我在我的单页应用程序中使用Knockout js,我需要将一个 View 模型数据的值传递到另一个 View 模型数据,这样我就可以减少创建相同 View 的重复,下面是我的代码如何实现这一点。我有 2 个不同的 js 文件,其中一个由 Employee ViewModel 组成,另一个由 Department View Model 组成
//Employee View
<div class="Employee-view" data-role="view" id="employee">
<div data-role="content" >
<ul>
<li foreach:EmployeeData>
//Onlcick of this need to navigate to Department view and bind all values on particular Employee ID
<div databind:"click:GetDepartmentDetails">
<span data-bind:"text:EmployeeId"> <span>
<span data-bind:"text:EmployeeName"> <span>
<span data-bind:"text:EmployeeImage"> <span>
<div>
<li>
<ul>
</div>
</div>
EmployeeViewModel = new EmployeeDetailsViewModel();;
$(".Employee-view").each(function () {
ko.applyBindings(EmployeeViewModel, $(this).get(0));
});
function EmployeeViewModel()
{
var self=this;
self.EmployeeData = ko.observableArray([]);
self.GetEmployee=function(UserName,Password){
var UserModel = { UserName: UserName, Password: Password}
$.ajax({
type: "POST",
dataType: "json",
url: serverUrl + 'xxx/xxx/GetEmployee',
data: UserModel,
success: function (data) {
self.EmployeeData($.map(data, function (item) {
return new EmployeeModel(item);
})),
});}
//Click EVENT
self.GetDepartmentDetails=(EmployeeData)
{
// I am getting all the value in this ViewModel,I need to pass this value to DepartmentViewModel and i need to call the function
self.GetEmployeeByDepartment();
}
}
function EmployeeModel(data)
{
var self=this;
self.EmployeeId=ko.observable(data.EmployeeId)
self.EmployeeName=ko.observable(data.EmployeeName)
self.EmployeeImage=ko.observable(data.EmployeeImage)
}
//Department View
<div class="Department-view" data-role="view" id="Department">
<div data-role="content">
<ul>
<li data-bind:"foreach:DepartmentData ">
<div>
<span data-bind:"text:DeptId"> <span>
<span data-bind:"text:DeptName"> <span>
<div>
<li>
<ul>
</div>
</div>
//Department View Model
function DepartmentViewModel ()
{
var self=this;
self.DepartmentData = ko.observableArray([]);
self.GetEmployeeByDepartment=function(item){
employeeID=item.EmployeeId
employeename=item.Employeename
var DeptModel = { Employeename: employeeID, Employeename: employeename}
$.ajax({
type: "POST",
dataType: "json",
url: serverUrl + 'xxx/xxx/GetDepratmenDetails',
data: DeptModel ,
success: function (data) {
self.DepartmentData ($.map(data, function (item) {
return new DepartmentModel(item);
})),
});}}
}
function DepartmentModel(data)
{
var self=this;
self.DeptId=ko.observable(data.DeptID)
self.DeptName=ko.observable(data.DeptName)
}
DepartmentViewModel = new DepartmentDetailsViewModel();
$(".Department-view").each(function () {
ko.applyBindings(DepartmentViewModel, $(this).get(0));
});
最佳答案
您可以尝试在对象中收集实例化 View 模型,然后在该对象上运行 applybindings。你必须重新调整你已经绑定(bind)的东西的范围。但是有了这个,您应该能够通过访问例如 vm.EmployeeViewModel.SomeFunction() 来在模型之间交叉引用
var vm = {};
vm.EmployeeViewModel = new EmployeeViewModel();
vm.DepartmentViewModel = new DepartmentViewModel();
ko.applyBindings(vm);
关于javascript - 如何将数据从一个viewModel传输到另一个ViewModel Knockout JS,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/43179984/