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 System.Collections; namespace XjxMobilenursing { public partial class PagerCtrl : UserControl { public PagerCtrl() { InitializeComponent(); } [Browsable(true)] [Category("页面记录数")] [Description("显示页面记录数")] [DefaultValue(typeof(int), "10")] public int PageSize{ get;set; } public Hashtable condition { get; set; }//查询条件 private int totalCount = 0;//总记录数 public int TotalCount { get { return totalCount; } set { totalCount = value; if (totalCount <= 0) totalCount = 0; if (totalCount <= PageSize) { lkbNextPage.Enabled = false; } else { lkbNextPage.Enabled = true; } lkbPrePage.Enabled = false; lblPageSize.Text = PageSize.ToString(); lblTotalCount.Text = totalCount.ToString(); lblPageNum.Text = PageNum.ToString(); } } public int BeginPage//起始记录 { get { return (currentPage - 1) * PageSize + 1; } } public int EndPage { //结束记录 get { if ((CurrentPage < PageNum) || TotalCount % PageSize == 0) { return BeginPage + PageSize - 1; } return BeginPage + (TotalCount % PageSize) - 1; } } private int currentPage = 1;//当前第几页 public int CurrentPage { get { return currentPage; } set { currentPage = value; lblCurrentPage.Text = currentPage.ToString(); } } public int PageNum { get { int pageNum = 0;//总的页数 if (PageSize > 0) { pageNum = (totalCount % PageSize == 0) ? (totalCount / PageSize) : (totalCount / PageSize) + 1; } return pageNum; } } public delegate void LoadDataSouceDelegate(Hashtable condition); public event LoadDataSouceDelegate LoadDataSouce; private void lkbFirstPage_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e) {//首页 CurrentPage = 1; LoadDataSouce(condition); lkbPrePage.Enabled = false; if (TotalCount > PageSize) { lkbNextPage.Enabled = true; } } private void lkbPrePage_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e) {//上一页 CurrentPage--; LoadDataSouce(condition); lkbNextPage.Enabled = true; if (CurrentPage <= 1) { CurrentPage = 1; lkbPrePage.Enabled = false; } else { lkbPrePage.Enabled = true; } } private void lkbNextPage_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e) {//下一页 CurrentPage++; LoadDataSouce(condition); lkbPrePage.Enabled = true; if (CurrentPage < PageNum) { lkbNextPage.Enabled = true; } else { CurrentPage = PageNum; lkbNextPage.Enabled = false; } } private void lkbLastPage_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e) {//尾页 CurrentPage = PageNum; LoadDataSouce(condition); lkbNextPage.Enabled = false; if (TotalCount > PageSize) { lkbPrePage.Enabled = true; } } private void btnGo_Click(object sender, EventArgs e) {//跳转 if (!StringCommon.IsNumeric(txtWherePage.Text.Trim())) { MessageBox.Show("请输入数字"); return; } int goWherePage = StringCommon.ToInt32Value(txtWherePage.Text.Trim(),1); if (goWherePage <= 0 || goWherePage > PageNum) { MessageBox.Show(string.Format("请输入1~{0}之间的数",PageNum)); return; } CurrentPage = goWherePage; LoadDataSouce(condition); if (CurrentPage <= 1) { lkbPrePage.Enabled = false; } else { lkbPrePage.Enabled = true; } if (CurrentPage < PageNum) { lkbNextPage.Enabled = true; } else { lkbNextPage.Enabled = false; } } } }
DataGridView实现分页
时间: 2024-10-28 23:52:44