recordcount总返回-1

精彩编程与编程技巧-取得正确的 RecordCount 值...

精彩编程与编程技巧-取得正确的 RecordCount 值 ...

JAVA分页代码实例.doc

JAVA分页代码实例

mysql存储过程 在动态SQL内获取返回值的方法详解

本篇文章是对mysql存储过程在动态SQL内获取返回值进行了详细的分析介绍，需要的朋友参考下

datagridview 分页

/// /// 获取总页数 /// /// 总记录数 /// /// public static int GetPageCount(int recordcount, int page_size) { int pagecount = 0; if (recordcount % page_size == 0) pagecount = recordcount / page_size; else pagecount = (recordcount / page_size) + 1; return pagecount; } /**//// /// 获取分页数据 /// /// DATASET /// 每页记录数 /// 页索引 /// 总页数 /// public static DataView GetPagerForView(DataTable dt, int page_size, int pageindex,out string msg) { DataView dv = new DataView(); if (dt != null) { int recordCount = dt.Rows.Count; //总记录数 int page_sum = GetPageCount(recordCount, page_size); if (page_size < dt.Rows.Count)//kl2 :SQL查询函数返回的DATASET { if (page_size == 0)//text_intpase :判断用户设置的分页是否合法 page_size = 10; //recordCount = kl2.Tables[0].Rows.Count;//假设每页只显示1条数据,则共可以显示的页数:pagemark页 if (page_size < 1) { msg = "请将分页项设置在[1-" + dt.Rows.Count.ToString() + "]之间"; } msg = "共" + page_sum.ToString() + "页," + dt.Rows.Count.ToString() + "条";//page_num :lable DataTable page_table = new DataTable();//记录当前正在操作的是哪个表,全局变量,值由查询函数获取 for (int k = 0; k < dt.Columns.Count; k++) { page_table.Columns.Add(dt.Columns[k].ColumnName); } if (dt.Rows.Count != 0 && page_size < dt.Rows.Count) { page_table.Clear(); try //普通页面显示 { page_table.Clear(); for (int i = 0; i < page_size; i++) { page_table.Rows.Add(dt.Rows[i + (pageindex * page_size)].ItemArray); } } catch //最后不足一个页面的显示 { page_table.Clear(); try { for (int s = 0; s 0) { dgrvDic.AutoGenerateColumns = false; dgrvDic.DataSource = Public.CustomerPager.GetPagerForView(dt, 10, pageindex, out msg); toolStripLabel18.Text = msg; } } Code 分页事件#region　分页事件 private void toolStrip7_ItemClicked(object sender, ToolStripItemClickedEventArgs e) { if (e.ClickedItem.Tag != null) { this.Cursor = Cursors.WaitCursor; int _currentPageIndex = 1; DataTable dt = GetDicData(); int pagecount = 0; if (dt != null) pagecount = Public.CustomerPager.GetPageCount(dt.Rows.Count, 10); if (toolStripTextBox6.Text != "") { try { _currentPageIndex = Convert.ToInt32(toolStripTextBox6.Text); } catch { _currentPageIndex = 1; } } switch (e.ClickedItem.Tag.ToString()) { case "First": _currentPageIndex = 1; break; case "Prev": _currentPageIndex = _currentPageIndex - 1; break; case "Next": _currentPageIndex = _currentPageIndex + 1; break; case "Last": _currentPageIndex = pagecount; break; default: this.Cursor = Cursors.Default; break; } InitData(_currentPageIndex - 1); if (_currentPageIndex == 1) { toolStripTextBox6.Text = "1"; this.toolStripButton25.Enabled = false; this.toolStripButton26.Enabled = false; this.toolStripButton27.Enabled = true; this.toolStripButton28.Enabled = true; } else { if (_currentPageIndex = 1) { toolStripTextBox6.Text = _currentPageIndex.ToString(); this.toolStripButton25.Enabled = true; this.toolStripButton26.Enabled = true; this.toolStripButton27.Enabled = true; this.toolStripButton28.Enabled = true; } else if (_currentPageIndex == pagecount) { toolStripTextBox6.Text = pagecount.ToString(); this.toolStripButton25.Enabled = true; this.toolStripButton26.Enabled = true; this.toolStripButton27.Enabled = false; this.toolStripButton28.Enabled = false; } else { this.toolStripButton25.Enabled = false; this.toolStripButton26.Enabled = false; this.toolStripButton27.Enabled = false; this.toolStripButton28.Enabled = false; } } this.Cursor = Cursors.Default; } 84 #endregion

一个Asp.Net的显示分页方法 附加实体转换和存储过程 带源码下载

现在自己写的webform都不用服务器控件了，所以自己仿照aspnetpager写了一个精简实用的返回分页显示的html方法，其他话不说了，直接上代码