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JQuery remove element from parent

I have a "Try Again!" message that appears when the inserted value exists in my dropdown select list, this is my code:
//I am trying to remove this message once the user starts typing again:
$('#new_day').on('input', function(){
//Get input value
var input_value = $(this).val();
//Remove disabled from the button
$('#new_day_save').removeAttr('disabled');
//iterate through the options
$(".days > option").each(function() {
//If the input value match option text the disable button
if( input_value == $(this).text()){
$('#new_day_save').attr('disabled', 'disabled');
$('#new_day_save').parent().append("<p id=\"error_message\" style=\"color: red\">Try again !</p>");
}else{
$('#new_day_save').parent().remove("#error_message");
}
});
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<select class="days">
<option>Monday</option>
<option>Friday</option>
</select>
<p>You have another proposition? Add it to the list.</p>
<div>
<input id="new_day" type="text" />
</div>
<input id="new_day_save" type="button" value="save new day"/>

you can just remove the #error_message by adding this to your event handler just before you compare input value to option
$('#new_day_save').parent().find('#error_message').remove()
and you can remove the else condition.
$('#new_day').on('input', function(){
//Get input value
var input_value = $(this).val();
//Remove disabled from the button
$('#new_day_save').removeAttr('disabled');
$('#new_day_save').parent().find('#error_message').remove();
//iterate through the options
$(".days > option").each(function() {
//If the input value match option text the disable button
if( input_value == $(this).text()){
$('#new_day_save').attr('disabled', 'disabled');
$('#new_day_save').parent().append("<p id=\"error_message\" style=\"color: red\">Try again !</p>");
}
});
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<select class="days">
<option>Monday</option>
<option>Friday</option>
</select>
<p>You have another proposition? Add it to the list.</p>
<div>
<input id="new_day" type="text" />
</div>
<input id="new_day_save" type="button" value="save new day"/>

This line $('#new_day_save').parent().remove("#error_message"); will remove parent element.
To remove specific element in jQuery, do simply since it's a id selector which is unique element,
$("#error_message").remove();

How to create a drop down that takes input from a text field and show the position on text

I am creating a drop down that takes input like a normal text field and show the position of the text. For this I have created a drop down and a text field and hide the drop down under text field. Now I want to write a Jquery that will take input from the text field and matches it with drop down and if there is a match then show the option from the drop down. Is it possible?

You can try with autocomplete Drop-down. Refer this link:
http://www.c-sharpcorner.com/UploadFile/ca3292/autocomplete-dropdown-using-jquery-with-C-Sharp/

Check this example
Js:
var options=["First","Second"];
$("#data").on('keyup',function(){
var v = $(this).val();
$("#options").html("");
$.each(options,function(index){
if(options[index].indexOf(v) > -1){
$("#options").append("<li>"+options[index]+"</li>");
}
})
})
**There are better and more efficient ways to do this you may use this as example to start with.

This is your:
HTML
Textbox: <input type="text" /><br />
Text and position: <span></span>
<select style="display: none;">
<option value="volvo">Volvo</option>
<option value="saab">Saab</option>
<option value="vw">VW</option>
<option value="audi" selected>Audi</option>
</select>
JQUERY
$("input").on('change keyup paste', function(){
var theInput = this;
$.each($("select option"), function(index, option){
if ($(option).val().toLowerCase().trim() ==
$(theInput).val().toLowerCase().trim()){
var textToShow = $(option).val().trim() + " " + Number(index + 1);
$("span").text(textToShow);
$("select").val($(theInput).val().toLowerCase().trim());
} else {
$("span").text("");
}
});
});
https://jsfiddle.net/L000qqr9/1/

and here is another quick example as well
http://codepen.io/anon/pen/LVebbr
var $inputField = $('#inputText'),
$dropdown = $('.dropdown');
$inputField.on('keyup', function(){
var _value = $(this).val();
$dropdown.children('li').each(function(){
( $(this).html().indexOf(_value) > -1 ) ? $(this).css('opacity', '1') : $(this).css('opacity', '0');
});
});
.dropdown li{
opacity:0
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<input type="text" name="text" id="inputText" />
<ul class="dropdown">
<li>op1</li>
<li>op2</li>
<li>op3</li>
<li>op3</li>
</ul>

