这可能是最简单的问题，但我无法解决这个问题。我页面上的验证无效。每次我提交页面时，所有输入字段都空白，会生成一条警告，说“失败”。如果我输入所有具有某些值的字段，则数据已成功提交。
这是我的HTML：
@{
ViewBag.Title = "Exercise10";
}
<html>
<head>
<script src="../../Scripts/jquery-1.6.2.js" type="text/javascript"></script>
<script src="../../Scripts/knockout-2.2.1.js" type="text/javascript"></script>
<script src="../../Scripts/knockout.mapping-latest.js" type="text/javascript"></script>
<script src="../../Scripts/json2.js" type="text/javascript"></script>
<link href="../../Content/ExerciseStyle.css" rel="stylesheet" type="text/css" />
<script src="../../Scripts/Popup.js" type="text/javascript"></script>
<link rel="stylesheet" href="http://code.jquery.com/ui/1.10.0/themes/base/jquery- ui.css" />
<script src="http://code.jquery.com/ui/1.10.0/jquery-ui.js"></script>
<script src="../../Scripts/DatePicker.js" type="text/javascript"></script>
<script src="../../Scripts/knockout.validation.js" type="text/javascript"></script>
<script src="../../Scripts/knockout-validator.js" type="text/javascript"></script>
<script src="../../Scripts/knockout-validator-extensions.js" type="text/javascript"></script>
<link href="../../Scripts/extensions.css" rel="stylesheet" type="text/css" />
</head>
<body>
<form action="" method="post">
<div id="MainArea">
<table id="tbllist" align="center" style="margin-left: 15px; width: 96%; margin- right: 15px;">
<tr>
<th colspan="3" align="left">
<div id="title_p">
Enter Following Entries</div>
</th>
</tr>
<tr>
<td align="right" style="width: 40%;">
<b>Name :</b>
</td>
<td align="left" style="width: 17%;">
<input data-bind="value: EmployeeName" placeholder="Employee Name" class="txt"
type="text" />
</td>
<td align="left">
</td>
</tr>
<tr>
<td align="right">
<b>Emp# :</b>
</td>
<td align="left">
<input data-bind="value: EmployeeCode" placeholder="Employee Code" style="width: 200px;"
type="text" />
</td>
<td align="left">
</td>
</tr>
<tr>
<td align="right">
<b>Date of Birth :</b>
</td>
<td align="left">
<input data-bind="value: Dob" id="datepicker" placeholder="Date of Birth" style="width: 200px;"
type="text" /><span>(dd/mm/yyyy)</span>
</td>
<td align="left">
</td>
</tr>
<tr>
<td align="right">
<b>Age (18-60):</b>
</td>
<td align="left">
<input data-bind="value: Age" style="width: 200px;" placeholder="Age Range (18-60)"
type="number" min="18" max="60" />
</td>
<td align="left">
</td>
</tr>
<tr>
<td align="right">
<b>Contact Number :</b>
</td>
<td align="left">
<input data-bind="value: ContactNumber" placeholder="Contact Number" style="width: 200px;"
type="text" />
</td>
<td align="left">
</td>
</tr>
<tr>
<td align="right">
<b>Email :</b>
</td>
<td align="left">
<input data-bind="value: EmailID" placeholder="Email ID" style="width: 200px;"
type="email" />
</td>
<td align="left">
</td>
</tr>
<tr>
<td align="right">
<b>Address :</b>
</td>
<td align="left">
<input data-bind="value: Address" placeholder="Address" style="width: 200px;"
type="text" />
</td>
<td align="left">
</td>
</tr>
<tr>
<td align="right">
<b>City :</b>
</td>
<td align="left">
<select data-bind="value: City" style="width: 200px;">
<option value="Noida">New Delhi</option>
<option value="Noida">Noida</option>
<option value="Noida">Mumbai</option>
</select>
</td>
<td align="left">
</td>
</tr>
<tr>
<td align="right">
<b>Marital Status :</b>
</td>
<td align="left">
<input data-bind="checked: MaritalStatus" checked="checked" name="rdb" type="radio" /><span>UnMarried</span>
<input data-bind="checked: MaritalStatus" checked="checked" name="rdb" type="radio" checked="checked" /><span>Married</span>
</td>
<td align="left">
</td>
</tr>
<tr>
<td align="right">
<b>Any Employee Reference :</b>
</td>
<td align="left">
<input data-bind="checked: Is_Reference" type="checkbox" />yes
</td>
<td align="left">
</td>
</tr>
</table>
<table style="width: 99%; margin-right: 20px; padding: 5px;">
<tr align="right">
<td>
<button data-bind="click :$root.save" class="button">Save</button>
<input type="button" id="btnCancel" class="button" value="Cancel" onclick="JavaScript:closePopup();" />
</td>
</tr>
</table>
</div>
</form>
和我的观点模型（从上面继续）：
<script type="text/javascript">
//....................................................//
var EmpViewModel = function () {
//Make the self as 'this' reference
var self = this;
//Declare observable which will be bind with UI
self.EmployeeCode = ko.observable("").extend({ required: true });
self.EmployeeName = ko.observable("").extend({ required: { message: 'Please supply your Name.'} });
self.Dob = ko.observable("");
self.Age = ko.observable("").extend({number :true});
self.ContactNumber = ko.observable("");
self.EmailID = ko.observable("");
self.Address = ko.observable("");
self.MaritalStatus = ko.observable("");
self.City = ko.observable("");
self.Is_Reference = ko.observable("");
//The Object which stored data entered in the observables
var EmpData = {
EmpCode: self.EmployeeCode,
EmpName: self.EmployeeName,
Dob: self.Dob,
Age: self.Age,
ContactNumber: self.ContactNumber,
MaritalStatus: self.MaritalStatus,
EmailID: self.EmailID,
Address: self.Address,
City: self.City,
Is_Reference: self.Is_Reference
};
//Declare an ObservableArray for Storing the JSON Response
self.Employees = ko.observableArray([]);
//Function to perform POST (insert Employee) operation
self.save = function () {
//Ajax call to Insert the Employee
$.ajax({
type: "POST",
url: "/Exercise/Save/",
data: ko.toJSON(this), //Convert the Observable Data into JSON
contentType: "application/json",
success: function (data) {
alert(data);
},
error: function () {
alert("Failed");
}
});
//Ends Here
};
}
ko.applyBindings(new EmpViewModel());
</script>
答案 0 :(得分：12)
Knockout-validation仅在修改字段时显示验证消息。因此，如果所有字段都有效，则应检查提交，否则显示所有错误。
self.errors = ko.validation.group(this, { deep: true, observable: false });
//Function to perform POST (insert Employee) operation
self.save = function () {
// check if valid
if(self.errors().length > 0) {
self.errors.showAllMessages();
return;
}
//Ajax call to Insert the Employee
$.ajax({
type: "POST",
url: "/Exercise/Save/",
data: ko.toJSON(this), //Convert the Observable Data into JSON
contentType: "application/json",
success: function (data) {
alert(data);
},
error: function () {
alert("Failed");
}
});
//Ends Here
};
我创造了一个小提琴来表明：http://jsfiddle.net/delixfe/tSzYf/2/