I have a form where the user can dynamically add or remove sets of fields. For each set of fields, when the user enters/changes a value in the upc[] text input I want to make an Ajax query and populate the corresponding desc[] text input. I can capture the change event, but have not been able to read or modify the dynamically create desc[] field:
This snippet does not have the Ajax call as for now I just want to know I can set desc[x].val(). I have tried to associate the dynamic field with a parent element that existed when the DOM was created...but still no luck.
$(document).on('change', '.upcScan', function(){
var upcIdx = $(this).index('.upcScan');
var upcVal = $(this).val();
alert ("The current index is "+upcIdx+" and the value is "+upcVal);
var descName = "desc["+upcIdx+"]";
var descVal = $("#addClient input[name='"+descName+"']").val();
alert("desc field is "+descName+" and value is "+descVal);
});
The code above returns null. If I try to set the val nothing happens.
What am I missing?
Related
In a Wordpress installation I have a custom post type and a metabox with custom post_meta fields.
Parent dropdown field in Gutenberg's sidebar used to be a <select> element. I have some scripts that onChange trigger the hide/show of different fields making them conditional, depending whether the page being edited is a parent or child:
$(document).on("change", ".editor-page-attributes__parent select", function(){
toggleFields();
}
The options in the <select> have IDs as values so I could get Title and ID for the selected parent and dynamically show some data in the metabox for my user:
var dropdown = $('.editor-page-attributes__parent select');
var parentName = dropdown.find(':selected').text();
var parentId = dropdown.val();
Since v5.6 Wordpress has replaced that select element with a Combo Box. I have tried to get the same data onChange and only had some success using blur:
$(document).on("blur", ".editor-page-attributes__parent .components-combobox-control__input", function(){
toggleFields();
var parentName = dropdown.val();
})
I was only able to get the page title since this combobox now has an input element that's missing IDs, like this one:
<input id="components-form-token-input-0" type="text" class="components-combobox-control__input components-form-token-field__input" value="Page Name Here">
I have also tried doing an Ajax, to retrieve the ID using get_page_by_title() but it does not always work because pages might have the same title and editor also adds dashes and spaces in names for hierarchy levels.
How can I get the associated ID of the page selected in the Parent Combobox on change?
After some time reading the Editor Documentation I found the proper solution. This is how you can listen to changes and get the id of the Parent Combobox select in the WP Editor:
wp.data.subscribe( function () {
var newParent = wp.data.select('core/editor').getEditedPostAttribute('parent');
console.log(newParent);
} );
wp.data.subscribe is called every single time a change occurs in the current state while editing posts in the editor, so the listener function is called every single time. We can avoid that with a simple variable check when there is an actual change to the field we want. It behaves as Redux subscribe without unsubscribe and only one listener.
To also check for the current post type we are editing we can use getCurrentPostType:
wp.data.select('core/editor').getCurrentPostType();
This is the full code for this problem for future reference:
if (wp.data.select('core/editor').getCurrentPostType() == 'cpt_name') {
const getPostParent = () => wp.data.select('core/editor').getEditedPostAttribute('parent');
// set initial parent
let postParent = getPostParent();
wp.data.subscribe(() => {
// get current parent
const newPostParent = getPostParent();
// only if parent changes
if( postParent !== newPostParent ) {
// Do what we want after parent changed
toggleFields();
}
// update the variable
postParent = newPostParent;
});
}
I am trying to do what seems to be simple but am unable to accomplish
I am trying to set the value of a column after a row focus change in a grid to a hidden value in java script.
My imbedded javascript code:
function OnGridFocusedRowChanged() {
grdA.GetRowValues(grdA.GetFocusedRowIndex(), 'ClientID', OnGetRowValues);
}
function OnGetRowValues(values) {
//Set hidden value
document.getElementById('<%=hdnClientID.ClientID%>').value = values[0];
//Fire button click
btnPopulateGrids_Click();
}
where hdnClientID is the name of my hidden field
In GridA I have the setting as such that OnGridFocusedRowChanged gets executed each time a row focus change takes place.
To this point, it works fine, the values[0] in OnGetRowValues() contains the correct value from the corresponding row in GridA.
