I created the module, but to create my user control I have the following problem. The user control has two DropDownList, each linked to their respective SQLDataSource to choose a country which shows their respective cities, this user control now works perfectly in a project but when integrated into a mojoportal module i have problems because the page loads and displays the countries, but when I choose one of the items do not carry the cities, but added the same countries and if they spike again in another country recently loaded cities but again the same problem I doubled countries by selecting the items, please let me know I'm doing wrong but I reiterate that this user control works correctly on another project

        protected void ddlCountry_SelectedIndexChanged(object sender, EventArgs e)
        {
            ddlUTP.Items.Clear();
            ddlUTP.Items.Insert(0, new ListItem("[Seleccione]", "0"));
        }

        protected void ddlCity_SelectedIndexChanged(object sender, EventArgs e)
        {
            UTPID = Convert.ToInt32(ddlUTP.SelectedValue);
        }