GridView的事件PageIndexChanged,它的用法在单击某一页导航按钮时,但在GridView控件处理分页操作之后,讲引发PageIndexChanged事件.这使你可以提供一个这样的事件处理方法,即每次发生此事件时执行一个自定义分页操作. 如果要确定用户选择的页面的索引,请使用GridView控件的PageIndex属性.PageIndex属性用来获取所显示页面的从零开始的索引.当启用分页功能时(通过设置AllowPaging属性为true). 下面的代码使用PageIndexChanged事件显示用户从页导航行中选择的页码. <%@ Page language="C#" %><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <script runat="server"> void CustomersGridView_DataBound(Object sender, EventArgs e) { if (!IsPostBack) { //当页面第一次加载的时候,调用DisplayCurrentPage来显示当前页数. DisplayCurrentPage(); } } void CustomersGridView_PageIndexChanged(Object sender, EventArgs e) { //当用户导航到不同页面的时候,调用DisplayCurrentPage来显示当前页数 DisplayCurrentPage(); } void DisplayCurrentPage() { // 计算当前页数. int currentPage = CustomersGridView.PageIndex + 1;//PageIndex属性设置为从零开始,小于零将产生ArgumentOutOfRangeException // 显示当前页数 Message.Text = "页 " + currentPage.ToString() + " / " + CustomersGridView.PageCount.ToString() + "."; } </script> <html xmlns="http://www.w3.org/1999/xhtml" ><head id="Head1" runat="server"> <title>GridView控件事件-PageIndexChanged</title></head> <body> <form id="Form1" runat="server"> <h3>GridView PageIndexChanged Example</h3> <asp:label id="Message" forecolor="Red" runat="server"/> <br/> <asp:gridview id="CustomersGridView" datasourceid="CustomersSource" autogeneratecolumns="true" emptydatatext="No data available." allowpaging="true" OnDataBound="CustomersGridView_DataBound" onpageindexchanged="CustomersGridView_PageIndexChanged" runat="server" PageSize="5"> <pagerstyle backcolor="LightBlue"/> </asp:gridview> <asp:sqldatasource id="CustomersSource" SelectCommand="SELECT [pkey], [departmentName], [previousName], [remark], [isSubCompany] FROM [DEPARTMENT]" ConnectionString="<%$ ConnectionStrings:EHRConnectionString %>" runat="server"/> </form> </body></html>
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