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asp.net连接数据库读取数据示例分享
摘要:webconfig配置:复制代码代码如下:前台aspx:复制代码代码如下:DBMSSQL后台代码:复制代码代码如下:usingSystem;...

webconfig配置:

复制代码 代码如下:

<connectionStrings>

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

</connectionStrings>

前台aspx:

复制代码 代码如下:

<%@ 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:

复制代码 代码如下:

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;

}

}

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