Smart Client Software Factory 映射业务实体到界面元素

下面做了一个例子，如下图，这个例子的主要目的是，把业务模型实体类映射到具体的UI控件上

上面在Module(自己创建的业务工程)右键添加一个实体类模型 Attachment

[csharp] view plaincopyprint?

1. using System;  
2. using System.Collections.Generic;  
3. using System.Linq;  
4. using System.Text;  
5.   
6. namespace SmartClient.Module  
7. {  
8.     public class Attachment  
9.     {  
10.         public event EventHandler StatusChanged;  
11.   
12.         public enum AttachmentStatus  
13.         {  
14.             NotAvailable,  
15.             Downloading,  
16.             AvailableNotModified,  
17.             AvailableModified,  
18.             ToBeUploaded,  
19.             Uploading,  
20.             Uploaded  
21.         }  
22.   
23.         private string _displayName;  
24.   
25.         public string DisplayName  
26.         {  
27.             get { return _displayName; }  
28.             set { _displayName = value; }  
29.         }  
30.   
31.         private string _fileName;  
32.   
33.         public string FileName  
34.         {  
35.             get { return _fileName; }  
36.             set { _fileName = value; }  
37.         }  
38.   
39.         private string _documentUrl;  
40.   
41.         public string DocumentUrl  
42.         {  
43.             get { return _documentUrl; }  
44.             set { _documentUrl = value; }  
45.         }  
46.   
47.         private AttachmentStatus _status;  
48.   
49.         public AttachmentStatus Status  
50.         {  
51.             get { return _status; }  
52.             set  
53.             {  
54.                 _status = value;  
55.             }  
56.         }  
57.   
58.         private DateTime _localCreationTime;  
59.   
60.         public DateTime LocalCreationTime  
61.         {  
62.             get { return _localCreationTime; }  
63.             set { _localCreationTime = value; }  
64.         }  
65.     }  
66. }  

再添加一个映射器类,AttachmentMapper，它的作用是把这个业务实体绑定到ListView中

[csharp] view plaincopyprint?

1. using System;  
2. using System.Collections.Generic;  
3. using System.Linq;  
4. using System.Text;  
5. using System.Windows.Forms;  
6.   
7. namespace SmartClient.Module  
8. {  
9.     public static class AttachmentMapper  
10.     {  
11.         public static ListViewItem ToListViewItem(Attachment attachment)  
12.         {  
13.             return new AttachmentListViewItem(attachment);  
14.         }  
15.   
16.         public static Attachment FromListViewItem(ListViewItem listViewItem)  
17.         {  
18.             AttachmentListViewItem attachmentListViewItem =  
19.                             listViewItem as AttachmentListViewItem;  
20.   
21.             return attachmentListViewItem.Attachment;  
22.         }  
23.   
24.         private class AttachmentListViewItem : ListViewItem  
25.         {  
26.             private Attachment _attachment;  
27.   
28.             public AttachmentListViewItem(Attachment attachment)  
29.             {  
30.                 Name = attachment.DisplayName;  
31.                 Text = attachment.DisplayName;  
32.                 SubItems.Add(AttachmentStatusToDisplayText(attachment));  
33.                 _attachment = attachment;  
34.             }  
35.   
36.             private static string AttachmentStatusToDisplayText(Attachment attachment)  
37.             {  
38.                 switch (attachment.Status)  
39.                 {  
40.                     case Attachment.AttachmentStatus.AvailableModified:  
41.                         return "Modified";  
42.   
43.                     case Attachment.AttachmentStatus.AvailableNotModified:  
44.                         return "Available";  
45.   
46.                     case Attachment.AttachmentStatus.Downloading:  
47.                         return "Downloading...";  
48.   
49.                     case Attachment.AttachmentStatus.NotAvailable:  
50.                         return "To be downloaded";  
51.   
52.                     case Attachment.AttachmentStatus.ToBeUploaded:  
53.                         return "To be uploaded";  
54.   
55.                     case Attachment.AttachmentStatus.Uploaded:  
56.                         return "Uploaded";  
57.   
58.                     case Attachment.AttachmentStatus.Uploading:  
59.                         return "Uploading";  
60.                 }  
61.   
62.                 return attachment.Status.ToString();  
63.             }  
64.   
65.             public Attachment Attachment  
66.             {  
67.                 get { return _attachment; }  
68.             }  
69.         }  
70.     }  
71. }  

然后我们在View中，拖放一个ListView上去，并命名为_attachmentsListView，并修改其.cs代码

[csharp] view plaincopyprint?

1. using System;  
2. using System.Windows.Forms;  
3. using Microsoft.Practices.CompositeUI.SmartParts;  
4. using Microsoft.Practices.ObjectBuilder;  
5. using SmartClient.Infrastructure.Interface;  
6.   
7. namespace SmartClient.Module  
8. {  
9.     public partial class View : UserControl, IView  
10.     {  
11.         public View()  
12.         {  
13.             InitializeComponent();  
14.         }  
15.   
16.         protected override void OnLoad(EventArgs e)  
17.         {  
18.             _presenter.OnViewReady();  
19.             base.OnLoad(e);  
20.             //加入如下代码，在窗体加载时执行对ListView的绑定  
21.             var attachment = new Attachment();  
22.             attachment.DisplayName = "这是一个测试";  
23.             AddAttachmentToList(attachment);  
24.         }  
25.   
26.         private void AddAttachmentToList(Attachment attachment)  
27.         {  
28.             ListViewItem item = AttachmentMapper.ToListViewItem(attachment);  
29.             _attachmentsListView.Items.Add(item);  
30.         }  
31.     }  
32. }  

最后我们得到如下的界面，ListView已经绑定上我们测试的数据