c# 获取CAD已加载的线型 并且在对话框的下拉列表显示出来

using Autodesk.AutoCAD.ApplicationServices;
using Autodesk.AutoCAD.DatabaseServices;
using Autodesk.AutoCAD.EditorInput;
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace 图书管理登录界面WPF.Service
{
public class LineStyleInfo
{
public ObjectId id { get; set; }
public string lineTypename { get; set; }
}

public class GetLineType
{/// <summary>/// 获取线型/// </summary>/// <returns></returns>public static List<LineStyleInfo> GetLinetype(){Document doc = Application.DocumentManager.MdiActiveDocument;Database db = doc?.Database;Editor ed = doc?.Editor;using (Transaction trans = db.TransactionManager.StartTransaction()){List<LineStyleInfo> lineTypeInfo = new List<LineStyleInfo>();try{if (doc == null) return (lineTypeInfo);LinetypeTable linetypeT = trans.GetObject(db.LinetypeTableId, OpenMode.ForRead) as LinetypeTable;foreach (ObjectId item in linetypeT){LinetypeTableRecord LineTypeRecordName = trans.GetObject(item, OpenMode.ForRead) as LinetypeTableRecord;lineTypeInfo.Add(new LineStyleInfo{id = item,lineTypename = LineTypeRecordName.Name});}trans.Commit();}catch (Exception ex){Debug.WriteLine(ex.Message);}return (lineTypeInfo);}}
}

}

using Autodesk.AutoCAD.DatabaseServices;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using 图书管理登录界面WPF.Service;

namespace 图书管理登录界面WPF.Mode
{
public class LineTypeData
{
public List DataLineTableR { get; }
public LineTypeData()
{
List LineTypeTableR = GetLineType.GetLinetype();
DataLineTableR = LineTypeTableR;
}
}
}

using Autodesk.AutoCAD.DatabaseServices;
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Collections.Specialized;
using System.ComponentModel;
using System.Linq;
using System.Runtime.CompilerServices;
using System.Text;
using System.Threading.Tasks;
using 图书管理登录界面WPF.Mode;
using 图书管理登录界面WPF.Service;

namespace 图书管理登录界面WPF.ViewMode
{
public class LineTypes:INotifyPropertyChanged
{
LineTypeData lineTypeData;
public LineTypes()
{
lineTypeData=new LineTypeData();
LineTypeList = new ObservableCollection (lineTypeData.DataLineTableR);
LineTypeCount = LineTypeList.Count;

        // 可选：默认选中第一个if (LineTypeList.Any()){SelectlineType = LineTypeList.First().id.ToString();SelectedLineTypeName = LineTypeList.First().lineTypename;}}private ObservableCollection<LineStyleInfo> _lineTypeList; //保留完整的数据结构private string _selectlineType;public string SelectedLineTypeName { get; set; }public int LineTypeCount { get; set; }public ObservableCollection <LineStyleInfo> LineTypeList{get => _lineTypeList;set { _lineTypeList = value;OnPropertyChanged();} }public  string SelectlineType {get => _selectlineType;set{_selectlineType = value;OnPropertyChanged();}}public event PropertyChangedEventHandler PropertyChanged;private void OnPropertyChanged([CallerMemberName] string PropertyName = null) =>PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(PropertyName));
}

}

    <ComboBox ItemsSource="{Binding LineTypeList}" DisplayMemberPath="lineTypename" SelectedValuePath="id"  VerticalAlignment="Center" SelectedValue="{Binding SelectlineType}" FontSize="20"  Height="50" Width="300" Background="Red"/><TextBox Height="50" Width="300" Margin="0,150,0,0" FontSize="15" Text="{Binding SelectlineType}"/>
</Grid>