效果展示：

自定义控件源代码：

using System;
using System.Drawing;
using System.Windows.Forms;
using static NPOI.HSSF.Util.HSSFColor;namespace TestSystemManager
{public class PaginationControl : UserControl{// 事件：当页码切换时触发public event EventHandler<int> PageChanged = null!;// 当前页码private int _currentPage = 1;public int CurrentPage{get => _currentPage;set{if (value >= 1 && value <= TotalPages){_currentPage = value;Console.WriteLine($"CurrentPage updated to: {_currentPage}"); // 调试输出UpdatePagination();}}}// 总页数private int _totalPages = 1;public int TotalPages{get => _totalPages;set{_totalPages = value > 0 ? value : 1;UpdatePagination();}}// 布局面板private FlowLayoutPanel flowLayoutPanel;// 每页显示的最大按钮数量private int MaxButtons => this.Width / 50; // 按钮宽度约50像素// 分页控件初始化public PaginationControl(){this.Height = 60; // 增加高度this.AutoSize = true;// 初始化 FlowLayoutPanelflowLayoutPanel = new FlowLayoutPanel{Dock = DockStyle.Fill,AutoSize = true,FlowDirection = FlowDirection.LeftToRight,WrapContents = false,Padding = new Padding(10)};this.Controls.Add(flowLayoutPanel);// 响应控件大小调整this.Resize += (s, e) => UpdatePagination();}// 更新分页显示private void UpdatePagination(){flowLayoutPanel.Controls.Clear(); // 清除控件if (TotalPages <= 1)return;// 计算需要显示的页码范围int maxButtons = MaxButtons; // 最多显示按钮数量int startPage = Math.Max(1, CurrentPage - maxButtons / 2);int endPage = Math.Min(TotalPages, startPage + maxButtons - 1);if (endPage - startPage + 1 < maxButtons){startPage = Math.Max(1, endPage - maxButtons + 1);}// 调试输出页码范围Console.WriteLine($"startPage: {startPage}, endPage: {endPage}, CurrentPage: {CurrentPage}");// 添加省略号前的页码按钮if (startPage > 1){flowLayoutPanel.Controls.Add(CreateButton("1", true, () => CurrentPage = 1));if (startPage > 2){// 添加“上一页”按钮flowLayoutPanel.Controls.Add(CreateButton("<<", CurrentPage > 1, () => CurrentPage = Math.Max(1, CurrentPage - 1)));}}// 添加可见的页码按钮for (int i = startPage; i <= endPage; i++){var isCurrent = i == CurrentPage;flowLayoutPanel.Controls.Add(CreateButton(i.ToString(), !isCurrent, () => CurrentPage = i));}// 添加省略号后的页码按钮if (endPage < TotalPages){if (endPage < TotalPages - 1){// 添加“下一页”按钮flowLayoutPanel.Controls.Add(CreateButton(">>", CurrentPage < TotalPages, () => CurrentPage = Math.Min(TotalPages, CurrentPage + 1)));}flowLayoutPanel.Controls.Add(CreateButton(TotalPages.ToString(), true, () => CurrentPage = TotalPages));}flowLayoutPanel.Invalidate(); // 强制刷新}// 创建按钮private Krypton.Toolkit.KryptonButton CreateButton(string text, bool isEnabled, Action onClick){var button = new Krypton.Toolkit.KryptonButton{Text = text,Enabled = isEnabled,Width = 40, // 设置按钮宽度Height = 30, // 设置按钮高度Margin = new Padding(5),ForeColor = isEnabled ? Color.Black : Color.Gray,BackColor = isEnabled ? Color.White : Color.LightGray,Tag = text};button.StateCommon.Back.Color1 = Color.FromArgb(255, 224, 192);button.StateCommon.Back.Color2 = Color.FromArgb(128, 255, 128);if (isEnabled){button.Click += (s, e) =>{// 确保事件逻辑只针对当前按钮if (button.Tag.ToString() != ">>" && button.Tag.ToString() != "<<"){int clickedPage = int.Parse(button.Tag.ToString()!);CurrentPage = clickedPage;PageChanged?.Invoke(this, CurrentPage);}};}return button;}// 创建省略号标签private Label CreateEllipsis(){return new Label{Text = "...",AutoSize = true,Margin = new Padding(5),TextAlign = ContentAlignment.MiddleCenter,ForeColor = Color.Gray};}}
}

UI窗体实现分页控件展示代码：

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;namespace TestSystemManager
{public partial class DataBaseDataManager_TestData_WinFrm : Form{private PaginationControl pagination = null!;private string testWebApi = string.Empty;public DataBaseDataManager_TestData_WinFrm(string testWebApi){InitializeComponent();this.testWebApi = testWebApi;//创建分页控件this.pagination = new PaginationControl {TotalPages = 93, // 设置总页数Dock = DockStyle.Bottom // 自动停靠在底部};// 绑定 PageChanged 事件this.pagination.PageChanged += Pagination_PageChanged!;// 添加到窗体this.splitContainer2.Panel2.Controls.Add(this.pagination);// 响应父容器大小调整this.splitContainer2.Panel2.Resize += (s, e) =>{this.pagination.Width = this.splitContainer2.Panel2.Width;};}#region 处理页码切换事件private void Pagination_PageChanged(object sender, int currentPage){MessageBox.Show($"您单击了第 {currentPage} 页", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);}#endregion}
}