UPDATE RECORD OF DATABASE

CodeFile

using System;

using System.Collections;

using System.Configuration;

using System.Data;

using System.Data.SqlClient ;

using System.Linq;

using System.Web;

using System.Web.Security;

using System.Web.UI;

using System.Web.UI.HtmlControls;

using System.Web.UI.WebControls;

using System.Web.UI.WebControls.WebParts;

using System.Xml.Linq;

public partial class UpdateRecord : System.Web.UI.Page

{

    protected void Page_Load(object sender, EventArgs e)

    {

    }

    protected void Button1_Click(object sender, EventArgs e)

    {

        SqlConnection con = new SqlConnection("Trusted_Connection=true; DataBase=Praveen_DataBase");

        SqlCommand cmd = new SqlCommand("update Table1 set Name=@Name,Address=@Address,Course=@Course where Roll=@Roll ", con);

        SqlParameter obj1 = new SqlParameter("@Name", DbType.StringFixedLength);

        obj1.Value = TextBox1.Text;

        cmd.Parameters.Add(obj1);

        SqlParameter obj2 = new SqlParameter("@Address", DbType.StringFixedLength);

        obj2.Value = TextBox2.Text;

        cmd.Parameters.Add(obj2);

        SqlParameter obj3 = new SqlParameter("@Course", DbType.StringFixedLength);

        obj3.Value = TextBox3.Text;

        cmd.Parameters.Add(obj3);

        SqlParameter obj4 = new SqlParameter("@Roll", DbType.Int32.ToString());

        obj4.Value = TextBox4.Text;

        cmd.Parameters.Add(obj4);

        con.Open();

        cmd.ExecuteNonQuery();

        Label1.Text = "Record updated";

        con.Close();

    }

}