如何使用javascript动态删除在html中创建的输入表单
我现在陷入困境,不知道该怎么办。解决方案可能很简单,但由于我是JavaScript环境的新手,我有点迷茫 我创建了一个复选选项,当按下该选项时,它将生成一个输入表单,并用“AddNew”按钮填充,以生成另一个输入表单 在我的代码中,当按下“AddNew”按钮时,它已经创建了一个带有“Delete”按钮的动态输入表单,但是,我似乎无法使这个“Delete”禁令在按下时起作用 欢迎一切帮助。我正在使用html和JavaScript。最终,我将使用pup作为中间人将这些表单值保存在sql数据库中 PS:我正在使用WordPress作为web开发工具,因为页面已经在其中创建,是的,我知道除了主html页面之外,我还应该使用JavaScript和CSS 以下是我目前掌握的代码:如何使用javascript动态删除在html中创建的输入表单,javascript,php,html,Javascript,Php,Html,我现在陷入困境,不知道该怎么办。解决方案可能很简单,但由于我是JavaScript环境的新手,我有点迷茫 我创建了一个复选选项,当按下该选项时,它将生成一个输入表单,并用“AddNew”按钮填充,以生成另一个输入表单 在我的代码中,当按下“AddNew”按钮时,它已经创建了一个带有“Delete”按钮的动态输入表单,但是,我似乎无法使这个“Delete”禁令在按下时起作用 欢迎一切帮助。我正在使用html和JavaScript。最终,我将使用pup作为中间人将这些表单值保存在sql数据库中 PS
<!DOCTYPE html>
<html>
<style type="text/css">
label{
float:left;
width: 10em;
text-align: right;
margin-right: 10px;
}
</style>
<script type="text\javascript">
function checkform(form) {
// get all the inputs within the submitted form
var inputs = form.getElementsByTagName('input');
for (var i = 0; i < inputs.length; i++) {
// only validate the inputs that have the required attribute
if(inputs[i].hasAttribute("required")){
if(inputs[i].value == ""){
// found an empty field that is required
alert("Please fill all required fields");
return false;
}
}
}
return true;
}
</script>
<script type="text/javascript">
//This function adds another form input when button "Add" is pressed
var counter = 1;
var limit = 5;
function addInput(divName){
if (counter == limit) {
alert("You have reached the limit of adding " + counter + " Co-PI or Co-Investigators");
}
else {
var divName = divName;
var newDivName = (divName + counter);
var newdiv = document.createElement('div');
newdiv.id = "dynamicInput" + counter;
newdiv.innerHTML = (counter + 1) + ". Co-PI or Co-Investigator Information: <br>" +
"<label>First Name : </label><input type='text' name='fname[]' maxlength='35' required><br> " +
"<label>Last Name : </label><input type='text' name='lname[]' maxlength='35'><br> " +
"<label>Degree : </label><input type='text' name='degree[]' maxlength='10'><br> " +
"<label>Current Position : </label><input type='text' name='cPos[]' maxlength='30'><br> " +
"<label>Institution : </label><input type='text' name='inst[]' maxlength='40'><br> " +
"<label>School : </label><input type='text' name='school[]' maxlength='40'><br> " +
"<label>Department : </label><input type='text' name='depart[]' maxlength='40'><br> " +
"<label>Program : </label><input type='text' name='program[]' maxlength='40'><br> " +
"<label>Email : </label><input type='text' name='email[]' maxlength='255'><br> " +
"<label>Phone (xxx-xxx-xxxx) : </label><input type='text' name='phone[]' maxlength='10'> <br><br>" +
"<input type='button' value='Delete Previous Form' onClick='removeForm(divName, newDivName);'> ";
document.getElementById(divName).appendChild(newdiv);
counter++;
}
}
//Delete div form when delete button is pressed
function removeForm(parentDiv, childDiv){
if(childDiv == parentDiv)
{
alert("Cannot delete anymore form entries!");
}
else if (document.getElementById(childDiv))
{
var child = document.getElementById(childDiv);
var parent = document.getElementById(parentDiv)
parent.removeChild(child);
counter--;
}
else
{
alert("Form has been removed or does not exist.");
return false;
}
}
</script>
<script type="text/javascript">
