（八十三）c#Winform自定义控件-导航菜单（扩展）
（八十三）c#Winform自定义控件-导航菜单（扩展）
冰封一夏
发布于 2019-10-11 15:15:52
发布于 2019-10-11 15:15:52
前提
入行已经7,8年了，一直想做一套漂亮点的自定义控件，于是就有了本系列文章。
GitHub：https://github.com/kwwwvagaa/NetWinformControl
码云：https://gitee.com/kwwwvagaa/net_winform_custom_control.git
如果觉得写的还行，请点个 star 支持一下吧
来都来了，点个【推荐】再走吧，谢谢
NuGet
Install-Package HZH_Controls目录
https://www.cnblogs.com/bfyx/p/11364884.html
用处及效果
以上为demo效果，你使用此控件可以实现以下弹出效果
准备工作
没什么准备的
开始
添加一个类NavigationMenuItemExt 继承NavigationMenuItemBase
1 public class NavigationMenuItemExt : NavigationMenuItemBase
2 {
3 public System.Windows.Forms.Control ShowControl { get; set; }
4 }添加一个用户控件UCNavigationMenuExt
添加属性
1 /// <summary>
2 /// Occurs when [click itemed].
3 /// </summary>
4 [Description("点击节点事件"), Category("自定义")]
5
6 public event EventHandler ClickItemed;
7 /// <summary>
8 /// The select item
9 /// </summary>
10 private NavigationMenuItemExt selectItem = null;
11
12 /// <summary>
13 /// Gets the select item.
14 /// </summary>
15 /// <value>The select item.</value>
16 [Description("选中的节点"), Category("自定义")]
17 public NavigationMenuItemExt SelectItem
18 {
19 get { return selectItem; }
20 private set { selectItem = value; }
21 }
22
23 /// <summary>
24 /// The items
25 /// </summary>
26 NavigationMenuItemExt[] items;
27
28 /// <summary>
29 /// Gets or sets the items.
30 /// </summary>
31 /// <value>The items.</value>
32 [Description("节点列表"), Category("自定义")]
33 public NavigationMenuItemExt[] Items
34 {
35 get { return items; }
36 set
37 {
38 items = value;
39 ReloadMenu();
40 }
41 }
42 /// <summary>
43 /// The tip color
44 /// </summary>
45 private Color tipColor = Color.FromArgb(255, 87, 34);
46
47 /// <summary>
48 /// Gets or sets the color of the tip.
49 /// </summary>
50 /// <value>The color of the tip.</value>
51 [Description("角标颜色"), Category("自定义")]
52 public Color TipColor
53 {
54 get { return tipColor; }
55 set { tipColor = value; }
56 }
57
58 /// <summary>
59 /// 获取或设置控件的前景色。
60 /// </summary>
61 /// <value>The color of the fore.</value>
62 /// <PermissionSet>
63 /// <IPermission class="System.Security.Permissions.FileIOPermission, mscorlib, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Unrestricted="true" />
64 /// </PermissionSet>
65 public override System.Drawing.Color ForeColor
66 {
67 get
68 {
69 return base.ForeColor;
70 }
71 set
72 {
73 base.ForeColor = value;
74 foreach (Control c in this.Controls)
75 {
76 c.ForeColor = value;
77 }
78 }
79 }
80 /// <summary>
81 /// 获取或设置控件显示的文字的字体。
82 /// </summary>
83 /// <value>The font.</value>
84 /// <PermissionSet>
85 /// <IPermission class="System.Security.Permissions.EnvironmentPermission, mscorlib, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Unrestricted="true" />
86 /// <IPermission class="System.Security.Permissions.FileIOPermission, mscorlib, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Unrestricted="true" />
