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asp.net连接数据库读取数据示例分享

发布时间：2023-02-27 13:13:30 来源：互联网

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我和你，或许分开才是最好的选择，那些曾经的过客，就当做最美丽的风景线，在以后的以后，我会好好坚强。

webconfig配置:


<connectionStrings>
<add name="MSSQL" connectionString="Data Source=localhost;Initial Catalog=test;User ID=sa;password=sa;" providerName="System.Data.SqlClient"/>
</connectionStrings>

前台aspx:


<%@ Page Language="C#" AutoEventWireup="true" CodeFile="DB.aspx.cs" Inherits="DB" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
 <title>DB</title>
</head>
<body>
 <form id="form1" runat="server">
 <div> 
 MS SQL<asp:GridView ID="GridView1" runat="server">
 </asp:GridView>
 </div>
 </form>
</body>
</html>

后台代码：


using System;
using System.Collections.Generic;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using System.Data.Common;//記得要using
using System.Configuration;
public partial class DB : System.Web.UI.Page
{
 protected void Page_Load(object sender, EventArgs e)
 {
 DataSet dsMSSQL = GetDataSet("select * from [Table]", "MSSQL");
 this.GridView1.DataSource = dsMSSQL;
 this.GridView1.DataBind();
 }
 protected DataSet GetDataSet(string SqlCommand,string DB)
 {
 DbProviderFactory dbProviderFactory = DbProviderFactories.GetFactory(ConfigurationManager.ConnectionStrings[DB].ProviderName);
 DbConnection dbConnection = dbProviderFactory.CreateConnection();
 dbConnection.ConnectionString = ConfigurationManager.ConnectionStrings[DB].ConnectionString;
 DataSet ds = new DataSet();
 DbCommand dbCommand = dbProviderFactory.CreateCommand();
 dbCommand.Connection = dbConnection;
 DbDataAdapter dbDataAdapter = dbProviderFactory.CreateDataAdapter();
 dbCommand.CommandText = SqlCommand;
 dbDataAdapter.SelectCommand = dbCommand;
 dbDataAdapter.Fill(ds);
 return ds;
 }
}