Code Behind

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

namespace InventoryManagementSys
{
    public partial class CategoryDetails : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                if (Session["user"] != null)
                {
                    Category catObj = new CategoryLogic().SelectByID(Convert.ToInt32(Request.QueryString["ID"]));

                    DataTable dt_prod_count = new ProductLogic().CountProductsInCategory(Convert.ToInt32(Request.QueryString["ID"]));

                    txtTotalProdInCat.Text = dt_prod_count.Rows[0]["Count_Products"].ToString();

                    lblName.Text = catObj.CategoryName;
                    txtName.Text = catObj.CategoryName;
                    txtDesc.Text = catObj.CategoryDescription;

                    imgCatPic.ImageUrl = catObj.CategoryPhoto;

                    if (catObj.HeightWidth.Equals("Yes"))
                    {
                        rblYN.SelectedIndex = 0;
                    }
                    else
                    {
                        rblYN.SelectedIndex = 1;
                    }

                    txtDateCreated.Text = catObj.DateCreated.ToString();
                    txtDateUpdated.Text = catObj.DateUpdated.ToString();
                }
            }
            else
            {
                Response.Redirect("CategoryDetails.aspx?ID=" + Convert.ToInt32(Request.QueryString["ID"]));
            }

        }

        protected void btnCatPicUpdate_Click(object sender, EventArgs e)
        {

        }

        protected void btnUpdateDetails_Click(object sender, EventArgs e)
        {
            Category catObj = new Category();

            catObj.CategoryName = txtName.Text;
            catObj.CategoryDescription = txtDesc.Text;
            catObj.HeightWidth = rblYN.SelectedValue;
            catObj.CategoryID = Convert.ToInt32(Request.QueryString["ID"]);

            int upd_result = new CategoryLogic().Update(catObj);

            if (upd_result > 0)
            {
                catObj.DateUpdated = DateTime.Now;

                int upd_date = new CategoryLogic().UpdateDate(catObj);

                if (upd_date > 0)
                {
                    ScriptManager.RegisterStartupScript(btnUpdateDetails, btnUpdateDetails.GetType(), "key", string.Format("toastr['success']('{0} - was updated successfully!')", catObj.CategoryName), true);
                }
                else
                {
                    ScriptManager.RegisterStartupScript(btnUpdateDetails, btnUpdateDetails.GetType(), "key", string.Format("toastr['error']('There was some error while updating record for - {0} - Category! Please try again!')", catObj.CategoryName), true);
                }
            }
            else
            {
                ScriptManager.RegisterStartupScript(btnUpdateDetails, btnUpdateDetails.GetType(), "key", string.Format("toastr['error']('There was some error while updating record for - {0} - Category! Please try again!')", catObj.CategoryName), true);
            }
        }
    }
}