I'm trying to customize the datatables search box in order to better integrate it into a bootstrap based UI. I have a table-controlbar 'horicontal_group' that contains other controls where I'd like to put the search box. It works as far as I can generate filtering events, however there is one very annoying problem:
the search box is loosing focus, every time the filter function is called.
This is a stopgap since I'd like typeahead functionality instead of letting the user click a button to search. I'd also implement a delay between keypresses and filter events of course, but first I have to deal with this focus issue.
This is how the dom looks like using the default 'f' option in datatable's sDom:
This is what I'd like to have:
wrapper_div.find('.dataTables_filter input')
.addClass('form-control tableview-search')
.appendTo(horicontal_group) //if this is uncommented, it works fine
.bind('keypress keyup', function(e){
datatable.fnFilter(searchTerm);
});
What I've tried so far (without any effect on the outcome):
use a freshly created input field instead of the field provided by the sDom-parameter 'f' (and delete 'f' from sDom)
use stopPropagation() on the event
unbind the events on the input field before binding the new ones
use .on('input' ..) instead of .bind('keypress keyup' ..)
append the whole dataTables_filter div to horicontal_group instead of just the input field
Ok, while writing this I've thought about it some more and I came to a solution that I'm gonna leave here. Using the built-in wrapper-div and adapting it to bootstrap instead of recreating it from scratch, solved my issues. If you have more insight on why the focus is lost I'd still be glad for your input.
I now initialize the sDom like this:
sDom: '<"row"<"col-lg-12 col-tableview-controls"f>><"row"<"col-lg-12"RlrtiS>>'
After dt is initialized I fixup the dom like this (note that I also used the merged search box from this thread: Add Bootstrap Glyphicon to Input Box:
var horicontal_group = wrapper_div.find('.dataTables_filter');
horicontal_group.addClass('input-group pull-right horicontal-group');
var merged_input = $("<div class='input-group merged'><span class='input-group-addon search-addon glyphicon glyphicon-search'></span></div>")
.appendTo(horicontal_group);
var input = horicontal_group.find('input');
input.addClass('form-control tableview-search')
.appendTo(merged_input)
.on("focus blur", function() {
$(this).prev().toggleClass("focusedInput")
});
var label = horicontal_group.find('label');
label.remove();
Related
comboBox.trigger(´chosen:updated´) what does this do in Jquery?
Anyone can give an example?
I dont see any effect or utility.
I really search over 20 links over google and I cannot find the documentation.
---- correcions ----
´chosen:update´ to ´chosen:updated´
comboBox.trigger(´chosen:update´)
comboBox
You will have a variable that points to a jquery collection containing a select, likely setup using
let comboBox = $("#mySelect");
.trigger
Raises the named event
'chosen:update'
the name of the event to raise.
In this case, the event is namespaced, this just allows it to be specifically looked for in the chosen namespace. It could also be .trigger("updated") and chosen2 will likely pick it up - this stop other code such as .on("update".. from triggering.
It also appears to be a typo as the event (depending on the version of chosen2) should be updated.
All together, you call this code when you change the value of the underlying select, eg:
var comboBox = $("#mySelect");
comboBox.val("newValue");
comboBox.trigger(´chosen:update´)
when your select has been converted to a select2 combo box. Without which, the select2 UI would not be updated to match the new value.
NB: The event to trigger appears to change with each version of select2, it could be one of:
comboBox.trigger('chosen:updated');
comboBox.trigger('change');
I'm using Angular, Javascript and Typescript and Ionic.
I have a function createDropdown(inputField, arrayOfItems) which will attach a dropdown to the input field being passed populating the dropdown with the array provided.
This will work as a "autocomplete" dropdown, that's why I need a add an event listener "input" so it will look something like this:
createDropdown(inputField, arrayOfItems){
inputField.addEventListener("input",()=>{
//Logic to create dropdown
});
}
The problem is that, after adding the event listener to the input field, if the user spams a key "A" for instance from the keyboard, then this creates lag or delay and eventually the app crashes. Is there a way to prevent this from happening? I have tried "keyup", and it fixes it. However, with this, pressing any key from the keyboard will trigger the createDropdown function, for example: pressing "Control" or "Alt".
The end result should be, having the user typing in an input field, then the results that match should be displayed in the dropdown so the user can select from it. The more they type, the more accurate the results become.
You could use for example setTimeout() + implementation of a spinner.
Here an example for what I mean
https://stackblitz.com/edit/how-to-trigger-an-event-in-input-text-after-i-stop-typingwritin
What you're looking for is called "debouncing input". Take a look here: https://stackoverflow.com/a/36849347/4088472
I'm trying to capture the input on a dropdown in JavaScript when it is focused, but it appears to not throw events.
Without using a third party library, is there anyway to capture this input?
