我有两个下拉列表，一个是类别，另一个是产品。当我选择类别下拉列表时，根据该类别，产品必须绑定到产品下拉列表，从 Web 服务数据进入产品下拉列表，但在选择之前不可见作为一个普通页面（没有选择）产品下拉列表是可见的。
在这里我提供我的代码
$.ajax({
type: "POST",
contentType: "application/json; charset=utf-8",
url: "WebService.asmx/ToFillCategoryDropDown",
dataType: "json",
success: function (data) {
var dataSource = [];
for (i = 0; i < data.d.length; i++) {
dataSource.push({ "CategoryName": data.d[i].CategoryName })
};
$("#ddlCategory").kendoDropDownList({
dataTextField: "CategoryName",
dataValueField:"CategoryName",
dataSource: dataSource,
change: ChangeWeek
});
},
failure: function (msg) {
alert(msg);
}
});
$("#ddlProduct").kendoDropDownList();
function ChangeWeek(e) {
var ddlddlProduct = $("#ddlProduct"); //appending values..
//debugger
var ddlCat = $("#ddlCategory").data("kendoDropDownList"); //passin fiscalmonth value
var dataItem = ddlCat.text();
$.ajax({
type: "POST",
contentType: "application/json; charset=utf-8",
url: "WebService.asmx/ToFillProductDropDown", //controllerName/MethodName
data: "{'CategoryName':'" + dataItem + "'}",
dataType: "json",
async: false,
success: function (data) {
ddlReportWeek.empty();
var dataSource = [];
for (i = 0; i < data.d.length; i++) {
dataSource.push({ "ProductName": data.d[i].ProductName })
};
$("#ddlProduct").kendoDropDownList({
dataTextField: "ProductName",
dataSource: dataSource,
isVisible: true
});
},
failure: function (msg) {
alert(msg);
}
});
}
var app = new kendo.mobile.Application();