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Cart.aspx.cs
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Cart.aspx.cs
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using System.Data.SqlClient;
using System.Configuration;
namespace WebApplication1
{
public partial class Cart : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
DataTable dt = new DataTable();
DataRow dr;
dt.Columns.Add("sno");
dt.Columns.Add("productid");
dt.Columns.Add("productname");
dt.Columns.Add("price");
dt.Columns.Add("productimage");
dt.Columns.Add("cost");
dt.Columns.Add("totalcost");
if (Request.QueryString["id"] != null)
{
if (Session["Buyitems"] == null)
{
dr = dt.NewRow();
String mycon = ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString;
SqlConnection scon = new SqlConnection(mycon);
String myquery = "select * from products where id=" + Request.QueryString["id"];
SqlCommand cmd = new SqlCommand();
cmd.CommandText = myquery;
cmd.Connection = scon;
SqlDataAdapter da = new SqlDataAdapter();
da.SelectCommand = cmd;
DataSet ds = new DataSet();
da.Fill(ds);
dr["sno"] = 1;
dr["productid"] = ds.Tables[0].Rows[0]["id"].ToString();
dr["productname"] = ds.Tables[0].Rows[0]["pname"].ToString();
dr["productimage"] = ds.Tables[0].Rows[0]["pimage"].ToString();
dr["price"] = ds.Tables[0].Rows[0]["price"].ToString();
dt.Rows.Add(dr);
GridView1.DataSource = dt;
GridView1.DataBind();
Session["buyitems"] = dt;
}
else
{
dt = (DataTable)Session["buyitems"];
int sr;
sr = dt.Rows.Count;
dr = dt.NewRow();
String mycon = ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString;
SqlConnection scon = new SqlConnection(mycon);
String myquery = "select * from products where id=" + Request.QueryString["id"];
SqlCommand cmd = new SqlCommand();
cmd.CommandText = myquery;
cmd.Connection = scon;
SqlDataAdapter da = new SqlDataAdapter();
da.SelectCommand = cmd;
DataSet ds = new DataSet();
da.Fill(ds);
dr["sno"] = sr + 1;
dr["productid"] = ds.Tables[0].Rows[0]["id"].ToString();
dr["productname"] = ds.Tables[0].Rows[0]["pname"].ToString();
dr["productimage"] = ds.Tables[0].Rows[0]["pimage"].ToString();
dr["price"] = ds.Tables[0].Rows[0]["price"].ToString();
dt.Rows.Add(dr);
GridView1.DataSource = dt;
GridView1.DataBind();
Session["buyitems"] = dt;
}
}
else
{
dt = (DataTable)Session["buyitems"];
GridView1.DataSource = dt;
GridView1.DataBind();
}
}
}
public int grandtotal()
{
DataTable dt = new DataTable();
dt = (DataTable)Session["buyitems"];
int nrow = dt.Rows.Count;
int i = 0;
int gtotal = 0;
while (i < nrow)
{
gtotal = gtotal + Convert.ToInt32(dt.Rows[i]["totalprice"].ToString());
i = i + 1;
}
return gtotal;
}
protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
DataTable dt = new DataTable();
dt = (DataTable)Session["buyitems"];
for (int i = 0; i <= dt.Rows.Count - 1; i++)
{
int sr;
int sr1;
string qdata;
string dtdata;
sr = Convert.ToInt32(dt.Rows[i]["sno"].ToString());
TableCell cell = GridView1.Rows[e.RowIndex].Cells[0];
qdata = cell.Text;
dtdata = sr.ToString();
sr1 = Convert.ToInt32(qdata);
if (sr == sr1)
{
dt.Rows[i].Delete();
dt.AcceptChanges();
//Label1.Text = "Item Has Been Deleted From Shopping Cart";
break;
}
}
for (int i = 1; i <= dt.Rows.Count; i++)
{
dt.Rows[i - 1]["sno"] = i;
dt.AcceptChanges();
}
Session["buyitems"] = dt;
Response.Redirect("Cart.aspx");
}
}
}