But in the corresponding code behind, I cannot access the value from hidden field hdnClientID. Always comes up null when accessing
Current_Client_ID = CInt(hdnClientID.Value);
cannot access or convert any value from
hdnClientID.ClientID.
either.
I'm missing something simple.
I had to complete a similar task recently and I too was unable to access the value from codebehind. I researched and found out that it is not that simple and that you can't do it with javascript. What I would recommend is to check if you have jQuery installed and if you do, change your function to this:
function OnGetRowValues(values) {
//Set hidden value
$('#<%=hdnClientID.ClientID%>').val(values[0]);
//Fire button click
btnPopulateGrids_Click();
//If you change your HiddenField to have OnValueChange event, you can trigger it with this
//__doPostBack('<%= CompanyCode.ClientID %>', '');
}
Also, I guess you are firing some function from code behind with btnPopulateGrids_Click();.
I would recommend adding OnValueChanged="hdnClientID_OnValueChanged"/> to your <asp:HiddenField/> and using my supplied function triggering method.
I'm using a fake select box in my script which means the original select box is hidden and for styling purposes a ul is showing up. Whenever the selected value of this list changes the orginal select box does too.
There is a change function for that. Within that function is following code:
var el = $(e.currentTarget) ;
$('#my_select_box').children().removeAttr('selected');
$('#my_select_box option[value="'+el.attr('data-value')+'"]').attr('selected','selected');
After that change I want to retrieve the new selected value of the original select box in another function.
But the normal selector only gets the original value, not the new:
$('#my_select_box option:selected').val() //returns the wrong value
So how to I get the new value in the function I need it?
I tried this function:
$("#my_select_box").bind("DOMSubtreeModified", function() {
console.log($(this).find('option:selected').val());
});
It returns the correct value but not where I need it. So how can I retrieve the correct select box value out of the domtree live?
Thanks in advance!
instead of .attr('selected','selected');, try .prop('selected', true);
I have a script that looks at a popup modal with a form and should get the first input and focus to that. The forms can change and the input id will always be different.
I am catching the id with var item_id = $('.otf_itm [id]').first().prop('id'); This returns the first. In on case the input has an id of town_name. The problem is that the item does not focus when I use the $('#' + item_id).focus(); How can I get the form item to focus? I have used this method successfully before to get data using .val() and other manipulate parts of the page
// works
$('#town_name').focus();
// doesnt work
$('#' + item_id).focus();
$("#myForm input:first").focus();
Will focus the first input element. Whatever the first input element is.
Remark <select> elements do not fall under this category.
Here's the function that checks if the form is complete.
So, what I'm trying to do:
If radio is not selected, throw a message.
If radio is "yes", but text is not entered, throw error.
If radio is "no" but text is entered, make the text empty.
If all is good, add stuff into `allResponses
The form was displayed 5 times, and input was as follows:
Yes a1
No
Yes a3
No
Yes
Now, this input should display an error since in 5th case, "yes" is selected but nothing is entered in the textbox.
However, I get this:
http://i.imgur.com/ya2CUp0.png
Also, the text is not being updated as in 1st and 3rd cases.
I don't know a lot about JS, so please provide me with as explained responses as you can.
EDIT: Complete code: http://pastebin.com/scNSNM2H
Thanks
You have this in a loop:
var exaggerationPart = document.getElementById('exaggeration').value
And then you check to make sure it has a value for each item. But you will get the same value each time.
You are creating multiple inputs with the same id, "exaggeration". This is invalid HTML. Id's must be unique. To correct this, you can increment the id the same as you are doing with other elements (such as, input[name='response"+thisJokeIndex+"']).
var exaggerationPart = document.getElementById('exaggeration' + thisJokeIndex).value
tipTD2.append("<input type='text' name='exaggeration' id='exaggeration" + tipIndex + "' size='70'>")
Working demo: jsfiddle.net/svvge/2
Edit: To clear the value of the text box, you must change the value property of the text box element. Right now you are just changing the value of a variable.
var exaggerationInput = document.getElementById('exaggeration' + thisJokeIndex).value;
var exaggerationPart = exaggerationInput.value;
exaggerationInput.value = '';