87 /// <IPermission class="System.Security.Permissions.SecurityPermission, mscorlib, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Flags="UnmanagedCode, ControlEvidence" />
88 /// <IPermission class="System.Diagnostics.PerformanceCounterPermission, System, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Unrestricted="true" />
89 /// </PermissionSet>
90 public override Font Font
91 {
92 get
93 {
94 return base.Font;
95 }
96 set
97 {
98 base.Font = value;
99 foreach (Control c in this.Controls)
100 {
101 c.Font = value;
102 }
103 }
104 }
105
106 /// <summary>
107 /// The m LST anchors
108 /// </summary>
109 Dictionary<NavigationMenuItemExt, FrmAnchor> m_lstAnchors = new Dictionary<NavigationMenuItemExt, FrmAnchor>();加载和绘图
1 private void ReloadMenu()
2 {
3 try
4 {
5 ControlHelper.FreezeControl(this, true);
6 this.Controls.Clear();
7 if (items != null && items.Length > 0)
8 {
9 foreach (var item in items)
10 {
11 var menu = (NavigationMenuItemExt)item;
12 Label lbl = new Label();
13 lbl.AutoSize = false;
14 lbl.TextAlign = ContentAlignment.MiddleCenter;
15 lbl.Width = menu.ItemWidth;
16 lbl.Text = menu.Text;
17
18 lbl.Font = Font;
19 lbl.ForeColor = ForeColor;
20
21 lbl.Paint += lbl_Paint;
22 lbl.MouseEnter += lbl_MouseEnter;
23 lbl.Tag = menu;
24 lbl.Click += lbl_Click;
25 if (menu.AnchorRight)
26 {
27 lbl.Dock = DockStyle.Right;
28 }
29 else
30 {
31 lbl.Dock = DockStyle.Left;
32 }
33 this.Controls.Add(lbl);
34
35 lbl.BringToFront();
36 }
37
38
39 }
40 }
41 finally
42 {
43 ControlHelper.FreezeControl(this, false);
44 }
45 }
46
47 /// <summary>
48 /// Handles the Click event of the lbl control.
49 /// </summary>
50 /// <param name="sender">The source of the event.</param>
51 /// <param name="e">The <see cref="EventArgs"/> instance containing the event data.</param>
52 void lbl_Click(object sender, EventArgs e)
53 {
54 Label lbl = sender as Label;
55 if (lbl.Tag != null)
56 {
57 var menu = (NavigationMenuItemExt)lbl.Tag;
58 if (menu.ShowControl == null)
59 {
60 selectItem = menu;
61
62 while (m_lstAnchors.Count > 0)
63 {
64 try
65 {
66 foreach (var item in m_lstAnchors)
67 {
68 item.Value.Hide();
69 }
70 }
71 catch { }
72 }
73
74 if (ClickItemed != null)
75 {
76 ClickItemed(this, e);
77 }
78 }
79 }
80 }
81 /// <summary>
82 /// Handles the MouseEnter event of the lbl control.
83 /// </summary>
84 /// <param name="sender">The source of the event.</param>
85 /// <param name="e">The <see cref="EventArgs" /> instance containing the event data.</param>
86 void lbl_MouseEnter(object sender, EventArgs e)
87 {
88 Label lbl = sender as Label;
89 var menu = lbl.Tag as NavigationMenuItemExt;
90 foreach (var item in m_lstAnchors)
91 {
92 m_lstAnchors[item.Key].Hide();
93 }
94 if (menu.ShowControl != null)
95 {
96 if (!m_lstAnchors.ContainsKey(menu))
97 {
98 m_lstAnchors[menu] = new FrmAnchor(lbl, menu.ShowControl);
99 }
100 m_lstAnchors[menu].Show();
101 m_lstAnchors[menu].Size = menu.ShowControl.Size;
102 }
103 }
104 /// <summary>
105 /// Handles the Paint event of the lbl control.
