Added cart items display in database

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I want to get the product name,price,image path...in my database table i.e. "Cart" by clicking imagebutton. Can anyone please help me to do so and correct my code??

using System.Data.SqlClient;

public partial class Shopping_pro : System.Web.UI.Page
{

SqlConnection con;
SqlCommand com;

protected void Page_Load(object sender, EventArgs e)
{
Label7.Text = Session["cart"].ToString();
}
protected void ImageButton3_Click(object sender, ImageClickEventArgs e)
{
if (Session["name"]!=null)
{

Session["cart"] = ((int)(Session["cart"]) + 1);

//int pid;
//string pname, pimg;

con = new SqlConnection(ConfigurationManager.ConnectionStrings["connectionstring"].ConnectionString);

com = con.CreateCommand();

com.CommandText = "insert into cart select pid,pname,pimg,price from table_name where pid=@pid";
//com.Parameters.AddWithValue("@pid", pid);
//com.Parameters.Add("id", SqlDbType.Int).Value = 1;

com.Parameters.AddWithValue("@pname",pname);
com.Parameters.AddWithValue("@pimg",pimg);
com.Parameters.AddWithValue("@price",price);
con.Open();
int r = com.ExecuteNonQuery();
con.Close();

}
else
{
Response.Redirect("user_login.aspx");
}

}
}

Posted 6-Mar-13 22:39pm

shchiku

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Sampath Sridhar · Answer 1 · 2013-03-06T22:44:00

Hi,

So far the code you've posted above is fine except the below part.

C#

//int pid;
//string pname, pimg;

con = new SqlConnection(ConfigurationManager.ConnectionStrings["connectionstring"].ConnectionString);

com = con.CreateCommand();

com.CommandText = "insert into cart select pid,pname,pimg,price from table_name where pid=@pid";
//com.Parameters.AddWithValue("@pid", pid);
//com.Parameters.Add("id", SqlDbType.Int).Value = 1;

com.Parameters.AddWithValue("@pname",pname);
com.Parameters.AddWithValue("@pimg",pimg);
com.Parameters.AddWithValue("@price",price);

Here the variables like pid, pname, pimg and price are not declared.
You have to either declare them in the start of the method or get the values from user input and assign here.