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:
如果觉得写的还行, 请点个 star 支持一下吧
欢迎前来交流探讨: 企鹅群 568015492
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- 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
- public class NavigationMenuItemExt : NavigationMenuItemBase
- {
- public System.Windows.Forms.Control ShowControl { get; set; }
- }
添加一个用户控件 UCNavigationMenuExt
添加属性
- /// <summary>
- /// Occurs when [click itemed].
- /// </summary>
- [Description("点击节点事件"), Category("自定义")]
- public event EventHandler ClickItemed;
- /// <summary>
- /// The select item
- /// </summary>
- private NavigationMenuItemExt selectItem = null;
- /// <summary>
- /// Gets the select item.
- /// </summary>
- /// <value>The select item.</value>
- [Description("选中的节点"), Category("自定义")]
- public NavigationMenuItemExt SelectItem
- {
- get { return selectItem; }
- private set { selectItem = value; }
- }
- /// <summary>
- /// The items
- /// </summary>
- NavigationMenuItemExt[] items;
- /// <summary>
- /// Gets or sets the items.
- /// </summary>
- /// <value>The items.</value>
- [Description("节点列表"), Category("自定义")]
- public NavigationMenuItemExt[] Items
- {
- get { return items; }
- set
- {
- items = value;
- ReloadMenu();
- }
- }
- /// <summary>
- /// The tip color
- /// </summary>
- private Color tipColor = Color.FromArgb(255, 87, 34);
- /// <summary>
- /// Gets or sets the color of the tip.
- /// </summary>
- /// <value>The color of the tip.</value>
- [Description("角标颜色"), Category("自定义")]
- public Color TipColor
- {
- get { return tipColor; }
- set { tipColor = value; }
- }
- /// <summary>
- /// 获取或设置控件的前景色.
- /// </summary>
- /// <value>The color of the fore.</value>
- /// <PermissionSet>
- /// <IPermission class="System.Security.Permissions.FileIOPermission, mscorlib, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Unrestricted="true" />
- /// </PermissionSet>
- public override System.Drawing.Color ForeColor
- {
- get
- {
- return base.ForeColor;
- }
- set
- {
- base.ForeColor = value;
- foreach (Control c in this.Controls)
- {
- c.ForeColor = value;
- }
- }
- }
- /// <summary>
- /// 获取或设置控件显示的文字的字体.
- /// </summary>
- /// <value>The font.</value>
- /// <PermissionSet>
- /// <IPermission class="System.Security.Permissions.EnvironmentPermission, mscorlib, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Unrestricted="true" />
- /// <IPermission class="System.Security.Permissions.FileIOPermission, mscorlib, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Unrestricted="true" />
- /// <IPermission class="System.Security.Permissions.SecurityPermission, mscorlib, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Flags="UnmanagedCode, ControlEvidence" />
- /// <IPermission class="System.Diagnostics.PerformanceCounterPermission, System, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Unrestricted="true" />
- /// </PermissionSet>
- public override Font Font
- {
- get
- {
- return base.Font;
- }
- set
- {
- base.Font = value;
- foreach (Control c in this.Controls)
- {
- c.Font = value;
- }
- }
- }
- /// <summary>
- /// The m LST anchors
- /// </summary>
- Dictionary<NavigationMenuItemExt, FrmAnchor> m_lstAnchors = new Dictionary<NavigationMenuItemExt, FrmAnchor>();
加载和绘图
- private void ReloadMenu()
- {
- try
- {
- ControlHelper.FreezeControl(this, true);
- this.Controls.Clear();
- if (items != null && items.Length> 0)
- {
- foreach (var item in items)
- {
- var menu = (NavigationMenuItemExt)item;
- Label lbl = new Label();
- lbl.AutoSize = false;
- lbl.TextAlign = ContentAlignment.MiddleCenter;
- lbl.Width = menu.ItemWidth;
- lbl.Text = menu.Text;
- lbl.Font = Font;
- lbl.ForeColor = ForeColor;
- lbl.Paint += lbl_Paint;
- lbl.MouseEnter += lbl_MouseEnter;
- lbl.Tag = menu;
- lbl.Click += lbl_Click;
- if (menu.AnchorRight)
- {
- lbl.Dock = DockStyle.Right;
- }
- else
- {
- lbl.Dock = DockStyle.Left;
- }
- this.Controls.Add(lbl);
- lbl.BringToFront();
- }
- }
- }
- finally
- {
- ControlHelper.FreezeControl(this, false);
- }
- }
- /// <summary>
- /// Handles the Click event of the lbl control.