How to open a div selecting a value from dropdown in jQuery

I need an application where i have a drop down where i have some values and and my requirement is that when i click any value on that drop down a div will open.I have implemented that but my code is not properly working.Here what i have done so far.
<div class="form-control">
<label class="lebelMergin" for="branch_branchTypeId">
<span class="spanMergin">Office Type<span class="required">*</span></span>
<s:select name="branch.branchTypeId" id="branch_branchTypeId" requiredLabel="true" list="%{dataArr['branchTypeList']}" listValue="name"
listKey="id" headerKey="" headerValue="Select Type" >
</s:select>
</label>
</div>
<div style='display:none;' id='business'>Business Name
<br/>
<br/>
<input type='text' class='text' name='business' value size='20' />
<br/>
</div>
<style>
#business {
display:none;
}
</style>
<script>
(function() {
$('#branch_branchTypeId').on('change', function () {
$("#business").css('display', (this.value == '1') ? 'block' : 'none');
});
But when i clicking on that values in the drop down only for one value the input box is coming but i want the functionality for all the value.Here i am attaching the screen ...For HO the input box is coming but for others it is not.

Which "option" tags do yo have in your select (dropdown)?
May be this would be help:
$('#branch_branchTypeId').on('change', function (event) {
var vl = $(this).val();
var target = $("#business");
if (vl) {
target.show();
} else {
target.hide();
}
});

The problem lies in your test this.value == 1. You can use this.selectedIndex instead.
$('#branch_branchTypeId').on('change', function () {
$("#business").css('display', (this.selectedIndex >= 1) ? 'block' : 'none');
});
Following your comment, I assumed that selectIndex == 0 corresponds to the default option, with business div not displayed.
See Fiddle: http://jsfiddle.net/3nvdeoab/

Onchange inside onchange jquery

Im having trouble having code onchange inside onchange event.
some works and some dont work due to that.
<script>
$(document).on('change', '.sellkop', function() { // this is radio button
if ($("#rs").is(':checked')) {
$("#text_container").after(price_option());
};
if ($("#rk").is(':checked')) {
$("#price_container").remove();
$("#licensenumber_c").css({"display": 'none'
});
};
});
$('#category_group').on('change', function() { // this is select options
if ($(this).val() == 101) {
$("#underKategory").css({"display": 'none'});
$("#modelcontainer").remove();
$(".toolimage").css({ "display": 'block'});
$('.sellkop').on('change', function() { // this is radio button
if ($("#rs").is(':checked')) {
$("#licensenumber_c").css({"display": 'block'});
$(".toolimage").css({"display": 'block' });
} else {
$(".toolimage").css({"display": 'none'});
}
});
} else {
$(".bilar").remove();
$(".toolimage").css({ "display": 'none'});
}
if ($(this).val() == 102) {
$(".houses_container").remove();
$(".toolimage").css({"display": 'none'});
$("#underKategory").css({"display": 'inline-block'});
$("#modelcontainer").remove();
}
///............many other values continue
});
</script>
i know there is better way to manage this code and simplify it , how can i do it ?
EDIT:
what i want is : if i select an option , then get values to that option, then under this category option there is radio buttons , then every check button i need to get some data displayed or removed
here is a fiddle there looks my problem by jumping from categories when i select buy or sell , so
if i select category-->check buy -->then select others . i dont get same result as if i select directly cars ---> buy

I have never resorted to even two answers before (let alone three), but based on all the comments, and in a desire to keep things simple another solution is to data-drive the visibility of other items based on selections, using data- attributes to store the selectors on the options and radio buttons.
JSFiddle: http://jsfiddle.net/TrueBlueAussie/4s5rwce2/28/
e.g the HTML for the select becomes
<select name="category_group" id="category_group">
<option value="0">choose category</option>
<option value='101' id='cat101' data-show="#sellbuy,.cars,.toolimage,#licenscontainer">cars</option>
<option value='102' id='cat102' data-show="#sellbuy,#underKategory">others</option>
</select>
and the radio buttons like this:
<input id='rs' type='radio' class='radio sellkop' value='s' name='type' checked='checked' data-show="#price_container,.cars,.toolimage"/>
The code becomes very simple then, simply applying the filters specified in the selected items.
$(document).on('change', '.sellkop', function () { // this is radio button
// Hide defaults
$("#price_container,.cars,.toolimage").hide();
// Show the items desired by the selected radio button
$($(this).data("show")).show();
});
$('#category_group').on('change', function () { // this is select options
// Get the various possible data options and decide what to show/hide based on those
var $this = $(this);
var value = $this.val();
// Get the selected option
var $li = $('option[value='+ value+']', $this);
// Hide all the defaults first
$('#licenscontainer,.cars,.toolimage,.sell,#underKategory').hide();
// Now show any desired elements
$($li.data('show')).show();
// Fire change event on the radio buttons to ensure they change
$('.sellkop:checked').trigger('change');
});
This is a very generic solution that will allow very complex forms to turn on/off other elements as required. You can add data-hide attributes and do something similar for those too if required.

