C#Net用户自定义控件制作教程

1、Net 用户自定义控件继承 UserControl 类，设计很简单的，像平时在窗体上拖控 件一样。下面跟着我一步步做：1. 建立一个工程，添加用户控件。解决方案资源管理器-CustomControl t XJ解决方案CustomControl55 (1亍项目)H生成(U) 重新生成(1) 淸理闻 发布.新逹项添枷鱼现有项.添加引用.新逹文件夹Q)添加服务引用E).Windows窗体迥查看类关丟图(V)用户控件QJ).i设肯启动项目(A)组件调试类器聖切(T)粘贴(I)X移除(V)重命名卸我项目a在Windows资源管理器中打开文件夹Q02在打开的窗体内输入控件名称，如：ucButton，按确定

2、按钮。接下来在空白 区域拖放3个.Net控件。如下图：编码代码/ / C#.Net 设计用户自定义控件/ C#制作用户自定义控件(by 易学网)/ / ToolboxBitmap(typeof(CustomControl.ucButton),ucButton.bmp) public partial class ucButton : UserControlprivate bool _IsFocused =false; /标记按钮是否为焦点状态public ucButton()InitializeComponent();this.DoHideFocusedTag(); this.MyCatpion

3、Text =this.Name;private EventHandler _OnButtonClick = null;privatestring _MyCatpionText = ucButton1;/ 按钮标题/EditorBrowsable(EditorBrowsableState.Always)Browsable(true)DefaultValue(ucButton1)public string MyCatpionTextget return _MyCatpionText; set _MyCatpionText = value; lblCaption.Text = _MyCatpionT

4、ext; /用户自定义Click事件/EditorBrowsable(EditorBrowsableState.Always)Browsable(true)public event EventHandler OnButtonClickadd _OnButtonClick += new EventHandler(value); remove _OnButtonClick -= new EventHandler(value); private void lblCaption_Click(object sender, EventArgs e) /转移 Click 事件, 触发用户自定义事件if (_

5、OnButtonClick != null) _OnButtonClick(this, e);private void lblCaption_MouseDown(object sender, MouseEventArgs e) if (_IsFocused) lblCaption.Font = new Font(lblCaption.Font.FontFamily, lblCaption.Font.Size, FontStyle.Bold);private void lblCaption_MouseUp(object sender, MouseEventArgs e) if (_IsFocus

6、ed) lblCaption.Font = new Font(lblCaption.Font.FontFamily, lblCaption.Font.Size, FontStyle.Regular);private void ucButton_SizeChanged(object sender, EventArgs e) lblUnderLine.Top = this.Height - 1; lblUnderLine.Width = this.Width - 15;/ / 还原按钮状态/ public void DoHideFocusedTag()this.pictureBox1.Image

7、= global:vjsdn.CustomControl.Properties.Resources.GrayTag;this.lblUnderLine.Visible = false; lblCaption.ForeColor = Color.Black;/ / 设计按钮为焦点状态/ public void DoShowFocusedTag()this.pictureBox1.Image global:vjsdn.CustomControl.Properties.Resources.FosedTag; this.lblUnderLine.Visible = true;lblCaption.Fo

8、reColor = Color.Blue;private void ucButton_MouseEnter(object sender, EventArgs e)if (this.Parent != null)foreach (Control c in this.Parent.Controls)if (c is ucButton) (c as ucButton).DoHideFocusedTag();this.DoShowFocusedTag();_IsFocused = true;EditorBrowsable(EditorBrowsableState.Always)Browsable(tr

9、ue)Description()public Label MyCaptionget return lblCaption; private void lblCaption_MouseEnter(object sender, EventArgs e) this.ucButton_MouseEnter(sender, e);按 F5 编译项目，建立一个测试窗体，在控件工具栏会看到有个齿轮图标的项 目。工具箱-所有指针E i ndi ngS ourEutChe匚kBoxCheekedLi etBoxC ol or D i al o gCumbuBox在窗体上拖 3 工具箱-所有指针E i ndi ng

10、S ourEutChe匚kBoxCheekedLi etBoxC ol or D i al o gCumbuBox0k指针EindingNavi gatucButtonEindingNavi gat设置按钮标题及事件。ucButtom 属性田Margin.3. S 3, 3EM ax i miiiTiS ireo. oHMinimiiiTiSi ze0, 14M o di fi ersFr i vaIEM ap t i unMyC：mtpi wlTeh t保存数据(Save Data)I1Fadding0. D 0, 0Ri ghtTuLeftNo田Si ze1T4, 14TablndexT abS tupTrueucButtom 事件MouseMoveM uus eUpMOnBu tt ordCl i ckucBut t onl_0nBut t onC V