PatientViewMedicalSchemeDetails.aspx.cs

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.Data;
using System.Configuration;

public partial class PatientViewMedicalSchemeDetails : System.Web.UI.Page
{
    SqlConnection con;
    SqlCommand cmd;
    SqlDataReader rs;
    SqlDataAdapter adp;
    DataTable dt;

    void bindgrid()
    {
        adp = new SqlDataAdapter("select * from mstable ", con);
        
        dt = new DataTable();
        adp.Fill(dt);
        GridView1.DataSource = dt;
        GridView1.DataBind();
    }
    protected void Page_Load(object sender, EventArgs e)
    {
        try
        {
            Label1.Text = "";
            Menu m5 = (Menu)Master.FindControl("Menu5");
            m5.Visible = true;
            con = new SqlConnection(ConfigurationManager.ConnectionStrings["connection"].ConnectionString);
            con.Open();
            if (!IsPostBack)
            {
                if (Session["PID"] != null)
                {
                    TextBox1.Text = Session["PID"].ToString();                  
                    bindgrid();
                }
            }

        }
        catch (Exception ex)
        {
            Label1.Text = ex.Message;
        }
    }
}