Question

I have data base when there are user id there;
and I have a for loop, I want that the loop will run until the last ID
example: for (i=0; i > something; i++)
my question is what should be this something?
I also have the start of the code

using System;
using System.Collections.Generic;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using System.Data.OleDb;

public partial class _Default : System.Web.UI.Page
{
    public string strLname;
    public string strEmail;
    public string strFname;
    protected void Page_Load(object sender, EventArgs e)
    {

        string dbPath = Server.MapPath(@"App_Data") + "/my_site.mdb";
        string connectionString = @"Data Source='" + dbPath + "';Provider='Microsoft.Jet.OLEDB.4.0';";
        OleDbConnection con = new OleDbConnection(connectionString);
        con.Open();
        string QueryString = "SELECT * FROM tbl_users";
        OleDbCommand cmd = new OleDbCommand(QueryString, con);
        OleDbDataAdapter da = new OleDbDataAdapter(cmd);
        DataSet ds = new DataSet();
        da.Fill(ds, "tbl");
        con.Close();
        for (i=0; i < *something*; i++)

        }
    }

Answer 1

You can use the rows count of table at index 0 or what ever index you have.

for (i=0; i < ds.Tables[0].Rows.Count; i++)
{

}