블로그 이미지
Every unexpected event is a path to learning for you.

카테고리

분류 전체보기 (2307)
Unity3D (564)
Programming (470)
Unreal (4)
Gamebryo (56)
Tip & Tech (182)
협업 (34)
3DS Max (3)
Game (12)
Utility (114)
Etc (92)
Link (31)
Portfolio (19)
Subject (90)
iOS,OSX (37)
Android (12)
Linux (5)
잉여 프로젝트 (2)
게임이야기 (1)
Memories (19)
Interest (37)
Thinking (36)
한글 (26)
PaperCraft (5)
Animation (408)
Wallpaper (2)
재테크 (19)
Exercise (3)
나만의 맛집 (2)
냥이 (9)
육아 (5)
Total1,330,496
Today16
Yesterday334
Statistics Graph

달력

« » 2019.10
    1 2 3 4 5
6 7 8 9 10 11 12
13 14 15 16 17 18 19
20 21 22 23 24 25 26
27 28 29 30 31    

공지사항

태그목록

'Attribute'에 해당되는 글 1건

  1. 2011.10.27 PropertyGrid Attribute FileSelectorTypeEditor

As with many other technologies, the design time experience in Windows Workflow Foundation uses many of the same extensibility mechanisms found in other designers (such as the Windows Forms designer). One of those is the hability to provide custom type editors for properties by creating an UITypeEditor-derived class and then associating it with the property via the [Editor] attribute.

Here's a sample UITypeEditor that will present an OpenFileDialog to choose a file name as the property value:

//
// FileSelectorTypeEditor.cs
//
// Author:
//    Tomas Restrepo (tomasr@mvps.org)
//

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.ComponentModel.Design;
using System.Drawing;
using System.Drawing.Design;
using System.IO;
using System.Text;
using System.Windows.Forms;
using System.Windows.Forms.Design;

namespace Winterdom.Design.TypeEditors
{
   /// <summary>
   /// Customer UITypeEditor that pops up a
   /// file selector dialog
   /// </summary>
   public class FileSelectorTypeEditor : UITypeEditor
   {
      public override UITypeEditorEditStyle GetEditStyle(ITypeDescriptorContext context)
      {
         if ( context == null || context.Instance == null )
            return base.GetEditStyle(context);
         return UITypeEditorEditStyle.Modal;
      }

      public override object EditValue(ITypeDescriptorContext context, IServiceProvider provider, object value)
      {
         IWindowsFormsEditorService editorService;

         if ( context == null || context.Instance == null || provider == null )
            return value;

         try
         {
            // get the editor service, just like in windows forms
            editorService = (IWindowsFormsEditorService)
               provider.GetService(typeof(IWindowsFormsEditorService));

            OpenFileDialog dlg = new OpenFileDialog();
            dlg.Filter = "All Files (*.*)|*.*";
            dlg.CheckFileExists = true;

            string filename = (string)value;
            if ( !File.Exists(filename) )
               filename = null;
            dlg.FileName = filename;

            using ( dlg )
            {
               DialogResult res = dlg.ShowDialog();
               if ( res == DialogResult.OK )
               {
                  filename = dlg.FileName;
               }
            }
            return filename;

         } finally
         {
            editorService = null;
         }
      }
   } // class FileSelectorTypeEditor

} // namespace Winterdom.Design.TypeEditors

You can then easily associate it with a property like this:

[Editor(typeof(FileSelectorTypeEditor), typeof(UITypeEditor))]
public string Filename
{
   get { return _filename; }
   set { _filename = value; }
}

One thing to watch out for, though, is that at least with the July CTP of WinFX, WF will completely ignore your custom UITypeEditor if it is defined in the same assembly as the activity using it. Don't know why, but make sure you define it in a separate assembly you reference, and it should work OK.


출처 : http://winterdom.com/2006/08/acustomuitypeeditorforactivityproperties

Posted by blueasa

댓글을 달아 주세요