asp.net 學習筆記從sql中取數據而且綁定到 gridView

時間 2019-12-06

標籤 asp.net asp 學習筆記 sql 數據而且綁定 gridview 欄目 ASP 简体版

原文原文鏈接

aspx文件：
html

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="gridviewsort.aspx.cs" Inherits="gridviewsort" %>

<!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="cityGridView" runat="server" AllowPaging="true" AllowSorting="true" AutoGenerateColumns="false" OnPageIndexChanging="cityGridView_PageIndexChanging" OnSelectedIndexChanged="cityGridView_SelectedIndexChanged" >
            <Columns>
                <asp:BoundField DataField="cityID" HeaderText="城市ID" SortExpression="cityID" />
                <asp:BoundField DataField="cityName" HeaderText="城市名" SortExpression="cityName" />
                <asp:BoundField DataField="proID" HeaderText="父ID" SortExpression="proID" />
            </Columns>
        </asp:GridView>
    </div>
    </form>
</body>
</html>

cs文件
sql

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using System.Data.SqlClient;


public partial class gridviewsort : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        ViewState["cityName"] = "cityName";
        ViewState["cityID"] = "cityID";
        gridViewBind();
    }
    protected void cityGridView_PageIndexChanging(object sender, GridViewPageEventArgs e)
    {

    }
    protected void cityGridView_SelectedIndexChanged(object sender, EventArgs e)
    {

    }
    protected void gridViewBind()
    {
        /*
         * 創建數據庫鏈接
         * 首先在頭部引入DATA包
         * using System.Data;
         * using System.Data.SqlClient;
         */
        SqlConnection dataBaseCon = new SqlConnection("server=ZHOU-COMPUTER;database=Test;UId=mike;password=a03060910");
        //配置sql語句
        string sqlStr = "select * from [dbo].[City]";
        //實例化SqlDataAdapter sql數據適配器對象
        SqlDataAdapter da = new SqlDataAdapter(sqlStr, dataBaseCon);
        //實例化 DataSet 數據集 這個數據集會綁定在gridview上
        DataSet data = new DataSet();
        //向數據集中fill（填入）數據 da填入data
        da.Fill(data,"table");
        //將填好數據的數據集data 綁定到gridView空間上
        this.cityGridView.DataSource = data;
        this.cityGridView.DataBind();

    }
}