Note: This was an attempt to fix the existing style of coding. I have posted an alternate answer showing a far simpler method using hide/show only.
A few problems.
If you must nest handlers, simply turn them off before you turn them on. Otherwise you are adding them more than once and all the previously recorded ones will fire as well.
Your HTML strings are invalid (missing closing </div>)
You can simply use hide() and show() instead of all the css settings. You should use css styling for any specific element styling requirements (e.g. based on classes).
You need to replace specific divs, rather than keep using after, or you progressively add more html. For now I have use html to replace the content of the #text_container div.
HTML in strings is a maintenance nightmare (as your example with missing </div> shows). Instead use templates to avoid the editing problems. I use dummy script blocks with type="text/template" to avoid the sort of problems you have found. That type means the browser simply ignores the templates.
JSFiddle: http://jsfiddle.net/TrueBlueAussie/4s5rwce2/17/
HTML (with templates)
<script id="saljkop">
<div class='sex sell' id='sellbuy' >
<label ><input id='rs' type='radio' class='radio sellkop' value='s' name='type' checked='checked'/> Sell </label>
<label ><input id='rk' type='radio' class='radio sellkop' value='k' name='type'/>buy</label>
</div>
</script>
<script id="price_option">
<div class="container" id = "price_container">
<div>
<label><input class="price_option" name="price_opt" value="1" type="radio"/> Fix </label>
<label class="css-label"><input class="price_option" name="price_opt" value="2" type="radio"/> offer </label>
</div>
</div>
</script>
<script id="cars">
<div class="cars" >
<div id="licenscontainer" ><div id="licensenumber_c">
<input id="licensenumber" placeholder="Registrer number" type="text" value="" />
</div>
</div>
</div>
</script>
<div id="categories">
<select name="category_group" id="category_group">
<option value="0">choose category</option>
<option value='101' id='cat101'>cars</option>
<option value='102' id='cat102'>others</option>
</select>
</div>
<div id="underKategory">sthis is subcategory</div>
<div id="toolimage1" class="toolimage">dddddd</div>
<div id="text_container" class="text_container">textttttt</div>
New jQuery code:
$(document).on('change', '.sellkop', function () { // this is radio button
console.log('.sellkop change');
if ($("#rs").is(':checked')) {
$("#text_container").html($('#price_option').html());
};
if ($("#rk").is(':checked')) {
$("#price_container").remove();
$("#licensenumber_c").hide();
};
});
$('#category_group').on('change', function () { // this is select options
if ($(this).val() == 101) {
$(".sell").remove();
$("#categories").after($('#saljkop').html());
$("#sellbuy").after($('#cars').html());
$("#text_container").html($('#price_option').html());
$("#underKategory").hide();
$(".toolimage").show();
$('.sellkop').off('change').on('change', function () { // this is radio button
if ($("#rs").is(':checked')) {
$("#licensenumber_c").show();
$(".toolimage").show();
} else {
$(".toolimage").hide();
}
});
} else {
$(".cars").remove();
$(".toolimage").hide();
}
if ($(this).val() == 102) {
$(".sell").remove();
$("#categories").after($('#saljkop').html());
$("#text_container").html($('#price_option').html());
$(".toolimage").hide();
$("#underKategory").show();
}
///............many other values continue
});
Now if you prefer to not nest handlers (recommended), just add to your existing delegated event handler for the radio buttons:
$(document).on('change', '.sellkop', function () { // this is radio button
console.log('.sellkop change');
if ($("#rs").is(':checked')) {
$("#text_container").html($('#price_option').html());
$("#licensenumber_c").show();
$(".toolimage").show();
};
if ($("#rk").is(':checked')) {
$("#price_container").remove();
$("#licensenumber_c").hide();
$(".toolimage").hide();
};
});
JSFiddle: http://jsfiddle.net/TrueBlueAussie/4s5rwce2/20/