function aff_div(ladiv) {
document.getElementById(ladiv).style.display = "inline";
}
function cach_div(ladiv) {
document.getElementById(ladiv).style.display = "none";
}
function affich_conj() {
if (document.forms.CoPI_CoInv_Info.yesNoChkbox[0].checked == true) {
aff_div("dynamicInput");
aff_divBtn("btn_New_CoPI_Inv");
}
if (document.forms.CoPI_CoInv_Info.yesNoChkbox[1].checked == true) {
cach_div("dynamicInput");
cach_divBtn("btn_New_CoPI_Inv");
}
}
function aff_divBtn(BtnDiv) {
document.getElementById(BtnDiv).style.display = "inline";
}
function cach_divBtn(BtnDiv) {
document.getElementById(BtnDiv).style.display = "none";
}
</script>
<form id="CoPI_CoInv_Info" onsubmit="return checkform(this)">
<label1>Do you want to add a Co-PI or Co-Investigator? </label1>
<input type="radio" name="yesNoChkbox" value="yes" onclick="affich_conj();"> yes
<input type="radio" name="yesNoChkbox" value="no" checked="checked" onclick="affich_conj();"> no
<br><br>
<div id="dynamicInput">
1. Co-PI or Co-Investigator Information: <br>
<label>First Name : </label><input type="text" name="fname[]" maxlength="35" required><br>
<label>Last Name : </label><input type="text" name="lname[]" maxlength="35"><br>
<label>Degree : </label><input type="text" name="degree[]" maxlength="10"><br>
<label>Current Position : </label><input type="text" name="cPos[]" maxlength="30"><br>
<label>Institution : </label><input type="text" name="inst[]" maxlength="40"><br>
<label>School : </label><input type="text" name="school[]" maxlength="40"><br>
<label>Department : </label><input type="text" name="depart[]" maxlength="40"><br>
<label>Program : </label><input type="text" name="program[]" maxlength="40"><br>
<label>Email : </label><input type="text" name="email[]" maxlength="255"><br>
<label>Phone (xxx-xxx-xxxx) : </label><input type="text" name="phone[]" maxlength="10"> <br><br>
</div>
<divBtn id="btn_New_CoPI_Inv">
<input type="button" value="Add New Co-PI or Co-Investigator..." onClick="addInput('dynamicInput');">
</divBtn>
</form>
<script type="text/javascript">
cach_div("dynamicInput");
cach_divBtn("btn_New_CoPI_Inv");
</script>
</html>
标签{
浮动:左;
宽度:10em;
文本对齐:右对齐;
右边距:10px;
}
功能检查表(表格){
//获取提交表单中的所有输入
var inputs=form.getElementsByTagName(“输入”);
对于(变量i=0;i”+
“名字:
”+
“姓氏:
”+
“学位:
”+
“当前位置:
”+
“机构:
”+
“学校:
”+
“部门:
”+
“程序:
”+
“电子邮件:
”+
“电话(xxx xxx xxxx):
”+
" ";
document.getElementById(divName).appendChild(newdiv);
计数器++;
}
}
//按下删除按钮时删除div表单
函数removeForm(parentDiv、childDiv){
if(childDiv==parentDiv)
{
警报(“无法再删除表单条目!”);
}
else if(document.getElementById(childDiv))
{
var child=document.getElementById(childDiv);
var parent=document.getElementById(parentDiv)
父母。removeChild(子女);
计数器--;
}
其他的
{
警告(“表单已被删除或不存在”);
返回false;
}
}
职能助理消防处(ladiv){
document.getElementById(ladiv.style.display=“inline”;
}
功能cach_分区(ladiv){
document.getElementById(ladiv.style.display=“无”;
}
函数affich_conj(){
if(document.forms.CoPI\u CoInv\u Info.yesNoChkbox[0]。选中==true){
办公楼分区(“动态投入”);
aff_divBtn(“btn_New_CoPI_Inv”);
}
if(document.forms.CoPI\u CoInv\u Info.yesNoChkbox[1]。checked==true){
cach_div(“dynamicInput”);
cach_divBtn(“btn_New_CoPI_Inv”);
}
}
功能aff_divBtn(BtnDiv){
document.getElementById(BtnDiv.style.display=“inline”;
}
函数cach_divBtn(BtnDiv){
document.getElementById(BtnDiv.style.display=“无”;
}
您想添加联合PI还是联合调查员?
