$(...).jqBootstrapValidation 不是 HTMLDocument 的函数。<anonymous>

Question

>我正在尝试使用引导模板实现联系我们页面。我是一个非常初学者 asp.net，这是我第一次使用模板。 我真的无法理解导致上述错误的问题在哪里。 我希望当用户单击"发送消息"按钮将电子邮件发送到当前企业电子邮件时。 谁能帮我？

contact.cshtml
<div class="row">
<div class="col-lg-8 mb-4">
<h3>Send us a Message</h3>
<form name="sentMessage" id="contactForm" novalidate>
<div class="control-group form-group">
<div class="controls">
<label>Full Name:</label>
<input type="text" class="form-control" id="name" required data-validation-required-message="Please enter your name.">
<p class="help-block"></p>
</div>
</div>
<div class="control-group form-group">
<div class="controls">
<label>Phone Number:</label>
<input type="tel" class="form-control" id="phone" required data-validation-required-message="Please enter your phone number.">
</div>
</div>
<div class="control-group form-group">
<div class="controls">
<label>Email Address:</label>
<input type="email" class="form-control" id="email" required data-validation-required-message="Please enter your email address.">
</div>
</div>
<div class="control-group form-group">
<div class="controls">
<label>Message:</label>
<textarea rows="10" cols="100" class="form-control" id="message" required data-validation-required-message="Please enter your message" maxlength="999" style="resize:none"></textarea>
</div>
</div>
<div id="success"></div>
<!-- For success/fail messages -->
<button type="submit" class="btn btn-primary" id="sendMessageButton">Send Message</button>
</form>
</div>     
</div>
</div>
<script src="~/Content/vendor/jquery/jquery.min.js"></script>        
<script src="~/Scripts/contact_me.js"></script>
<script src="~/Scripts/jqBootstrapValidation.js"></script>
<script src="~/Content/vendor/bootstrap/js/bootstrap.min.js"></script>

contact_me.js
$(function () {
$('#contactForm input,#contactForm textarea').jqBootstrapValidation({
preventSubmit: true,
submitError: function($form, event, errors) {
// additional error messages or events
},
submitSuccess: function($form, event) {
event.preventDefault(); // prevent default submit behaviour
// get values from FORM
var name = $("input#name").val();
var email = $("input#email").val();
var phone = $("input#phone").val();
var message = $("textarea#message").val();
var firstName = name; // For Success/Failure Message
// Check for white space in name for Success/Fail message
if (firstName.indexOf(' ') >= 0) {
firstName = name.split(' ').slice(0, -1).join(' ');
}
$this = $("#sendMessageButton");
$this.prop("disabled", true); // Disable submit button until AJAX call is complete to prevent duplicate messages
$.ajax({
url: "mail/contact_me.php",
type: "POST",
data: {
name: name,
phone: phone,
email: email,
message: message
},
cache: false,
success: function() {
// Success message
$('#success').html("<div class='alert alert-success'>");
$('#success > .alert-success').html("<button type='button' class='close' data-dismiss='alert' aria-hidden='true'>&times;")
.append("</button>");
$('#success > .alert-success')
.append("<strong>Your message has been sent. </strong>");
$('#success > .alert-success')
.append('</div>');
//clear all fields
$('#contactForm').trigger("reset");
},
error: function() {
// Fail message
$('#success').html("<div class='alert alert-danger'>");
$('#success > .alert-danger').html("<button type='button' class='close' data-dismiss='alert' aria-hidden='true'>&times;")
.append("</button>");
$('#success > .alert-danger').append($("<strong>").text("Sorry " + firstName + ", it seems that my mail server is not responding. Please try again later!"));
$('#success > .alert-danger').append('</div>');
//clear all fields
$('#contactForm').trigger("reset");
},
complete: function() {
setTimeout(function() {
$this.prop("disabled", false); // Re-enable submit button when AJAX call is complete
}, 1000);
}
});
},
filter: function() {
return $(this).is(":visible");
},
});
$("a[data-toggle="tab"]").click(function(e) {
e.preventDefault();
$(this).tab("show");
});
});
/*When clicking on Full hide fail/success boxes */
$('#name').focus(function() {
$('#success').html('');
});

Answer 1

当我的回答通过评论发生变化时：

答案是OP两次添加了Jquery，从而在 文件jqBootstrapValidation.js

此外，为了根据OP的帖子帮助其他人，下一部分也可能有所帮助：

Javascript 文件需要按照其依赖顺序加载。由于您的自定义 javascript 文件，contact_me.js取决于 javascript 文件中包含的函数，jqBootstrapValidation.js，您需要在contact_me.js之前加载jqBootstrapValidation.js，以修复此开关加载这些文件的顺序：

<script src="~/Content/vendor/bootstrap/js/bootstrap.min.js"></script>
<script src="~/Scripts/jqBootstrapValidation.js"></script>
<script src="~/Content/vendor/jquery/jquery.min.js"></script>        
<script src="~/Scripts/contact_me.js"></script>