public DataTable getCourses()
{
string CS = ConfigurationManager.ConnectionStrings["ConString"].ConnectionString;
using (SqlConnection con = new SqlConnection(CS))
{
SqlCommand cmd = new SqlCommand("select * from course", con);
SqlDataAdapter da = new SqlDataAdapter(cmd);
DataTable dt = new DataTable();
da.Fill(dt);
return dt;
}
}
public void ListBoxData()
{
ListBox1.DataSource = getCourses();
ListBox1.DataTextField = "id";
ListBox1.DataValueField = "label";
}
On page_load i am trying to call this method but listbox doesn't display any data.