GeneralLayout.master.cs

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 GeneralLayout : System.Web.UI.MasterPage
{
    protected void Page_Load(object sender, EventArgs e)
    {
        BindCartNumber();
        BindCategories();
        if (Session["USERNAME"] != null)
        {
            btnSignup.Visible = false;
            btnSignin.Visible = false;
            btnSignOut.Visible = true;
        }
        else
        {
            btnSignup.Visible = true;
            btnSignin.Visible = true;
            btnSignOut.Visible = false;
        }
    }

    public void BindCartNumber()
    {
        if (Request.Cookies["CartPID"] != null)
        {
            string CookiePID = Request.Cookies["CartPID"].Value.Split('=')[1];
            string[] ProductArray = CookiePID.Split(',');
            int ProductCount = ProductArray.Length;
            pCount.InnerText = ProductCount.ToString();
        }
        else
        {
            pCount.InnerText = 0.ToString();
        }
    }

    protected void btnSignOut_Click(object sender, EventArgs e)
    {
        Session["USERNAME"] = null;
        Response.Redirect("~/Default.aspx");
    }

    public void BindCategories()
    {
        String CS = ConfigurationManager.ConnectionStrings["MyDatabaseConnectionString1"].ConnectionString;
        using (SqlConnection con = new SqlConnection(CS))
        {
            using (SqlCommand cmd = new SqlCommand("select * from tblCategories", con))
            {
                cmd.CommandType = CommandType.Text;
                using (SqlDataAdapter sda = new SqlDataAdapter(cmd))
                {
                    DataTable dtBrands = new DataTable();
                    sda.Fill(dtBrands);
                    rptCategory.DataSource = dtBrands;
                    rptCategory.DataBind();
                }

            }
        }
    }

    protected void OnItemDataBound(object sender, RepeaterItemEventArgs e)
    {
        if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
        {
            string catId = (e.Item.FindControl("hfCatId") as HiddenField).Value;
            Repeater rptSubCategories = e.Item.FindControl("rptSubCategories") as Repeater;

            String CS = ConfigurationManager.ConnectionStrings["MyDatabaseConnectionString1"].ConnectionString;
            using (SqlConnection con = new SqlConnection(CS))
            {
                using (SqlCommand cmd = new SqlCommand(string.Format("SELECT * FROM tblSubCategories WHERE MainCatID='{0}'", catId), con))
                {
                    cmd.CommandType = CommandType.Text;
                    using (SqlDataAdapter sda = new SqlDataAdapter(cmd))
                    {
                        DataTable dtBrands = new DataTable();
                        sda.Fill(dtBrands);
                        rptSubCategories.DataSource = dtBrands;
                        rptSubCategories.DataBind();
                    }

                }
            }
        }
    }
}