//GetStateDetailinCombo is to bind state details to combobox public void GetStateDetailinCombo() { //using DataTable we can get the state details from database and those are bind to combobox using (DataTable dt = objm.GetStateDetailinCombo()) { StateRadComboBox.DataSource = dt; StateRadComboBox.DataTextField = "State"; StateRadComboBox.DataValueField = "Statenumber"; StateRadComboBox.DataBind(); StateRadComboBox.Items.Insert(0, new RadComboBoxItem("--- Select ---", "0")); } }
// CityIDtxtbox_TextChanged event is used to validate the Citytextbox protected void CityIDtxtbox_TextChanged(object sender, EventArgs e) { string lbl = CityIDtxtbox.Text; //Using below expression user can only enter charcters for city if (System.Text.RegularExpressions.Regex.IsMatch(CityIDtxtbox.Text, "^[a-zA-Z ]+$")) { lblErrorMsg.Text = ""; //set focus to next field StateRadComboBox.Focus(); } else { CityIDtxtbox.Text = CityIDtxtbox.Text.Remove(CityIDtxtbox.Text.Length - 1); lblErrorMsg.Text = ("Enter the Cityname for ex.Dallas "); } }