$( document ).ready(function() { $(function () { $.ajax({ type: "POST", url: "Single_page.aspx/getCity", data: '{}', contentType: "application/json; charset=utf-8", dataType: "json", success: function (r) { var ddlCity = $("[id*=ddlCity]"); ddlCity.empty().append('<option selected="selected" value="0">Please Select City </option>'); $.each(r.d, function () { ddlCity.append($("<option></option>").val(this['Value']).html(this['Text'])); }); } }); }); }); $('#<%=ddlCity.ClientID %>').change(function () { alert(cityID); var cityID = $("[id*=ddlCity] > option[@selected]").attr("value"); alert(cityID); $("[id *= ddlLocality]").html(""); $.ajax({ type: "POST", url: "Single_page.aspx/getLocality", data: "{ID:'" + cityID + "'}", contentType: "application/json; charset=utf-8", dataType: "json", success: function (r) { var ddlLocality = $("[id*=ddlLocality]"); ddlLocality.empty().append('<option selected="selected" value="0">Please Select City </option>'); $.each(r.d, function () { ddlLocality.append($("<option></option>").val(this['Value']).html(this['Text'])); }); } }); });
<asp:DropDownList ID="ddlCity" runat="server" class="form-control" > </asp:DropDownList> <asp:DropDownList ID="ddlLocality" runat="server" class="form-control"> </asp:DropDownList>
var
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