public void clear()
{
txtCrCity.Text = "";
ctlAdminMaster.ErrorMessage = "";
dpStateCity.Items.Clear();
ICityManager cityManager = (ICityManager)BusinessObjectManager.GetCityManager();
List <State> stateList = cityManager.GetStates();
dpStateCity.Items.Add("None");
foreach (State s in stateList)
{
ListItem item = new ListItem(s.Name, s.StateId.ToString());
dpStateCity.Items.Add(item);
}
dpStateCity.DataBind();
}