asp.net 分页显示数据表的数据的代码


            实现代码如下： 复制代码 代码如下:using System; using System.Collections; using System.Configuration; using System.Data; using System.Linq; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.HtmlControls; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Xml.Linq; using System.Drawing; namespace ShowData4 { public partial class _Default : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { GridView1.PageSize = 5; /*GridView控件在每页上显示的记录数目*/ if (GridView1.Rows.Count != 0) /*当记录数只显示一页时加载分页标签*/ { Control table = GridView1.Controls[0]; int count = table.Controls.Count; table.Controls[count - 1].Visible = true; } } protected void GridView1_RowCreated(object sender, GridViewRowEventArgs e) { if (e.Row.RowType == DataControlRowType.Pager) /*显示页导航控件的行*/ { /*创建在网页上显示超链接的按钮*/ LinkButton Button_IndexFirst = new LinkButton(); LinkButton Button_IndexLast = new LinkButton(); LinkButton Button_IndexNext = new LinkButton(); LinkButton Button_IndexPrevious = new LinkButton(); /*添加超链接按钮到页导航行*/ e.Row.Controls[0].Controls.Add(Button_IndexFirst); e.Row.Controls[0].Controls.Add(new LiteralControl(("  "))); /*分页按钮之间用2个空格隔开*/ e.Row.Controls[0].Controls.Add(Button_IndexPrevious); e.Row.Controls[0].Controls.Add(new LiteralControl(("  "))); e.Row.Controls[0].Controls.Add(Button_IndexNext); e.Row.Controls[0].Controls.Add(new LiteralControl(("  "))); e.Row.Controls[0].Controls.Add(Button_IndexLast); Button_IndexFirst.Text = "第一页"; Button_IndexFirst.CommandName = "first"; Button_IndexFirst.Click += new EventHandler(PageButtonClick); Button_IndexPrevious.Text = "上一页"; Button_IndexPrevious.CommandName = "previous"; Button_IndexPrevious.Click += new EventHandler(PageButtonClick); Button_IndexNext.Text = "下一页"; Button_IndexNext.CommandName = "next"; Button_IndexNext.Click += new EventHandler(PageButtonClick); Button_IndexLast.Text = "最后一页"; Button_IndexLast.CommandName = "last"; Button_IndexLast.Click += new EventHandler(PageButtonClick); if (GridView1.PageIndex == 0) { if (GridView1.PageCount > 1) /*记录数所需页数大于一页*/ { Button_IndexFirst.Enabled = false; Button_IndexPrevious.Enabled = false; } else /*记录数只需一页*/ { Button_IndexFirst.Enabled = false; Button_IndexPrevious.Enabled = false; Button_IndexNext.Enabled = false; Button_IndexLast.Enabled = false; } } else if (GridView1.PageIndex == GridView1.PageCount - 1) { Button_IndexNext.Enabled = false; Button_IndexLast.Enabled = false; } else if (GridView1.PageCount <= 0) { Response.Write("数据表中没有数据！"); Button_IndexFirst.Enabled = false; Button_IndexPrevious.Enabled = false; Button_IndexNext.Enabled = false; Button_IndexLast.Enabled = false; } } } protected void PageButtonClick(object sender, EventArgs e) { LinkButton clickedButton = ((LinkButton)sender); if (clickedButton.CommandName == "first") /*点击的是“第一页”按钮，页索引为0*/ { GridView1.PageIndex = 0; } else if (clickedButton.CommandName == "next") /*点击的是“下一页”按钮，页索引加1*/ { if (GridView1.PageIndex < GridView1.PageCount - 1) { GridView1.PageIndex += 1; } } else if (clickedButton.CommandName == "previous") /*点击的是“上一页”按钮，页索引如果大于等于1则减1*/ { if (GridView1.PageIndex >= 1) { GridView1.PageIndex -= 1; } } else if (clickedButton.CommandName == "last") /*点击的是“最后一页”按钮*/ { GridView1.PageIndex = GridView1.PageCount - 1; } } } }