106 /// </summary>
107 /// <param name="sender">The source of the event.</param>
108 /// <param name="e">The <see cref="PaintEventArgs" /> instance containing the event data.</param>
109 void lbl_Paint(object sender, PaintEventArgs e)
110 {
111 Label lbl = sender as Label;
112 if (lbl.Tag != null)
113 {
114 var menu = (NavigationMenuItemExt)lbl.Tag;
115 e.Graphics.SetGDIHigh();
116
117 if (menu.ShowTip)
118 {
119 if (!string.IsNullOrEmpty(menu.TipText))
120 {
121 var rect = new Rectangle(lbl.Width - 25, lbl.Height / 2 - 10, 20, 20);
122 var path = rect.CreateRoundedRectanglePath(5);
123 e.Graphics.FillPath(new SolidBrush(tipColor), path);
124 e.Graphics.DrawString(menu.TipText, new Font("微软雅黑", 8f), new SolidBrush(Color.White), rect, new StringFormat() { Alignment = StringAlignment.Center, LineAlignment = StringAlignment.Center });
125 }
126 else
127 {
128 e.Graphics.FillEllipse(new SolidBrush(tipColor), new Rectangle(lbl.Width - 20, lbl.Height / 2 - 10, 10, 10));
129 }
130 }
131 if (menu.Icon != null)
132 {
133 e.Graphics.DrawImage(menu.Icon, new Rectangle(1, (lbl.Height - 25) / 2, 25, 25), 0, 0, menu.Icon.Width, menu.Icon.Height, GraphicsUnit.Pixel);
134 }
135 }
136 }全部代码
1 // ***********************************************************************
2 // Assembly : HZH_Controls
3 // Created : 2019-10-11
4 //
5 // ***********************************************************************
6 // <copyright file="UCNavigationMenuExt.cs">
7 // Copyright by Huang Zhenghui(黄正辉) All, QQ group:568015492 QQ:623128629 Email:623128629@qq.com
8 // </copyright>
9 //
10 // Blog: https://www.cnblogs.com/bfyx
11 // GitHub：https://github.com/kwwwvagaa/NetWinformControl
12 // gitee：https://gitee.com/kwwwvagaa/net_winform_custom_control.git
13 //
14 // If you use this code, please keep this note.
15 // ***********************************************************************
16 using System;
17 using System.Collections.Generic;
18 using System.ComponentModel;
19 using System.Drawing;
20 using System.Data;
21 using System.Linq;
22 using System.Text;
23 using System.Windows.Forms;
24 using HZH_Controls.Forms;
25
26 namespace HZH_Controls.Controls
27 {
28 /// <summary>
29 /// Class UCNavigationMenuExt.
30 /// Implements the <see cref="System.Windows.Forms.UserControl" />
31 /// </summary>
32 /// <seealso cref="System.Windows.Forms.UserControl" />
33 [DefaultEvent("ClickItemed")]
34 public partial class UCNavigationMenuExt : UserControl
35 {
36 /// <summary>
37 /// Occurs when [click itemed].
38 /// </summary>
39 [Description("点击节点事件"), Category("自定义")]
40
41 public event EventHandler ClickItemed;
42 /// <summary>
43 /// The select item
44 /// </summary>
45 private NavigationMenuItemExt selectItem = null;
46
47 /// <summary>
48 /// Gets the select item.
49 /// </summary>
50 /// <value>The select item.</value>
51 [Description("选中的节点"), Category("自定义")]
52 public NavigationMenuItemExt SelectItem
53 {
54 get { return selectItem; }
55 private set { selectItem = value; }
56 }
57
58 /// <summary>
59 /// The items
60 /// </summary>
61 NavigationMenuItemExt[] items;
62
63 /// <summary>
64 /// Gets or sets the items.
65 /// </summary>
66 /// <value>The items.</value>
67 [Description("节点列表"), Category("自定义")]
68 public NavigationMenuItemExt[] Items
69 {
70 get { return items; }
71 set
72 {
73 items = value;
74 ReloadMenu();
75 }
76 }
77 /// <summary>
78 /// The tip color
79 /// </summary>
80 private Color tipColor = Color.FromArgb(255, 87, 34);
81
82 /// <summary>
83 /// Gets or sets the color of the tip.