- /// </summary>
- /// <param name="sender">The source of the event.</param>
- /// <param name="e">The <see cref="EventArgs"/> instance containing the event data.</param>
- void lbl_Click(object sender, EventArgs e)
- {
- Label lbl = sender as Label;
- if (lbl.Tag != null)
- {
- var menu = (NavigationMenuItemExt)lbl.Tag;
- if (menu.ShowControl == null)
- {
- selectItem = menu;
- while (m_lstAnchors.Count> 0)
- {
- try
- {
- foreach (var item in m_lstAnchors)
- {
- item.Value.Hide();
- }
- }
- catch { }
- }
- if (ClickItemed != null)
- {
- ClickItemed(this, e);
- }
- }
- }
- }
- /// <summary>
- /// Handles the MouseEnter event of the lbl control.
- /// </summary>
- /// <param name="sender">The source of the event.</param>
- /// <param name="e">The <see cref="EventArgs" /> instance containing the event data.</param>
- void lbl_MouseEnter(object sender, EventArgs e)
- {
- Label lbl = sender as Label;
- var menu = lbl.Tag as NavigationMenuItemExt;
- foreach (var item in m_lstAnchors)
- {
- m_lstAnchors[item.Key].Hide();
- }
- if (menu.ShowControl != null)
- {
- if (!m_lstAnchors.ContainsKey(menu))
- {
- m_lstAnchors[menu] = new FrmAnchor(lbl, menu.ShowControl);
- }
- m_lstAnchors[menu].Show();
- m_lstAnchors[menu].Size = menu.ShowControl.Size;
- }
- }
- /// <summary>
- /// Handles the Paint event of the lbl control.
- /// </summary>
- /// <param name="sender">The source of the event.</param>
- /// <param name="e">The <see cref="PaintEventArgs" /> instance containing the event data.</param>
- void lbl_Paint(object sender, PaintEventArgs e)
- {
- Label lbl = sender as Label;
- if (lbl.Tag != null)
- {
- var menu = (NavigationMenuItemExt)lbl.Tag;
- e.Graphics.SetGDIHigh();
- if (menu.ShowTip)
- {
- if (!string.IsNullOrEmpty(menu.TipText))
- {
- var rect = new Rectangle(lbl.Width - 25, lbl.Height / 2 - 10, 20, 20);
- var path = rect.CreateRoundedRectanglePath(5);
- e.Graphics.FillPath(new SolidBrush(tipColor), path);
- 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 });
- }
- else
- {
- e.Graphics.FillEllipse(new SolidBrush(tipColor), new Rectangle(lbl.Width - 20, lbl.Height / 2 - 10, 10, 10));
- }
- }
- if (menu.Icon != null)
- {
- e.Graphics.DrawImage(menu.Icon, new Rectangle(1, (lbl.Height - 25) / 2, 25, 25), 0, 0, menu.Icon.Width, menu.Icon.Height, GraphicsUnit.Pixel);
- }
- }
- }
全部代码
- //***********************************************************************
- // Assembly : HZH_Controls
- // Created : 2019-10-11
- //
- //***********************************************************************
- // <copyright file="UCNavigationMenuExt.cs">
- // Copyright by Huang Zhenghui(黄正辉) All, QQ group:568015492 QQ:623128629 Email:623128629@qq.com
- // </copyright>
- //
- // Blog: https://www.cnblogs.com/bfyx
- // GitHub:https://github.com/kwwwvagaa/NetWinformControl
- // gitee:https://gitee.com/kwwwvagaa/net_winform_custom_control.git
- //
- // If you use this code, please keep this note.
- //***********************************************************************
- using System;
- using System.Collections.Generic;
- using System.ComponentModel;
- using System.Drawing;
- using System.Data;
- using System.Linq;
- using System.Text;
- using System.Windows.Forms;
- using HZH_Controls.Forms;
- namespace HZH_Controls.Controls
- {
- /// <summary>
- /// Class UCNavigationMenuExt.
