我在淘汰赛中遇到了一些麻烦,希望这里的某个人能够帮助。敲除只能第一次工作
我有两个jQuery函数。其中一个使用knockout绑定到页面上的单个元素。另一个绑定到其余元素,然后调用第一个函数。
该数据来自返回Json的AJAX请求。
我遇到的问题是使用pGroups列表。它在第一次正常工作,但当你再次点击它失败并需要刷新才能再次工作。
控制台错误是:NotFoundError:节点未找到
编辑:更新后的代码,以显示进度
jQuery的是:
//Load user data into the action window when a user is selected
$('.ListUserLink').click(function() {
var url = '@Url.Action("DisplayUser", "AjaxUser")' + '?UserId=' + $(this).attr("UserId") + '&UserNum=' + $(this).attr("UserNum") + "&SectId=" + $(this).attr("Sect");
$.ajax({
url: url,
contentType: "application/json; charset=utf-8",
type: 'POST',
context: this,
timeout: 60000,
dataType: 'json',
tryCount: 0,
retryLimit: 3,
success: function (data) {
//ko.applyBindings(new UserViewModel(data));
viewModel.user = new userModel(data);
},
error: function (httpRequest, textStatus, errorThrown) {
alert("Error");
}
});
});
//Load sections on department index change
$("#ddbDepartments").change(function() {
var url = '@Url.Action("GetSectionsByDept", "AjaxUser")' + '?deptId=' + $(this).val();
$.ajax({
url: url,
contentType: "application/json; charset=utf-8",
type: 'POST',
context: this,
timeout: 60000,
dataType: 'json',
tryCount: 0,
retryLimit: 3,
success: function (data) {
//ko.applyBindings(new SectionViewModel(data), $(".SectionsDDB")[0]);
viewModel.sections = new userModel(data);
},
error: function (httpRequest, textStatus, errorThrown) {
alert("Error");
}
});
});
//Assign Section details to fields
function sectionsModel(data) {
this.sectionList = ko.observableArray(data.SectionList);
// this.sections = this.sectionList;
// this.selectedItem = parseInt($("#OldSectionId").value);
};
//Assign user details to fields
function userModel(data) {
this.fullName = ko.observable(data.FirstName + " " + data.Surname);
this.firstName = ko.observable(data.FirstName);
this.surname = ko.observable(data.Surname);
this.usernum = ko.observable(data.UserNum);
//Assign JobTitle Dropdown and selected value
this.jobTitlesList = ko.observableArray(data.TitlesList);
this.jobTitles = this.jobTitlesList;
this.selectedItem = data.JobTitleNum;
//Assign Group/Application list
this.pGroups = ko.observableArray(data.GroupList);
this.sections = ko.observableArray([{}]);
this.ext = ko.observable(data.Ext);
this.userId = ko.observable(data.UserId);
this.olduserid = ko.observable(data.UserId);
$("#ddbDepartments").val(data.DeptId);
this.oldsectionid = ko.observable(data.SectionId);
$("#ddbDepartments").change();
this.oldsectionid = ko.observable(data.SectionId);
//$("#SectionsDDB").val(data.SectionId);
};
var wrapper = function() {
this.user = new userModel(userdata);
this.sections = new sectionsModel(sectiondata);
};
var viewModel = new wrapper();
ko.applyBindings(viewModel);
的pGroups HTML这是在第二失败尝试是:
<div data-bind="with: user" id="ActionWindow">
<form action="@Url.Action("SaveUserDetails", "AJAXUser")" method="post" class="AjaxSubmit" id="userDetailsForm">
<h2>User: <span data-bind="text: fullName"></span></h2>
<table>
<tr>
<td>First Name:</td>
<td><input type="text" name="FirstName" id="FirstName" data-bind="value: firstName" /></td>
<td>
<input type="hidden" name="UserNum" id="UserNum" data-bind="value: usernum" />
<input type="hidden" name="OldUserId" id="OldUserId" data-bind="value: olduserid" />
<input type="hidden" name="OldSectionId" id="OldSectionId" data-bind="value: oldsectionid" />
</td>
<td></td>
</tr>
<tr>
<td>Surname:</td>
<td><input type="text" name="Surname" id="Surname" data-bind="value: surname" /></td>
<td></td>
<td></td>
</tr>
<tr>
<td>Job Title:</td>
<td><select name="JobTitleNum" id="TitlesList" data-bind="options: jobTitles, optionsValue: 'TitleId', optionsText: 'Title', value: selectedItem"></select></td>
<td></td>
<td></td>
</tr>
<tr>
<td>Extension:</td>
<td><input type="text" name="Ext" id="Ext" data-bind="value: ext" /></td>
<td></td>
<td></td>
</tr>
<tr>
<td>Login ID:</td>
<td><input type="text" name="UserId" id="UserId" data-bind="value: userId" /></td>
<td></td>
<td></td>
</tr>
<tr>
<td>Department:</td>
<td>
<select id="ddbDepartments" name="DeptId">
@foreach (var d in Model.DepartmentList)
{
<option value="@d.DeptId">@d.DeptName</option>
}
</select>
</td>
<td>Section: </td>
<td>
<select name="SectionId" class="SectionsDDB" data-bind="options: $root.sections.list, optionsValue: 'SectId', optionsText: 'SectName', value: SectionId"></select>
@*<select name="SectionId" class="SectionsDDB" data-bind="options: sections, optionsValue: 'SectId', optionsText: 'SectName', value: selectedItem"></select>*@
</td>
</tr>
</table>
<input type="submit" value="Update User" />
<br />
</form>
<h2>Current Groups</h2>
<table>
<tbody data-bind="foreach: pGroups">
<tr>
<td data-bind="text:AppName"></td>
<td data-bind="text:GroupName"></td>
</tr>
</tbody>
</table>
其他所有工作。
我发现这一点:http://knockoutjs.com/documentation/plugins-mapping.html
这表明我应该是这样的映射:
var viewModel = ko.mapping.fromJS(data, mapping);
但尝试,因为我可能我无法弄清楚如何将其应用到我的代码。
任何帮助将不胜感激。
的ko.applyBindings功能不应该叫每次改变时间部门。 每次调用ko.applyBindings时,整个DOM都会检查绑定。因此,如果您多次执行此操作,您将获得同一元素的多个绑定。 请检查此链接,以确保您了解如何在同一页面上拥有多个视图:http://stackoverflow.com/questions/8676988/example-of-knockoutjs-pattern-for-multi-view-applications/8680668#8680668 –
如果你不能解决问题,请添加一个jsfiddle –
所以我需要从AJAX成功移除ko.apply绑定,并将其映射到那里呢?你的链接中的例子似乎是单独调用Dom的单独部分,因为我有一些重叠。 这里是一个jsFiddle,但我不能为我的生活得到它的工作http://jsfiddle.net/dariune/8djDw/ –