commandData.Application.PostCommand(commandId);

            return Result.Succeeded;
        }
    }

2. 推出您自己的类型目录选择 UI。这应该不会太困难，因为类型目录只是一个 csv。一旦您询问用户要导入哪些行，您就可以通过迭代选定的行来创建/删除符号。这是一个关于如何做到这一点的非常粗略的示例：

Revit 命令

    [Transaction(TransactionMode.Manual)]
    public class LoadFamilyWithTypeCatalog_CustomUI : IExternalCommand
    {
        public Result Execute(ExternalCommandData commandData, ref string message, ElementSet elements)
        {
            var doc = commandData.Application.ActiveUIDocument.Document;

            var path = @"C:\StackOverflow\Box.rfa";

            using (var t = new Transaction(doc, "Load Family"))
            {
                t.Start();

                doc.LoadFamily(path, out var loadedFamily);

                if (loadedFamily == null)
                {
                    TaskDialog.Show("Family Not Found", $"Couldn't find: {path}");
                    return Result.Succeeded;
                }

                var typeCatalogForm = new TypeCatalog();
                typeCatalogForm.ShowDialog();

                // Load Selected Symbols
                var selectedSymbolNames = typeCatalogForm.Types.Table.Rows
                    .OfType<DataRow>()
                    .Where(x => x[0] is bool selected && selected)
                    .Select(x => x["Type"] as string)
                    .ToHashSet();

                var loadedSymbols = loadedFamily.GetFamilySymbolIds().Select(x => doc.GetElement(x))
                    .OfType<FamilySymbol>()
                    .ToList();


                // remove any loaded symbols that were not selected
                foreach (var symbol in loadedSymbols)
                {
                    if (selectedSymbolNames.Contains(symbol.Name)) continue;

                    doc.Delete(symbol.Id);
                }

                t.Commit();
            }

            return Result.Succeeded;
        }

DataGrid/CSV 导入：

请注意，您可能需要稍微清理一下，因为这只是为了说明如何完成。

    public partial class TypeCatalog : Window
    {
        public DataView Types { get; set; }

        public TypeCatalog()
        {
            Types = CreateDataSource();
            InitializeComponent();
            DataContext = this;
        }

        string CSVDataBase = @"c:\StackOverflow\Box.txt";

        //Create Collection for DataGrid Source
        DataView CreateDataSource()
        {
            //Create new DataTables and Rows
            DataTable dt = new DataTable();
            dt.Columns.Add("Selected", typeof(bool));
            DataRow dr;

            bool firstRow = true;
            var lines = File.ReadLines(CSVDataBase);
            //For each line in the File
            foreach (string Line in lines)
            {
                var cols = Line.Split(',');
                if (firstRow) // first row is the headers
                {
                    bool firstCol = true;
                    foreach (var col in cols)
                    {
                        if (firstCol)
                        {
                            firstCol = false;
                            dt.Columns.Add("Type"); // first column doesn't have a header in the text file
                            continue;
                        }

                        // the headers have a lot of extra stuff we don't care about
                        string cleanedHeader = col.Split('#')[0].Split('[')[0];
                        dt.Columns.Add(cleanedHeader);
                    }

                    firstRow = false;
                    continue;
                }


                //Create new Row
                dr = dt.NewRow();
                for (var i = 0; i < cols.Length - 1; i++)
                {
                    dr[i+1] = cols[i];
                }
                dt.Rows.Add(dr);
            }

            //Return Dataview 
            DataView dv = new DataView(dt);
            return dv;
        }
    }

xaml

<Window x:Class="StackOverflowAnswers.App.TypeCatalog"
        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"
        mc:Ignorable="d"
        Title="TypeCatalog" Height="450" Width="800">
    <Grid>
        <DataGrid ItemsSource="{Binding Types}" />

    </Grid>
</Window>

结果