[英]Undefined property knockout.js + mvc
我有一個masterDetails
視圖,其中填充了數據庫中的一些數據(可以很好地填充)。 我在主詳細信息視圖中添加了一個按鈕,以向我的工作流程添加一個步驟。
我的視圖模型:
/// <reference path="_references.js" />
var viewModel = function (data) {
var self = this;
self.SelectedWorkflow = ko.observable({
Steps: ko.observableArray([]),
Name: ko.observable("")
});
self.Workflows = ko.observableArray(data);
self.addStep = function() {
self.Steps.push(new Step(SelectedWorkflow, "Assignment here", "01/01/2014", "dd:mm:ss", "mail"));
};
};
function Step(workflow,assignment, enddate, reminder, mailaddresses, type) {
var self = this;
self.Workflow = workflow;
self.StepNumber = 0;
self.Assignment = assignment;
self.Enddate = enddate;
self.Reminder = reminder;
self.MailAddresses = mailaddresses;
self.Type = type;
};
/// <reference path="workflowdetails-vm.js" />
$(document).ready(function () {
$.ajax({
url: "/WorkflowDetails/Index/",
type: "POST",
data: {},
success: function (data) {
var workflowlist = ko.mapping.fromJS(data.Workflows);
vm = new viewModel(workflowlist);
ko.applyBindings(vm);
}
});
$(".right-aligned-section").hide();
});
$(document).delegate(".show-details", "click", function () {
$(".right-aligned-section").fadeIn();
var workflow = ko.dataFor(this);
vm.SelectedWorkflow(workflow);
});
我的觀點:
<div class="left-aligned-section">
<ul data-bind="foreach: Workflows()">
<li>
<div class="workflow-item-border">
<div>
<label data-bind="text: Name"></label>
</div>
<div>
<label data-bind="text: StartDate"></label>
</div>
<div>
<a href="#" class="show-details">Show Details</a>
</div>
</div>
</li>
</ul>
</div>
<div class="right-aligned-section" data-bind="with: SelectedWorkflow">
<div class="steps-header">
<div class="left-aligned-div"><strong>Steps for </strong></div>
<div class="left-aligned-div" data-bind="text: Name"></div>
</div>
<button data-bind="click: addStep">add step</button>
<ul data-bind="foreach: Steps">
<li>
<div class="step-item-border">
<div>
<div class="step-label">Stepnumber: </div>
<div style="font-weight: bold" data-bind="text: StepNumber"></div>
</div>
<div>
<div class="step-label">Assignment: </div>
<div style="font-weight: bold" data-bind="text: Assignment"></div>
</div>
<div>
<div class="step-label">Mails: </div>
<div style="font-weight: bold" data-bind="text: MailAddresses"></div>
</div>
<div>
<div class="step-label">End Date: </div>
<div style="font-weight: bold" data-bind="text: Enddate"></div>
</div>
<div>
<div class="step-label">Type: </div>
<div style="font-weight: bold" data-bind="text: Type"></div>
</div>
</div>
</li>
</ul>
</div>
當我按下按鈕時-什么也沒發生。 我收到的錯誤是:
ReferenceError:未定義步驟
我知道這意味着什么,但是我對Web開發的熟練程度不足以真正解決它。 請幫忙。
好像您在Steps.push....
之前忘記了this
編輯:我對點擊處理程序功能做了一些進一步的更改
var viewModel = function (data) {
this.SelectedWorkflow = ko.observable({
Steps: ko.observableArray([]),
Name: ko.observable("")
});
this.Workflows = ko.observableArray(data);
this.addStep = function (selectedWorkflow) { // the current context is passed in from the click data-bind
selectedWorkflow.Steps.push(new Step(selectedWorkflow, "Assignment here", "01/01/2014", "dd:mm:ss", "mail"));
}
}
編輯:固定代碼
可能這會工作:
var viewModel = {};
viewModel.SelectedWorkflow = {
Steps: ko.observableArray([]),
Name: ko.observable("")
};
viewModel.Workflows = ko.observableArray(data);
viewModel.addStep = function () {
viewModel.SelectedWorkflow.Steps.push(
new Step(SelectedWorkflow, "Assignment here", "01/01/2014", "dd:mm:ss", "mail"));
}
}
您忘記了SelectedWorkflow.Steps
我認為的步驟...
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