84 /// </summary>
85 /// <value>The color of the tip.</value>
86 [Description("角标颜色"), Category("自定义")]
87 public Color TipColor
88 {
89 get { return tipColor; }
90 set { tipColor = value; }
91 }
92
93 /// <summary>
94 /// 获取或设置控件的前景色。
95 /// </summary>
96 /// <value>The color of the fore.</value>
97 /// <PermissionSet>
98 /// <IPermission class="System.Security.Permissions.FileIOPermission, mscorlib, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Unrestricted="true" />
99 /// </PermissionSet>
100 public override System.Drawing.Color ForeColor
101 {
102 get
103 {
104 return base.ForeColor;
105 }
106 set
107 {
108 base.ForeColor = value;
109 foreach (Control c in this.Controls)
110 {
111 c.ForeColor = value;
112 }
113 }
114 }
115 /// <summary>
116 /// 获取或设置控件显示的文字的字体。
117 /// </summary>
118 /// <value>The font.</value>
119 /// <PermissionSet>
120 /// <IPermission class="System.Security.Permissions.EnvironmentPermission, mscorlib, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Unrestricted="true" />
121 /// <IPermission class="System.Security.Permissions.FileIOPermission, mscorlib, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Unrestricted="true" />
122 /// <IPermission class="System.Security.Permissions.SecurityPermission, mscorlib, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Flags="UnmanagedCode, ControlEvidence" />
123 /// <IPermission class="System.Diagnostics.PerformanceCounterPermission, System, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Unrestricted="true" />
124 /// </PermissionSet>
125 public override Font Font
126 {
127 get
128 {
129 return base.Font;
130 }
131 set
132 {
133 base.Font = value;
134 foreach (Control c in this.Controls)
135 {
136 c.Font = value;
137 }
138 }
139 }
140
141 /// <summary>
142 /// The m LST anchors
143 /// </summary>
144 Dictionary<NavigationMenuItemExt, FrmAnchor> m_lstAnchors = new Dictionary<NavigationMenuItemExt, FrmAnchor>();
145 /// <summary>
146 /// Initializes a new instance of the <see cref="UCNavigationMenuExt"/> class.
147 /// </summary>
148 public UCNavigationMenuExt()
149 {
150 InitializeComponent();
151 items = new NavigationMenuItemExt[0];
152 if (ControlHelper.IsDesignMode())
153 {
154 items = new NavigationMenuItemExt[4];
155 for (int i = 0; i < 4; i++)
156 {
157 items[i] = new NavigationMenuItemExt()
158 {
159 Text = "菜单" + (i + 1),
160 AnchorRight = i >= 2
161 };
162 }
163 }
164 }
165
166 /// <summary>
167 /// Reloads the menu.
168 /// </summary>
169 private void ReloadMenu()
170 {
171 try
172 {
173 ControlHelper.FreezeControl(this, true);
174 this.Controls.Clear();
175 if (items != null && items.Length > 0)
176 {
177 foreach (var item in items)
178 {
179 var menu = (NavigationMenuItemExt)item;
180 Label lbl = new Label();
181 lbl.AutoSize = false;
182 lbl.TextAlign = ContentAlignment.MiddleCenter;
183 lbl.Width = menu.ItemWidth;
184 lbl.Text = menu.Text;
185
186 lbl.Font = Font;
187 lbl.ForeColor = ForeColor;
188
189 lbl.Paint += lbl_Paint;
190 lbl.MouseEnter += lbl_MouseEnter;
191 lbl.Tag = menu;
192 lbl.Click += lbl_Click;
193 if (menu.AnchorRight)
194 {
195 lbl.Dock = DockStyle.Right;
196 }
197 else
198 {
199 lbl.Dock = DockStyle.Left;
200 }
201 this.Controls.Add(lbl);
202
203 lbl.BringToFront();
204 }
205
206
207 }
208 }
209 finally
210 {
211 ControlHelper.FreezeControl(this, false);
212 }
213 }
214
215 /// <summary>
216 /// Handles the Click event of the lbl control.