- /// Implements the <see cref="System.Windows.Forms.UserControl" />
- /// </summary>
- /// <seealso cref="System.Windows.Forms.UserControl" />
- [DefaultEvent("ClickItemed")]
- public partial class UCNavigationMenuExt : UserControl
- {
- /// <summary>
- /// Occurs when [click itemed].
- /// </summary>
- [Description("点击节点事件"), Category("自定义")]
- public event EventHandler ClickItemed;
- /// <summary>
- /// The select item
- /// </summary>
- private NavigationMenuItemExt selectItem = null;
- /// <summary>
- /// Gets the select item.
- /// </summary>
- /// <value>The select item.</value>
- [Description("选中的节点"), Category("自定义")]
- public NavigationMenuItemExt SelectItem
- {
- get { return selectItem; }
- private set { selectItem = value; }
- }
- /// <summary>
- /// The items
- /// </summary>
- NavigationMenuItemExt[] items;
- /// <summary>
- /// Gets or sets the items.
- /// </summary>
- /// <value>The items.</value>
- [Description("节点列表"), Category("自定义")]
- public NavigationMenuItemExt[] Items
- {
- get { return items; }
- set
- {
- items = value;
- ReloadMenu();
- }
- }
- /// <summary>
- /// The tip color
- /// </summary>
- private Color tipColor = Color.FromArgb(255, 87, 34);
- /// <summary>
- /// Gets or sets the color of the tip.
- /// </summary>
- /// <value>The color of the tip.</value>
- [Description("角标颜色"), Category("自定义")]
- public Color TipColor
- {
- get { return tipColor; }
- set { tipColor = value; }
- }
- /// <summary>
- /// 获取或设置控件的前景色.
- /// </summary>
- /// <value>The color of the fore.</value>
- /// <PermissionSet>
- /// <IPermission class="System.Security.Permissions.FileIOPermission, mscorlib, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Unrestricted="true" />
- /// </PermissionSet>
- public override System.Drawing.Color ForeColor
- {
- get
- {
- return base.ForeColor;
- }
- set
- {
- base.ForeColor = value;
- foreach (Control c in this.Controls)
- {
- c.ForeColor = value;
- }
- }
- }
- /// <summary>
- /// 获取或设置控件显示的文字的字体.
- /// </summary>
- /// <value>The font.</value>
- /// <PermissionSet>
- /// <IPermission class="System.Security.Permissions.EnvironmentPermission, mscorlib, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Unrestricted="true" />
- /// <IPermission class="System.Security.Permissions.FileIOPermission, mscorlib, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Unrestricted="true" />
- /// <IPermission class="System.Security.Permissions.SecurityPermission, mscorlib, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Flags="UnmanagedCode, ControlEvidence" />
- /// <IPermission class="System.Diagnostics.PerformanceCounterPermission, System, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Unrestricted="true" />
- /// </PermissionSet>
- public override Font Font
- {
- get
- {
- return base.Font;
- }
- set
- {
- base.Font = value;
- foreach (Control c in this.Controls)
- {
- c.Font = value;
- }
- }
- }
- /// <summary>
- /// The m LST anchors
- /// </summary>
- Dictionary<NavigationMenuItemExt, FrmAnchor> m_lstAnchors = new Dictionary<NavigationMenuItemExt, FrmAnchor>();
- /// <summary>
- /// Initializes a new instance of the <see cref="UCNavigationMenuExt"/> class.
- /// </summary>
- public UCNavigationMenuExt()
- {
- InitializeComponent();
- items = new NavigationMenuItemExt[0];
- if (ControlHelper.IsDesignMode())
- {
- items = new NavigationMenuItemExt[4];
- for (int i = 0; i <4; i++)
- {
- items[i] = new NavigationMenuItemExt()
- {
- Text = "菜单" + (i + 1),
- AnchorRight = i>= 2
- };
- }
- }
- }
- /// <summary>
- /// Reloads the menu.
