110 lines
2.8 KiB
C#
110 lines
2.8 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Web;
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using System.Web.UI;
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using System.Web.UI.WebControls;
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using System.Data;
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using System.Text;
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namespace FineUI.Examples.grid
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{
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public partial class grid_paging_database_sorting : PageBase
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{
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protected void Page_Load(object sender, EventArgs e)
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{
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if (!IsPostBack)
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{
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BindGrid();
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}
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}
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#region BindGrid
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private void BindGrid()
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{
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// 1.设置总项数（特别注意：数据库分页一定要设置总记录数RecordCount）
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Grid1.RecordCount = GetTotalCount();
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// 2.获取当前分页数据
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DataTable table = GetPagedDataTable();
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// 3.绑定到Grid
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Grid1.DataSource = table;
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Grid1.DataBind();
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}
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/// <summary>
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/// 模拟返回总项数
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/// </summary>
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/// <returns></returns>
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private int GetTotalCount()
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{
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return DataSourceUtil.GetDataTable2().Rows.Count;
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}
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/// <summary>
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/// 模拟数据库分页
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/// </summary>
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/// <returns></returns>
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private DataTable GetPagedDataTable()
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{
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int pageIndex = Grid1.PageIndex;
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int pageSize = Grid1.PageSize;
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string sortField = Grid1.SortField;
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string sortDirection = Grid1.SortDirection;
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DataTable table2 = DataSourceUtil.GetDataTable2();
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DataView view2 = table2.DefaultView;
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view2.Sort = String.Format("{0} {1}", sortField, sortDirection);
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DataTable table = view2.ToTable();
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DataTable paged = table.Clone();
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int rowbegin = pageIndex * pageSize;
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int rowend = (pageIndex + 1) * pageSize;
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if (rowend > table.Rows.Count)
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{
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rowend = table.Rows.Count;
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}
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for (int i = rowbegin; i < rowend; i++)
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{
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paged.ImportRow(table.Rows[i]);
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}
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return paged;
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}
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#endregion
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#region Events
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protected void Button1_Click(object sender, EventArgs e)
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{
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labResult.Text = HowManyRowsAreSelected(Grid1);
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}
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protected void Grid1_PageIndexChange(object sender, GridPageEventArgs e)
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{
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Grid1.PageIndex = e.NewPageIndex;
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BindGrid();
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}
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protected void Grid1_Sort(object sender, GridSortEventArgs e)
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{
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Grid1.SortDirection = e.SortDirection;
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Grid1.SortField = e.SortField;
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BindGrid();
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}
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#endregion
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}
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}
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