217 /// </summary>
218 /// <param name="sender">The source of the event.</param>
219 /// <param name="e">The <see cref="EventArgs"/> instance containing the event data.</param>
220 void lbl_Click(object sender, EventArgs e)
221 {
222 Label lbl = sender as Label;
223 if (lbl.Tag != null)
224 {
225 var menu = (NavigationMenuItemExt)lbl.Tag;
226 if (menu.ShowControl == null)
227 {
228 selectItem = menu;
229
230 while (m_lstAnchors.Count > 0)
231 {
232 try
233 {
234 foreach (var item in m_lstAnchors)
235 {
236 item.Value.Hide();
237 }
238 }
239 catch { }
240 }
241
242 if (ClickItemed != null)
243 {
244 ClickItemed(this, e);
245 }
246 }
247 }
248 }
249 /// <summary>
250 /// Handles the MouseEnter event of the lbl control.
251 /// </summary>
252 /// <param name="sender">The source of the event.</param>
253 /// <param name="e">The <see cref="EventArgs" /> instance containing the event data.</param>
254 void lbl_MouseEnter(object sender, EventArgs e)
255 {
256 Label lbl = sender as Label;
257 var menu = lbl.Tag as NavigationMenuItemExt;
258 foreach (var item in m_lstAnchors)
259 {
260 m_lstAnchors[item.Key].Hide();
261 }
262 if (menu.ShowControl != null)
263 {
264 if (!m_lstAnchors.ContainsKey(menu))
265 {
266 m_lstAnchors[menu] = new FrmAnchor(lbl, menu.ShowControl);
267 }
268 m_lstAnchors[menu].Show();
269 m_lstAnchors[menu].Size = menu.ShowControl.Size;
270 }
271 }
272 /// <summary>
273 /// Handles the Paint event of the lbl control.
274 /// </summary>
275 /// <param name="sender">The source of the event.</param>
276 /// <param name="e">The <see cref="PaintEventArgs" /> instance containing the event data.</param>
277 void lbl_Paint(object sender, PaintEventArgs e)
278 {
279 Label lbl = sender as Label;
280 if (lbl.Tag != null)
281 {
282 var menu = (NavigationMenuItemExt)lbl.Tag;
283 e.Graphics.SetGDIHigh();
284
285 if (menu.ShowTip)
286 {
287 if (!string.IsNullOrEmpty(menu.TipText))
288 {
289 var rect = new Rectangle(lbl.Width - 25, lbl.Height / 2 - 10, 20, 20);
290 var path = rect.CreateRoundedRectanglePath(5);
291 e.Graphics.FillPath(new SolidBrush(tipColor), path);
292 e.Graphics.DrawString(menu.TipText, new Font("微软雅黑", 8f), new SolidBrush(Color.White), rect, new StringFormat() { Alignment = StringAlignment.Center, LineAlignment = StringAlignment.Center });
293 }
294 else
295 {
296 e.Graphics.FillEllipse(new SolidBrush(tipColor), new Rectangle(lbl.Width - 20, lbl.Height / 2 - 10, 10, 10));
297 }
298 }
299 if (menu.Icon != null)
300 {
301 e.Graphics.DrawImage(menu.Icon, new Rectangle(1, (lbl.Height - 25) / 2, 25, 25), 0, 0, menu.Icon.Width, menu.Icon.Height, GraphicsUnit.Pixel);
302 }
303 }
304 }
305 }
306 }最后的话
如果你喜欢的话，请到 https://gitee.com/kwwwvagaa/net_winform_custom_control 点个星星吧
本文参与 腾讯云自媒体分享计划，分享自作者个人站点/博客。
原始发表：2019-10-11 ，如有侵权请联系 cloudcommunity@tencent.com 删除
评论
登录后参与评论
推荐阅读
目录