Note: This was a second answer, hoping to simplify the overall problem to one of hiding/showing existing elements. I have posted a third(!) answer that takes it to an even simpler scenario using data- attributes to provide the filter selections.
I am adding a second answer as this is a complete re-write. The other answer tried to fix the existing way of adding elements dynamically. I now think that was simply a bad approach.
The basic principal with this one is to have very simple HTML with the required elements all present and simply hide/show the ones you need/ Then the selected values are retained:
This uses the multi-structure to effectively hide.show the licence field based on two separate conditions.
JSFiddle: http://jsfiddle.net/TrueBlueAussie/4s5rwce2/23/
Html (all element s present, just the ones you do not need hidden):
<div id="categories">
<select name="category_group" id="category_group">
<option value="0">choose category</option>
<option value='101' id='cat101'>cars</option>
<option value='102' id='cat102'>others</option>
</select>
<div class='sex sell' id='sellbuy' style="display: none">
<label>
<input id='rs' type='radio' class='radio sellkop' value='s' name='type' checked='checked' />Sell</label>
<label>
<input id='rk' type='radio' class='radio sellkop' value='k' name='type' />buy</label>
</div>
<div class="cars" style="display: none">
<div id="licenscontainer">
<div id="licensenumber_c">
<input id="licensenumber" placeholder="Registrer number" type="text" value="" />
</div>
</div>
</div>
</div>
<div id="underKategory">sthis is subcategory</div>
<div id="toolimage1" class="toolimage">dddddd</div>
<div id="text_container" class="text_container">
<div class="container" id="price_container" style="display: none">
<div>
<label>
<input class="price_option" name="price_opt" value="1" type="radio" />Fix</label>
<label class="css-label">
<input class="price_option" name="price_opt" value="2" type="radio" />offer</label>
</div>
</div>
</div>
jQuery:
$(document).on('change', '.sellkop', function () { // this is radio button
if ($("#rs").is(':checked')) {
$("#price_container").show();
$(".cars").show();
$(".toolimage").show();
};
if ($("#rk").is(':checked')) {
$("#price_container").hide();
$(".cars").hide();
$(".toolimage").hide();
};
});
$('#category_group').on('change', function () { // this is select options
if ($(this).val() == 101) {
$(".sell").hide();
$("#sellbuy").show();
$(".cars").show();
$("#underKategory").hide();
$(".toolimage").show();
$('#licenscontainer').show();
} else {
$('#licenscontainer').hide();
$(".cars").hide();
$(".toolimage").hide();
}
if ($(this).val() == 102) {
$(".sell").hide();
$("#sellbuy").show();
$(".toolimage").hide();
$("#underKategory").show();
$(".cars").hide();
}
$("#price_container").toggle($("#rs").is(':checked'));
///............many other values continue
});

using jquery to hide and show buttons on option change on the dropdown

I'm trying to display different buttons on selecting different field from the drop down. here's my code, it's working partialy only for the first item in the dropdown. Please advice what's wrong with my code:
<select id="my_id">
<option value="select">--Select--</option>
<option value="foo">foo</option>
<option value="bear">bear</option>
</select>
<div id="display_bt1" style="display:none;">
<input type="button" value="bt1" onclick ="" >
</div>
<div id="display_bt2" style="display:none;">
<input type="button" value="bt2" onclick ="" >
<script>
$(document).ready(function(){
$('#my_id').change(function() {
if ($(this).val() == 'foo') {
$('#display_bt2').show();
} else if ($(this).val() == 'bear'){
$('#display_bt1').show();
} else {
}
});
});
</script>

Some syntax errors, other than that, it should work:
$('#my_id').change(function() {
if (this.value == 'foo') {
$('#display_bt2').show();
} else if (this.value == 'bear') {
$('#display_bt1').show();
}
});
If you want to hide the other div on the change, add a class to each div, for example divClass, then hide that class on each change (of course this is if you want this functionality).
$('#my_id').change(function() {
$(".divClass").hide();
if (this.value == 'foo') {
$('#display_bt2').show();
} else if (this.value == 'bear') {
$('#display_bt1').show();
}
});

You can add name attribute to input element
<select id="my_id">
<option>foo</option>
<option>bear</option>
</select>
<div id="display_bt1" style="display:none;">
<input type="button" value="bt1" name="foo" onclick ="" />
</div>
<div id="display_bt2" style="display:none;">
<input type="button" value="bt2" name="bear" onclick ="" />
</div>
And then you can itterate over array of elements and compare selected option value with input's parent name attribute like this:
$(document).ready(function(){
$('#my_id').change(function() {
$this = $(this);
$('#display_bt1, #display_bt2').each(function() {
$(this).hide();
if($this.val() == $(this).children().attr('name')) $(this).show();
});
});
});
It's maybe not best way how to do it but i tried not modify HTML too much and make code more universal.
jsFiddle code