对
不
1.联合PI或联合调查员信息:
名字:
姓氏:
学位:
当前职位:
机构:
学校:
部门:
节目:
电子邮件:
电话(xxx xxx xxxx):
cach_div(“dynamicInput”);
cach_divBtn(“btn_New_CoPI_Inv”);
您需要引用并转义字符串中的变量~查看内联事件处理程序
var divName = divName;
var newDivName = (divName + counter);
var newdiv = document.createElement('div');
newdiv.id = "dynamicInput" + counter;
newdiv.innerHTML = (counter + 1) + ". Co-PI or Co-Investigator Information: <br>" +
"<label>First Name : </label><input type='text' name='fname[]' maxlength='35' required><br> " +
"<label>Last Name : </label><input type='text' name='lname[]' maxlength='35'><br> " +
"<label>Degree : </label><input type='text' name='degree[]' maxlength='10'><br> " +
"<label>Current Position : </label><input type='text' name='cPos[]' maxlength='30'><br> " +
"<label>Institution : </label><input type='text' name='inst[]' maxlength='40'><br> " +
"<label>School : </label><input type='text' name='school[]' maxlength='40'><br> " +
"<label>Department : </label><input type='text' name='depart[]' maxlength='40'><br> " +
"<label>Program : </label><input type='text' name='program[]' maxlength='40'><br> " +
"<label>Email : </label><input type='text' name='email[]' maxlength='255'><br> " +
"<label>Phone (xxx-xxx-xxxx) : </label><input type='text' name='phone[]' maxlength='10'> <br><br>" +
"<input type='button' value='Delete Previous Form' onClick='removeForm(\""+divName+"\", \""+newDivName+"\");'> ";
并使用
<input type='button' value='Delete Previous Form' onClick='removeForm(event);'>
您需要引用并转义字符串中的变量~查看内联事件处理程序
var divName = divName;
var newDivName = (divName + counter);
var newdiv = document.createElement('div');
newdiv.id = "dynamicInput" + counter;
newdiv.innerHTML = (counter + 1) + ". Co-PI or Co-Investigator Information: <br>" +
"<label>First Name : </label><input type='text' name='fname[]' maxlength='35' required><br> " +
"<label>Last Name : </label><input type='text' name='lname[]' maxlength='35'><br> " +
"<label>Degree : </label><input type='text' name='degree[]' maxlength='10'><br> " +
"<label>Current Position : </label><input type='text' name='cPos[]' maxlength='30'><br> " +
"<label>Institution : </label><input type='text' name='inst[]' maxlength='40'><br> " +
"<label>School : </label><input type='text' name='school[]' maxlength='40'><br> " +
"<label>Department : </label><input type='text' name='depart[]' maxlength='40'><br> " +
"<label>Program : </label><input type='text' name='program[]' maxlength='40'><br> " +
"<label>Email : </label><input type='text' name='email[]' maxlength='255'><br> " +
"<label>Phone (xxx-xxx-xxxx) : </label><input type='text' name='phone[]' maxlength='10'> <br><br>" +
"<input type='button' value='Delete Previous Form' onClick='removeForm(\""+divName+"\", \""+newDivName+"\");'> ";
并使用
<input type='button' value='Delete Previous Form' onClick='removeForm(event);'>
尝试要删除的Div的pass id:
newdiv.id = "dynamicInput" + counter;
newdiv.innerHTML = (counter + 1) + "... <input type='button' value='Delete Previous Form' onClick='removeForm(\"dynamicInput\"" + counter");'>";
尝试使用要删除的Div的pass id:
newdiv.id = "dynamicInput" + counter;
newdiv.innerHTML = (counter + 1) + "... <input type='button' value='Delete Previous Form' onClick='removeForm(\"dynamicInput\"" + counter");'>";
佩雷尔菲特!变量的引用解决了我的问题。这帮了大忙!非常感谢你!很棒的社区!佩雷尔菲特!变量的引用解决了我的问题。这帮了大忙!非常感谢你!很棒的社区!谢谢,我试过了,但我觉得我做错了什么,因为它不适合我。尽管如此,我们在stackoverflow的一位队友还是为我们解决了这个问题。我对你感激不尽。泰!谢谢,我试过了,但我觉得我做错了什么,因为它不适合我。尽管如此,我们在stackoverflow的一位队友还是为我们解决了这个问题。我对你感激不尽。泰!