我不明白如何使用 jquery validate 验证表单以显示提交按钮。
我的javascript如下:
ko.bindingHandlers.jqValidate = {
init: function (element, valueAccessor, option) {
var element = element;
var validateOptions = {
ignore: [":hidden:not(required)"],
focusCleanup: true,
onsubmit: true
};
function displaySubmitButton() { // Remove/Add class to submit button
if ($('form').valid()) $('.toSave').show();
else $('.toSave').hide();
}
$('form').bind('onchange keyup onpaste', function (event, element) {
if ($('form').valid() === true && $(element).not('.resetForm')) $('.toSave').show();
else if ($(element).not('.resetForm')) $('.toSave').hide();
});
}
};
我的表格:
<ol class="MutColor13 mouseOver" data-bind="jqValidate: {}">
<li class="rightCol">
<strong>
<label for="iEmailReply"><asp:Literal runat="server" ID="lEmailReply" /></label>
</strong>
<input id="iEmailReply" name="EmailReply" type="text" tabindex="2"
class="MutColor13 email"
data-bind="value: communication.Message.ReplyEmail, valueUpdate: 'afterkeydown'"
required="required" />
</li>
<li class="leftCol">
<strong>
<label for="iEmailFrom"><asp:Literal runat="server" ID="lEmailFrom" /></label>
</strong>
<input id="iEmailFrom" name="EmailFrom" type="text" tabindex="1"
class="MutColor13 email"
data-bind="value: communication.Message.SenderEmail, valueUpdate: 'afterkeydown'"
required="required" />
</li>
<!-- and more form input -->
</ol>
我的提交按钮:
<div class="buttonBlock rightButton" data-bind="fadeVisible: validateMessage()">
<a class="MutButton3 toSave" data-bind="click: saveMessage"><span class="MutButton3">submit</span></a>
</div>
当我在 firebug 控制台中键入“$ ('form').valid ()”时,会出现所有错误消息。我认为提交按钮不是问题,因为此时我还没有点击
如果所有字段都有效,如何在字段(以及页面中的任何其他表单字段)显示提交按钮的同时启用来自输入简短更改的错误消息的显示?
我受到这个问题的启发:jquery validate: IF form valid then show submit button
一个工作演示: http: //jquery.bassistance.de/validate/demo/ 但按钮连续显示