zoukankan      html  css  js  c++  java
  • GridView总结一:GridView自带分页及与DropDownList结合使用

    GridView自带的分页功能实现:

    要实现GrdView分页的功能
    操作如下:
    1、更改GrdView控件的AllowPaging属性为true。
    2、更改GrdView控件的PageSize属性为 任意数值(默认为10)
    3、更改GrdView控件的PageSetting->Mode为Numeric等(默认为Numeric)该属性为分页样式。
    GridView属性设置好了,从页面上也能看到分页样式。

    现在开始实现分页的功能:

    1、在<<asp:GridView ID=......>后添加,OnPageIndexChanging="GridView1_PageIndexChanging"
    2、在对应的aspx.cs中添加:
        protected void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e)
        {
            GridView1.PageIndex = e.NewPageIndex;
            InitPage(); //重新绑定GridView数据的函数
        }

    参考代码:

    <%@ Page Language="C#" AutoEventWireup="true" CodeFile="gridview_zidaifenye.aspx.cs" Inherits="gridview_zidaifenye" %>
    
    <!DOCTYPE html>
    
    <html xmlns="http://www.w3.org/1999/xhtml">
    <head runat="server">
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
        <title></title>
    </head>
    <body>
        <form id="form1" runat="server">
        <div>
         <asp:GridView ID="GridView1" runat="server" AllowPaging="True" AllowSorting="True"
                AutoGenerateColumns="False" DataKeyNames="ID" PagerSettings-Mode="Numeric"
                OnRowDataBound="GridView1_RowDataBound" PageSize="5" OnPageIndexChanging="GridView1_PageIndexChanging">
                <Columns>
                    <asp:BoundField DataField="ID" HeaderText="ID" InsertVisible="False" ReadOnly="True"
                        SortExpression="ID" />
                    <asp:BoundField DataField="Name" HeaderText="Name" SortExpression="Name" />
                    <asp:BoundField DataField="Stock" HeaderText="Stock" SortExpression="Stock" />
                </Columns>
            </asp:GridView>
            每页显示<asp:DropDownList ID="DropDownList1" runat="server" AutoPostBack="True" OnSelectedIndexChanged="DropDownList1_SelectedIndexChanged">
                <asp:ListItem>5</asp:ListItem>
                <asp:ListItem>10</asp:ListItem>
                <asp:ListItem>15</asp:ListItem>
            </asp:DropDownList>
            条记录 &nbsp; &nbsp; 
            <asp:Label ID="lblMsg" runat="server"></asp:Label>
        </div>
        </form>
    </body>
    </html>

    后台代码:

    using System;
    using System.Collections.Generic;
    using System.Data;
    using System.Data.SqlClient;
    using System.Linq;
    using System.Web;
    using System.Web.UI;
    using System.Web.UI.WebControls;
    
    public partial class gridview_zidaifenye : System.Web.UI.Page
    {
        DBAccess db = new DBAccess();
        protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                // gvProduct.DataSource = getData();
                // gvProduct.DataBind();
                BindGrid();
            }
        }
        public void BindGrid()
        {
            SqlCommand comm = db.CreateCommand("select * from product p,Uuser u where p.userid=u.id");
            SqlDataAdapter sda = new SqlDataAdapter();
            sda.SelectCommand = comm;
            DataSet ds = new DataSet();
            sda.Fill(ds,"Datatable");
            DataView dv = ds.Tables[0].DefaultView;
    
            GridView1.DataSource = dv;
            GridView1.DataBind();
        }
        protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)
        {
            GridView1.PageSize = int.Parse(DropDownList1.SelectedValue);
            GridView1.PageIndex = 0;
            BindGrid(); //GridView1.DataBind();
        }
        protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
        {
            lblMsg.Text = "当前页为第" + (GridView1.PageIndex + 1).ToString() + "页,共" + (GridView1.PageCount).ToString() + "页";
        }
    
        protected void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e)
        {
            GridView1.PageIndex = ((GridViewPageEventArgs)e).NewPageIndex;
            BindGrid(); //重新绑定GridView数据的函数
        }
    }

       总结下,方便以后用到。

  • 相关阅读:
    《快速开发》通过Maven创建WebService项目Hello World!
    《常见问题集》Eclipse
    《常见问题集》Maven
    Eclipse + Jersey 发布RESTful WebService(一)了解Maven和Jersey,创建一个WS项目(成功!)
    Java2WSDL 和 WSDL2Java(Axis)
    Eclipse + Apache Axis2 发布RESTful WebService(一)基础知识
    Eclipse + Apache Axis2 发布SOAP WebService(三)第一个程序Hello Axis2 SOAP!
    Eclipse + Apache Axis2 发布RESTful WebService(三)第一个程序Hello Axis2 !(未成功)
    Eclipse + Apache Axis2 发布RESTful WebService(二)配置开发环境
    学习 JSP:第三步 JSP基础(未完)
  • 原文地址:https://www.cnblogs.com/jycboy/p/5172380.html
Copyright © 2011-2022 走看看