protected void lstContinents_SelectedIndexChanged(object sender, EventArgs e) { int continentID = int.Parse(lstContinents.SelectedValue); tblCountries = adpCountries.GetCountriesByContinentID(continentID); ddlCountries.DataSource = tblCountries; ddlCountries.DataTextField = tblCountries.CountryNameColumn.ToString(); ddlCountries.DataValueField = tblCountries.CountryIDColumn.ToString(); ddlCountries.DataBind(); ddlCountries.Items.Insert(0, "Select a Country"); ddlCountries.Enabled = true; imgFlag.ImageUrl = ""; lblLanguage.Text = ""; grdTowns.DataSource = null; grdTowns.DataBind(); }
protected void ddlContinents_SelectedIndexChanged(object sender, EventArgs e) { if (ddlContinents.SelectedIndex > 0) { int continentID = int.Parse(ddlContinents.SelectedValue); tblCountries = adpCountries.GetCountriesByContinentID(continentID); ddlCountries.DataSource = tblCountries; ddlCountries.DataTextField = tblCountries.CountryNameColumn.ToString(); ddlCountries.DataValueField = tblCountries.CountryIDColumn.ToString(); ddlCountries.DataBind(); ddlCountries.Items.Insert(0, "Select a Country"); ddlCountries.Enabled = true; } else { ddlCountries.SelectedIndex = 0; ddlCountries.Enabled = false; } }