[英]How to add/delete 2 or more fields in a form dynamically
我希望按要求動態添加和刪除表單中的兩個或多個字段。 舉例來說,一個人可以擁有多個電話號碼和多個電子郵件地址。 這個想法是讓用戶添加多個電話號碼和電子郵件地址(如果有的話)
下面是我所做的(僅是一個粗略的示例)
$(document).ready(function() { var max_fields = 10; var wrapper = $(".container1"); var add_button = $(".add_form_field"); var x = 0; $(add_button).click(function(e){ e.preventDefault(); if(x < max_fields){ x++; $(wrapper).append('<div><input type="text" name="mytext[' + x + ']"/><a href="#" class="delete">Delete</a></div>'); //add input box } else { alert('You Reached the limits') } }); $(wrapper).on("click",".delete", function(e){ e.preventDefault(); $(this).parent('div').remove(); x--; }) }); $(document).ready(function() { var max_fields = 10; var wrapper = $(".container2"); var add_button = $(".add_form_field_1"); var x = 0; $(add_button).click(function(e){ e.preventDefault(); if(x < max_fields){ x++; $(wrapper).append('<div><input type="text" name="text[' + x + ']"/><a href="#" class="delete">Delete</a></div>'); //add input box } else { alert('You Reached the limits') } }); $(wrapper).on("click",".delete", function(e){ e.preventDefault(); $(this).parent('div').remove(); x--; }) }); //I repeated the javascript for the first field which was this $(document).ready(function() { var max_fields = 10; var wrapper = $(".container1"); var add_button = $(".add_form_field"); var x = 0; $(add_button).click(function(e){ e.preventDefault(); if(x < max_fields){ x++; $(wrapper).append('<div><input type="text" name="mytext[' + x + ']"/><a href="#" class="delete">Delete</a></div>'); //add input box } else { alert('You Reached the limits') } }); $(wrapper).on("click",".delete", function(e){ e.preventDefault(); $(this).parent('div').remove(); x--; }) });
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <div class="container1"> <button class="add_form_field">Add New Field <span style="font-size:16px; font-weight:bold;">+ </span></button> <div> <input type="text" name="mytext[]"> </div> </div> <div class="container2"> <button class="add_form_field_1">Add New Field <span style="font-size:16px; font-weight:bold;">+ </span></button> <div> <input type="text" name="text[]"> </div> </div>
還有JsFiddle 。
我不是javascript
編碼人員,因此不知道這是您的工作方式還是更好的方法。
附言:一個小時前我問了同樣的問題,不得不重新表述,因為這引起了混亂。
您可以簡單地編寫很多代碼,請檢查以下內容:
$(document).ready(function() { $("button.add_form_field").click(function(e) { e.preventDefault(); var name = $(this).closest(".container").find("input:first").attr("class") var numInputs = $(this).closest(".container").find("input").size() if (numInputs < 10) { numInputs++; if (name=="mytext"){ $(this).closest(".container").append('<div><input type="text" name="mytext[' + numInputs + ']"/><a href="#" class="delete">Delete</a></div>'); } if (name=="text"){ $(this).closest(".container").append('<div><input type="text" name="text[' + numInputs + ']"/><a href="#" class="delete">Delete</a></div>'); } } else alert('You Reached the limits') }); $(document).on("click", ".delete", function(e) { e.preventDefault(); $(this).parent('div').remove(); }) });
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <div class="container"> <button class="add_form_field">Add New Field <span style="font-size:16px; font-weight:bold;">+ </span></button> <div> <input type="text" name="mytext[1]" class="mytext"> </div> </div> <div class="container"> <button class="add_form_field">Add New Field <span style="font-size:16px; font-weight:bold;">+ </span></button> <div> <input type="text" name="text[1]" class="text"> </div> </div>
$(document).ready(function() { var max_fields = 10; //maximum input boxes allowed var wrapper = $(".input_fields_wrap"); //Fields wrapper var add_button = $(".add_field_button"); //Add button ID var x = 1; //initlal text box count $(add_button).click(function(e){ //on add input button click e.preventDefault(); if(x < max_fields){ //max input box allowed x++; //text box increment $(wrapper).append('<div><input type="text" name="mytext[]"/><a href="#" class="remove_field">Remove</a></div>'); //add input box } }); $(wrapper).on("click",".remove_field", function(e){ //user click on remove text e.preventDefault(); $(this).parent('div').remove(); x--; }) });
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <div class="input_fields_wrap"> <button class="add_field_button">Add More Fields</button> <div><input type="text" name="mytext[]"></div> </div>
這是一個有效的示例,希望對您有所幫助。
這可能對您有幫助
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<script>
function removeUserDetail(index)
{
var rows=jQuery("#user_info tr").length;
jQuery("#user_info tr:nth-child("+(index+1)+")").remove();
if(index==(rows-1))
{
jQuery("#user_info tr:nth-child("+(index)+")").children().eq(4).append('<a class="mc_plus_button" id="plus_1" href="javascript:void();" onclick="addUserDetail();" title="add"><strong>+</strong></a>');
}
jQuery("#user_info tr").each(function(i,e){
if(i>1)
{
jQuery(this).children().eq(4).children().eq(0).attr("onclick","removeUserDetail("+i+");");
}
});
}
function addUserDetail() {
var row_count1 = jQuery("#user_info tr").length;
var row_count = 0;
jQuery(".tr_clone").each(function(index, value) {
var rowid = jQuery(this).data('rowid');
if (rowid > row_count) {
row_count = rowid;
}
});
row_count = row_count + 1;
jQuery("#user_info tr").eq(row_count1 - 1).find(".mc_plus_button").remove();
var html = '<tr class="tr_clone" data-rowid="' + row_count + '"><td>' + row_count + '</td>';
html += '<td style="text-align: center"><input type="text" name="user_info[name][]" id="name_'+row_count+'" aria-invalid="false" /></td>';
html += '<td style="text-align: center"><input type="text" name="user_info[email][]" id="email_'+row_count+'" aria-invalid="false" /></td>';
html += '<td style="text-align: center"><input type="text" name="user_info[contact][]" id="contact_'+row_count+'" aria-invalid="false" /></td>';
html += '<td><a class="mc_minus_button" id="minus_' + row_count + '" href="javascript:void();" onclick="removeUserDetail(' + row_count + ');" title="remove"><strong>–</strong></a><a class="mc_plus_button" href="javascript:void();" onclick="addUserDetail();" title="add"><strong>+</strong></a></td></tr>';
jQuery("#user_info").append(html);
}
</script>
<table id="user_info">
<tr>
<th>#</th>
<th>Name</th>
<th>Email</th>
<th>Contact</th>
</tr>
<tr class="tr_clone" data-rowid="1">
<td align="center">1</td>
<td style="text-align: center">
<input type="text" name="user_info[name][]" id="name_1" aria-invalid="false" />
</td>
<td style="text-align: center">
<input type="text" name="user_info[email][]" id="email_1" aria-invalid="false" />
</td>
<td style="text-align: center">
<input type="text" name="user_info[contact][]" id="contact_1" aria-invalid="false" />
</td>
<td><a class="mc_plus_button" href="javascript:void();" onclick="addUserDetail();" title="add"><strong>+</strong></a></td>
</tr>
</table>
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.