- /// </summary>
- private void ReloadMenu()
- {
- try
- {
- ControlHelper.FreezeControl(this, true);
- this.Controls.Clear();
- if (items != null && items.Length> 0)
- {
- foreach (var item in items)
- {
- var menu = (NavigationMenuItemExt)item;
- Label lbl = new Label();
- lbl.AutoSize = false;
- lbl.TextAlign = ContentAlignment.MiddleCenter;
- lbl.Width = menu.ItemWidth;
- lbl.Text = menu.Text;
- lbl.Font = Font;
- lbl.ForeColor = ForeColor;
- lbl.Paint += lbl_Paint;
- lbl.MouseEnter += lbl_MouseEnter;
- lbl.Tag = menu;
- lbl.Click += lbl_Click;
- if (menu.AnchorRight)
- {
- lbl.Dock = DockStyle.Right;
- }
- else
- {
- lbl.Dock = DockStyle.Left;
- }
- this.Controls.Add(lbl);
- lbl.BringToFront();
- }
- }
- }
- finally
- {
- ControlHelper.FreezeControl(this, false);
- }
- }
- /// <summary>
- /// Handles the Click event of the lbl control.
- /// </summary>
- /// <param name="sender">The source of the event.</param>
- /// <param name="e">The <see cref="EventArgs"/> instance containing the event data.</param>
- void lbl_Click(object sender, EventArgs e)
- {
- Label lbl = sender as Label;
- if (lbl.Tag != null)
- {
- var menu = (NavigationMenuItemExt)lbl.Tag;
- if (menu.ShowControl == null)
- {
- selectItem = menu;
- while (m_lstAnchors.Count> 0)
- {
- try
- {
- foreach (var item in m_lstAnchors)
- {
- item.Value.Hide();
- }
- }
- catch { }
- }
- if (ClickItemed != null)
- {
- ClickItemed(this, e);
- }
- }
- }
- }
- /// <summary>
- /// Handles the MouseEnter event of the lbl control.
- /// </summary>
- /// <param name="sender">The source of the event.</param>
- /// <param name="e">The <see cref="EventArgs" /> instance containing the event data.</param>
- void lbl_MouseEnter(object sender, EventArgs e)
- {
- Label lbl = sender as Label;
- var menu = lbl.Tag as NavigationMenuItemExt;
- foreach (var item in m_lstAnchors)
- {
- m_lstAnchors[item.Key].Hide();
- }
- if (menu.ShowControl != null)
- {
- if (!m_lstAnchors.ContainsKey(menu))
- {
- m_lstAnchors[menu] = new FrmAnchor(lbl, menu.ShowControl);
- }
- m_lstAnchors[menu].Show();
- m_lstAnchors[menu].Size = menu.ShowControl.Size;
- }
- }
- /// <summary>
- /// Handles the Paint event of the lbl control.
- /// </summary>
- /// <param name="sender">The source of the event.</param>
- /// <param name="e">The <see cref="PaintEventArgs" /> instance containing the event data.</param>
- void lbl_Paint(object sender, PaintEventArgs e)
- {
- Label lbl = sender as Label;
- if (lbl.Tag != null)
- {
- var menu = (NavigationMenuItemExt)lbl.Tag;
- e.Graphics.SetGDIHigh();
- if (menu.ShowTip)
- {
- if (!string.IsNullOrEmpty(menu.TipText))
- {
- var rect = new Rectangle(lbl.Width - 25, lbl.Height / 2 - 10, 20, 20);
- var path = rect.CreateRoundedRectanglePath(5);
- e.Graphics.FillPath(new SolidBrush(tipColor), path);
- 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 });
- }
- else
- {
- e.Graphics.FillEllipse(new SolidBrush(tipColor), new Rectangle(lbl.Width - 20, lbl.Height / 2 - 10, 10, 10));
- }
- }
- if (menu.Icon != null)
- {
- e.Graphics.DrawImage(menu.Icon, new Rectangle(1, (lbl.Height - 25) / 2, 25, 25), 0, 0, menu.Icon.Width, menu.Icon.Height, GraphicsUnit.Pixel);
- }
- }
- }
- }
- }
- View Code
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来源: https://www.cnblogs.com/bfyx/p/11653011.html