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Sunday, 23 May 2021

sqlconnection sqldatatadapter c# asp.net | ado.net sqlconnection and sqldataadapter select command




Detail view of SQLCONNECTION, SQLDATAADAPTER and datatable all in one.









<%@ Page Language="C#" AutoEventWireup="true" CodeFile="AdoNet-SqlConnect-SqlAdapter.aspx.cs" Inherits="AdoNet_SqlConnect_SqlAdapter" %>


<!DOCTYPE html>


<html xmlns="http://www.w3.org/1999/xhtml">

<head runat="server">

    <title></title>

</head>

<body>

    <form id="form1" runat="server">

    <div>

        <asp:GridView ID="GridView1" runat="server"></asp:GridView>

    </div>

    </form>

</body>

</html>





codebehind c# code

using System;

using System.Collections.Generic;

using System.Configuration;

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 AdoNet_SqlConnect_SqlAdapter : System.Web.UI.Page

{

    protected void Page_Load(object sender, EventArgs e)

    {

        if(!IsPostBack)

        {

            string ConString = ConfigurationManager.ConnectionStrings["dbLearningConnectionString"].ToString() ;

            SqlConnection con = new SqlConnection(ConString);

            con.Open();

            SqlDataAdapter da = new SqlDataAdapter("Select * From dbFriends", con);

            DataTable dt = new DataTable();

            da.Fill(dt);

            con.Close();

            GridView1.DataSource = dt;

            GridView1.DataBind();

        }

    }

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