求救:用c#如何对cad2007将选中的文本进行大小写转换

[linjiancun]

本人刚学cad二次开发，请大家教教我!~

[麻子Mozart]

帮顶

[ssqinxiaojing]

up!!! Good good study,day day up!

[blestcc]

不懂cad

[csjtxy]

ding

[xuezhanliang6886]

CAD?二次开发！！

高手们出来解决解决呀！帮顶啦！！

[linjiancun]

自己解决问题:
代码如下,喜欢的人拿去用:

// (C) Copyright 2002-2007 by Autodesk, Inc. 
//
// Permission to use, copy, modify, and distribute this software in
// object code form for any purpose and without fee is hereby granted, 
// provided that the above copyright notice appears in all copies and 
// that both that copyright notice and the limited warranty and
// restricted rights notice below appear in all supporting 
// documentation.
//
// AUTODESK PROVIDES THIS PROGRAM "AS IS" AND WITH ALL FAULTS. 
// AUTODESK SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTY OF
// MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE.  AUTODESK, INC. 
// DOES NOT WARRANT THAT THE OPERATION OF THE PROGRAM WILL BE
// UNINTERRUPTED OR ERROR FREE.
//
// Use, duplication, or disclosure by the U.S. Government is subject to 
// restrictions set forth in FAR 52.227-19 (Commercial Computer
// Software - Restricted Rights) and DFAR 252.227-7013(c)(1)(ii)
// (Rights in Technical Data and Computer Software), as applicable.
//

using System;
using Autodesk.AutoCAD.Runtime;
using Autodesk.AutoCAD.EditorInput;
using Autodesk.AutoCAD.Windows;
using Autodesk.AutoCAD.ApplicationServices;
using Autodesk.AutoCAD.DatabaseServices;
using Autodesk.AutoCAD.Geometry;
[assembly: CommandClass(typeof(ChangeCase.Commands))]

namespace ChangeCase
{
    /// <summary>
    /// Summary description for Commands.
    /// </summary>
    public class Commands
    {
        public Commands()
        {
            //
            // TODO: Add constructor logic here
            //
        }

        // 将选中的字母将小写转换成大写
        [CommandMethod("capital")]
        static public void capital() // This method can have any name
        {

            {
                Database db = HostApplicationServices.WorkingDatabase;
                Editor ed = Application.DocumentManager.MdiActiveDocument.Editor;
                PromptSelectionOptions optSel = new PromptSelectionOptions();
                PromptEntityOptions optEnt = new PromptEntityOptions("\n请选择文字");
                optEnt.SetRejectMessage("\n您选择的对象不是文字，请重新选择！");
                optEnt.AddAllowedClass(typeof(DBText), true);
                optEnt.AddAllowedClass(typeof(MText), true);
                PromptEntityResult resEnt = ed.GetEntity(optEnt);
                if (resEnt.Status != PromptStatus.OK)
                    return;
                ObjectId entID = resEnt.ObjectId;
                using (Transaction trans = db.TransactionManager.StartTransaction())
                {
                    Entity ent = (Entity)trans.GetObject(entID, OpenMode.ForWrite);
                    DBText textEnt;
                    MText mtextEnt;
                    try
                    {
                        textEnt = (DBText)ent;
                        textEnt.TextString = textEnt.TextString.ToUpper();
                    }
                    catch
                    {
                        mtextEnt = (MText)ent;
                        mtextEnt.Contents = mtextEnt.Contents.ToUpper();
                    }
                    trans.Commit();

                }
            }
        }
        // 将选中的字母将大写转换成小写
        [CommandMethod("lowercase")]
        static public void lowercase()
        {
            Database db = HostApplicationServices.WorkingDatabase;
            Editor ed = Application.DocumentManager.MdiActiveDocument.Editor;
            PromptSelectionOptions optSel = new PromptSelectionOptions();
            PromptEntityOptions optEnt = new PromptEntityOptions("\n请选择文字");
             optEnt.SetRejectMessage("\n您选择的对象不是文字，请重新选择！");
            optEnt.AddAllowedClass(typeof(DBText), true);
            optEnt.AddAllowedClass(typeof(MText), true);
            PromptEntityResult resEnt = ed.GetEntity(optEnt);
            if (resEnt.Status != PromptStatus.OK)
                return;
            ObjectId entID = resEnt.ObjectId;
            using(Transaction trans=db.TransactionManager.StartTransaction())
            {
                Entity ent = (Entity)trans.GetObject(entID, OpenMode.ForWrite);
                DBText textEnt;
                MText mtextEnt;
                try
                {
                    textEnt = (DBText)ent;
                    textEnt.TextString = textEnt.TextString.ToLower();
                }
                catch
                {
                    mtextEnt = (MText)ent;
                
                    mtextEnt.Contents = mtextEnt.Contents.ToLower();
                }
                trans.Commit();

            }
        }


    }
}

[ssqinxiaojing]

楼主人好好哦！
顶起来！