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Tuesday, February 2, 2016
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How to use ExecuteScalar method in ASP.NET c#

11:06 PMTuesday, February 2, 2016
This method returns integer type value, actually, it returns top tuple no of record from the table. Here I will provide you an example of ExecuteScalar ( )  method. By using this example you can retrieve top tuple no from the record. 

Source Code

<!DOCTYPE html>

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
    
        <asp:Label ID="Label1" runat="server"></asp:Label>
        <br />
        <asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="Get Record" />
    
    </div>
    </form>
</body>
</html>

CodeBehind Code

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

public partial class GetfirstRecord : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {

    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        SqlConnection con = new SqlConnection();
        con.ConnectionString = ConfigurationManager.ConnectionStrings["ConnectionStringtr"].ToString();
        con.Open();

        SqlCommand cmd=new SqlCommand();
        cmd.CommandText="select * from [user_table]";
        cmd.Connection=con;
        int a = Convert.ToInt32(cmd.ExecuteScalar());
        Label1.Text = a.ToString();
    }
}

Code Generates the following output:

How to use ExecuteScalar method in ASP.NET c#

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