给服务器端下拉asp:DropDownList 绑定改变事件，Ajax绑定下拉

给服务器端下拉asp:DropDownList 绑定改变事件，页面加载写ddl_GJ.Attributes.Add("onchange", "IsShow()");

//需要注意的是ie下中文需要转码：encodeURI(GJZ, "utf-8")
function IsShow() {
//获取城市下拉选中的值
var GJZ = $("#ddl_GJ option:selected").text();

$.ajax({
url: "../Common/AjaxRequest/Handler1.ashx?code='" + encodeURI(GJZ, "utf-8") + "'",
type: "GET",
success: function (data) {
$("#txtFax1").val(data);
$("#txtTel1").val(data);
},
error: function (error) {
alert("获取城市编码失败，请重新获取！");
}

});
}

转载于:https://www.cnblogs.com/mys0226/p/5751859.html