Question

I would like to pull data from my server and add to a table object. Loop thru the data afterwhich I would like to display the results on the aspx page.

DataTable dTable = new DataTable();
dTable.Columns.Add("idNum", typeof(Int64));
dTable.Columns.Add("Name", typeof(String));
dTable.Columns.Add("Age", typeof(Int64));
//Connection/Command/Statement
DataReader dr = command.ExecuteReader();
while (dr.Read()) { /*Add data to rows*/ }

How do I add the data to the rows? What is the best way to display on aspx?

Answer 1

Try this code, I tested on my local:

protected void Page_Load(object sender, EventArgs e)
{
    if (Page.IsPostBack)
        return;

    BindDG();
}

private void BindDG()
{

    SqlConnection connection = new SqlConnection("Data Source=servername;Initial Catalog=dbname;Integrated Security=True");
    using (connection)
    {
        SqlCommand command = new SqlCommand("select * From staff;",connection);
        connection.Open();

        SqlDataReader reader = command.ExecuteReader();

        if (reader.HasRows)
        {
            DataTable dt = new DataTable();
            dt.Columns.Add("ID", typeof(int));
            dt.Columns.Add("Name", typeof(string));
            dt.Columns.Add("Age", typeof(int));

            while (reader.Read())
            {
                int id = (int)reader["id"];
                string name = reader["name"].ToString();
                int age = (int)reader["age"];

                dt.Rows.Add(id, name, age);
            }

            GridView1.DataSource = dt;
            GridView1.DataBind();
        }
        else
        {
            Reponse.Write("No records found.");
        }
        reader.Close();
    }
}