效果预览，选择左边标签，右边内容会自动滚动到适当位置
public class AnchorPanel { List<PanelMenu> lst = new List<PanelMenu>(); Control MenuPan { get; set; } XtraScrollableControl XSControl; public AnchorPanel(Panel PanMenu, XtraScrollableControl xtraScrollableControl) { MenuPan = PanMenu; XSControl = xtraScrollableControl; XSControl.Scroll += XSControl_Scroll; XSControl.MouseWheel += XSControl_MouseWheel; XSControl.SizeChanged += XSControl_SizeChanged; XSControl.VerticalScroll.LargeChange = 20; } void XSControl_SizeChanged(object sender, EventArgs e) { if (LastAnchor != null && LastAnchorIniHeight < (sender as Control).Height) { LastAnchor.AnchorContainer.Height = (sender as Control).Height; } } #region 容器滚动条移动事件 void XSControl_MouseWheel(object sender, MouseEventArgs e) { XSControl_Scroll(sender, null); } void XSControl_Scroll(object sender, XtraScrollEventArgs e) { CurrentLable = GetMenu((sender as XtraScrollableControl).VerticalScroll.Value); } #endregion #region 添加锚点 PanelMenu LastAnchor; int LastAnchorIniHeight; /// <summary> /// 添加锚点 /// </summary> /// <param name="col">默认为控件的Top，Height,Text属性</param> /// <param name="LastControl">是否是最后一一个锚点，为了保证最后一个锚点定位在顶部，需要动态设置最后一个锚点的高度，如果最后一个锚点区域高度小于容器高度，则设置其高度为容器高度</param> public void AddAnchor(Control col, bool LastControl) { AddAnchor(col, col.Text, LastControl); } /// <summary> /// 添加锚点 /// </summary> /// <param name="col">默认为控件的Top，Height属性</param> /// <param name="Caption">如果Caption为空则取Col的Text属性</param> /// <param name="LastControl">是否是最后一一个锚点，为了保证最后一个锚点定位在顶部，需要动态设置最后一个锚点的高度，如果最后一个锚点区域高度小于容器高度，则设置其高度为容器高度</param> public void AddAnchor(Control col, string Caption, bool LastControl) { Label lbl = new Label() { AutoSize = false, Dock = System.Windows.Forms.DockStyle.Top, Location = new System.Drawing.Point(0, 0), /*lbl.Size = new System.Drawing.Size(219, 37);*/ Height = 37, TabIndex = 0, Text = Caption, TextAlign = System.Drawing.ContentAlignment.MiddleRight, Tag = col.Top.ToString() }; IniEventLable(lbl); if (LastControl) { LastAnchor = new PanelMenu(lbl, col); LastAnchorIniHeight = col.Height; lst.Add(LastAnchor); } else lst.Add(new PanelMenu(lbl, col)); MenuPan.Controls.Add(lbl); MenuPan.Controls.SetChildIndex(lbl, 0); } #endregion /// <summary> /// 根据滚动条位置获得对应的锚点空间 /// </summary> /// <param name="ScrollValue">滚动条的值</param> /// <returns></returns> public Label GetMenu(int ScrollValue) { Label lbl = null; foreach (PanelMenu menu in lst) { if (menu.Top <= ScrollValue && menu.Buttom > ScrollValue) lbl = menu.Label; } if (lbl == null) { return null; } return lbl; } /// <summary> /// 初始化锚点的事件 /// </summary> /// <param name="lbl"></param> void IniEventLable(Label lbl) { lbl.MouseEnter += lbl_MouseEnter; lbl.MouseLeave += lbl_MouseLeave; lbl.MouseClick += lbl_MouseClick; } #region 锚点单击 Label _CurrentLable; public Label CurrentLable { set { if (value == null) return; if (_CurrentLable == value) return; value.BackColor = Color.LightPink; if (_CurrentLable != null) _CurrentLable.BackColor = Color.Transparent; _CurrentLable = value; } get { return _CurrentLable; } //{ return CurrentLable; } } /// <summary> /// 鼠标点击 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> void lbl_MouseClick(object sender, MouseEventArgs e) { if (e.Button == MouseButtons.Left) { CurrentLable = sender as Label; XSControl.VerticalScroll.Value = int.Parse((sender as Label).Tag.ToString()) - CurrentLable.Top; } } /// <summary> /// 设置鼠标进入时背景色 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void lbl_MouseEnter(object sender, EventArgs e) { if ((sender as Label) != CurrentLable) (sender as Label).BackColor = Color.FromArgb(0xFF, 0xFF, 0x99); } /// <summary> /// 鼠标移出，还原背景色 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void lbl_MouseLeave(object sender, EventArgs e) { if ((sender as Label) != CurrentLable) (sender as Label).BackColor = Color.Transparent; } #endregion } public class PanelMenu { public PanelMenu(Label label, Control anchorContainer) { Label = label; AnchorContainer = anchorContainer; Top = anchorContainer.Top; } public PanelMenu(Label label, int top, int height) { Label = label; Top = top; Height = height; } /// <summary> /// 锚点定位的容器对象，通常是Panel /// </summary> public Control AnchorContainer { get; set; } /// <summary> /// 锚点，Lable /// </summary> public Label Label { get; set; } public int Top { get; set; } private int _height; public int Height { get { if (AnchorContainer != null) return AnchorContainer.Height; else return _height; } set { _height = value; } } public int Buttom { get { return Top + Height; } } }
PS：界面新建一个panel1，用于存放左边的导航列表，右边拖一个dev控件：xtraScrollableControl1
在Load里面新增如下代码
使用：
AnchorPanel APanel; private void Form3_Load(object sender, EventArgs e) { APanel = new AnchorPanel(panel1, xtraScrollableControl1); labelControl1.Text = groupControl6.Height.ToString(); if (groupControl6.Height < xtraScrollableControl1.Height) groupControl6.Height = xtraScrollableControl1.Height; panel1.Controls.Clear(); APanel.AddAnchor(groupControl1, false); APanel.AddAnchor(groupControl2, false); APanel.AddAnchor(groupControl3, false); APanel.AddAnchor(groupControl4, false); APanel.AddAnchor(groupControl5, false); APanel.AddAnchor(groupControl6, true); APanel.CurrentLable = APanel.GetMenu(0); }
Demo下载地址：https://github.com/GarsonZhang/JumpPanel