1 using PropertyGridHelpers.Controls;
2 using System;
3 using System.Collections.Generic;
4 using System.ComponentModel;
5 using System.Drawing.Design;
6 using System.Windows.Forms;
7 using System.Windows.Forms.Design;
8
9 namespace PropertyGridHelpers.UIEditors
10 {
11
12 public class FlagEnumUIEditor : UITypeEditor
13 {
14 private CheckedListBoxEx check;
15
16 public FlagEnumUIEditor()
17 {
18 check = new CheckedListBoxEx();
19 check.BorderStyle = BorderStyle.None;
20 }
21
22 public override object EditValue(ITypeDescriptorContext context, IServiceProvider provider, object value)
23 {
24 if (context != null && context.Instance != null && provider != null)
25 {
26 IWindowsFormsEditorService service = (IWindowsFormsEditorService)provider.GetService(typeof(IWindowsFormsEditorService));
27 if (service != null)
28 {
29 List<KeyValuePair<string, string>> list = new List<KeyValuePair<string, string>>();
30 for (int i = 0; i < 100; i++)
31 {
32 list.Add(new KeyValuePair<string, string>(i.ToString(), Guid.NewGuid().ToString("N")));
33 }
34 check.DataSource = list;
35 service.DropDownControl(check);
36 return check.GetSelectItemValueText;
37 }
38 }
39 return null;
40 }
41
42 public override UITypeEditorEditStyle GetEditStyle(ITypeDescriptorContext context)
43 {
44 return UITypeEditorEditStyle.DropDown;
45 }
46 }
47 }
FlagEnumUIEditor
1 using System;
2 using System.ComponentModel;
3 using System.Windows.Forms;
4 using System.Collections.Generic;
5 using System.Linq;
6
7 namespace PropertyGridHelpers.Controls
8 {
9
10 public class CheckedListBoxEx : CheckedListBox
11 {
12 private Container components = null;
13 public CheckedListBoxEx()
14 {
15 InitializeComponent();
16 }
17 protected override void Dispose(bool disposing)
18 {
19 if (disposing)
20 {
21 if (components != null)
22 components.Dispose();
23 }
24 base.Dispose(disposing);
25 }
26
27 #region Component Designer generated code
28
29 private void InitializeComponent()
30 {
31 this.CheckOnClick = true;
32 }
33 protected override void OnItemCheck(ItemCheckEventArgs e)
34 {
35 base.OnItemCheck(e);
36 }
37 #endregion
38
39 #region Add
40 public CheckItem Add(string code, string value)
41 {
42 CheckItem item = new CheckItem(code, value);
43 Items.Add(item);
44 return item;
45 }
46 public CheckItem Add(CheckItem item)
47 {
48 Items.Add(item);
49 return item;
50 }
51 #endregion
52 #region 获取选择值
53 public string GetSelectItemValueText { get { return string.Join(",", GetSelectItemAll.Select(n => n.Value)); } }
54 public string GetSelectItemKeyText { get { return string.Join(",", GetSelectItemAll.Select(n => n.Key)); } }
55 public List<KeyValuePair<string, string>> GetSelectItemAll
56 {
57 get
58 {
59 List<KeyValuePair<string, string>> list = new List<KeyValuePair<string, string>>();
60 for (int i = 0; i < Items.Count; i++)
61 {
62 CheckItem item = Items[i] as CheckItem;
63 if (GetItemChecked(i))
64 {
65 list.Add(new KeyValuePair<string, string>(item.Code, item.Value));
66 }
67 }
68 return list;
69 }
70 }
71 #endregion
72 private object data;
73 /// <summary>
74 /// 绑定数据源
75 /// </summary>
76 /// <param name="data"></param>
77 public new object DataSource
78 {
79 get
80 {
81 return data;
82 }
83 set
84 {
85 data = value;
86 if (data is IEnumerable<KeyValuePair<string, string>>)
87 {
88 foreach (KeyValuePair<string, string> item in (data as IEnumerable<KeyValuePair<string, string>>))
89 {
90 Add(item.Key, item.Value);
91 }
92 }
93 else if (data is IEnumerable<CheckItem>)
94 {
95 foreach (CheckItem item in (data as IEnumerable<CheckItem>))
96 {
97 Add(item);
98 }
99 }
100 }
101 }
102
103 }
104 }
CheckedListBoxEx
1 namespace PropertyGridHelpers.Controls
2 {
3 /// <summary>
4 /// Represents an item in the checklistbox
5 /// </summary>
6 public class CheckItem
7 {
8 public string Value;
9 public string Code;
10 public CheckItem(string code, string value)
11 {
12 this.Value = value;
13 this.Code = code;
14 }
15 public override string ToString()
16 {
17 return Value;
18 }
19 }
20
21 }
CheckItem
1 using PropertyGridHelpers.UIEditors;
2 using System.ComponentModel;
3 using System.Windows.Forms;
4
5 namespace WindowsFormsApplication1
6 {
7 public partial class Form1 : Form
8 {
9 public Form1()
10 {
11 InitializeComponent();
12 propertyGrid1.SelectedObject = new PropertyList(); ;
13 }
14 }
15 class PropertyList
16 {
17 string m_dir;
18 [EditorAttribute(typeof(FlagEnumUIEditor), typeof(System.Drawing.Design.UITypeEditor))]
19 [DisplayName("Direction")]
20 [Description("Direction property")]
21 public string Dir
22 {
23 get
24 {
25 return m_dir;
26 }
27 set
28 {
29 m_dir = value;
30 }
31 }
32 }
33
34 }
Form1
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原文地址：https://www.cnblogs.com/aaaaq/p/10802083.html
时间： 2024-10-18 07:09:09