Example: http://jsfiddle.net/m4tndtu4/11/
you don't want a third party library, but tagged your question to jquery.
you also use jquery code inside your jsfiddle, and mix it with native js...
so i assume, that you would at least want to use jquery.
i edited your fiddle the following: http://jsfiddle.net/m4tndtu4/14/
i just deleted everything you wrote, and just entered one 'on' handler:
$("#sel1").on("keyup",function(){ //this captures selection changes
$("#output").css("background-color", "yellow").text($('#sel1 option:selected').text()); // change the css of output and set the text to the value of the selected option
var enteredSearchSequence = String.fromCharCode(e.which);
$("#input").css("background-color", "yellow").text(enteredSearchSequence);
});
currently, it shows only the last pressed key - and also don't work if SHIFT was pressed... but i guess, you can figure out, how to concat the keypress or even delete it, because it's treated as a new search.
btw. given that, you may want to take a look at angularjs or any other mvc - a list and a searchbox is quite easy with those frameworks!
I'm using this: $('form').dirtyForms(); from https://github.com/snikch/jquery.dirtyforms to check if my form is dirty. However, on my page I have some dropdown's that are simply used for filtering (they should not make my form "dirty"). Right now when I select any of these drop down's it causes my form to become dirty. Using jquery.dirtyforms (I read their docs but do not see how), how do I exclude selectors (dropdowns, textboxes, etc.) maybe via a class name so that they do not mark the form as dirty.
I tried various things like assigning these dropdowns / filters a class called ignoreDirty then in my jquery I did this:
$('form').dirtyForms().ignoreClass('ignoreDirty');
This produces an error, so I must be doing something wrong.
Note I've also tried setting it via property:
$('form').dirtyForms({ ignoreClass : "ignoreDirty" });
But this still makes my form dirty for any control whose class name is still ignoreDirty
Please note these filters cause postbacks but lets say I go to my form and have not made a single change. I start clicking on these filters and the minute they post back this happens:
What can one say, the plugin code makes almost no sense to me :D However to make it quickly work for ignoring select boxes, you could replace its onSelectionChange with following
Original function
var onSelectionChange = function() {
$(this).dirtyForms('setDirty');
}
New version
var onSelectionChange = function () {
//this is the new line. self explanatory
if ($(this).hasClass($.DirtyForms.ignoreClass)) return;
$(this).dirtyForms('setDirty');
}
After this you should rely on the original developer for a proper fix. I just posted this as an answer because of space in comments
There seems to be 2 different issues here.
First of all, you are attempting to set the ignoreClass to ignoredirty. ignoredirty is the default value, so there is no reason to set it. However, if you do need to set it to something else, you can do so using the syntax:
$.DirtyForms.ignoreClass = 'my-ignore-class';
Secondly, in version 1.0.0 the ignoreClass only worked on Hyperlinks. This behavior has been amended to work with input and selection elements in version 1.1.0.
In version 1.2.0, you can now also set the ignoreClass to parent container elements to ignore input or clicks from any element within.
I am writing a small script which will set focus to the filter text input field of the multi select jquery widget. Based on the documentation, I can subscribe to the click event of the widget like this:
// bind to event
$("#multiselect").bind("multiselectopen", function(event, ui){
// event handler here
});
So I tried this:
$("#MyStatusWidget").bind("multiselectopen", function(event, ui){
// event handler here
$(this).$(".ui-multiselect-filter").contents('input :text').focus());
});
Here is a link to the widget: http://www.erichynds.com/jquery/jquery-ui-multiselect-widget/
I also tried a couple other methods ($('').is(':text'); etc), but can't get the hook.
Here is the HTML:
<div class="ui-widget-header ui-corner-all ui-multiselect-header ui-helper-clearfix ui-multiselect-hasfilter">
<div class="ui-multiselect-filter">
Filter:
<input type="search" placeholder="Enter keywords">
</div>
<ul class="ui-helper-reset">
</div>
Thank you
I know this is a little old, but in my case i had alot of these widgets on the page. So I did something a little different that worked perfectly.
$("#MyStatusWidget").multiselect({
open: function () {
$(this).multiselect("widget").find("input[type='search']:first").focus();
}
});
When you create your multi select widget simply add the following "open" method.
$("#MyStatusWidget").multiselect({
open: function () {
$("input[type='search']:first").focus();
}
});
For IE10 bowser:
$("#MyStatusWidget").multiselect({
open: function () {
$("input[type='text']:first").focus();
}
});
I haven't tried the first two solutions to see if rrusnak's problems exist. My Solution doesn't have any of the problems rrusnak mentions about the others. This one works with an unlimited number of Selectors on a page and uses simple jQuery along with Eric Hynds recommendations of implementing his multiselect filter system to the multiselect widget:
$("#MyStatusWidget").multiselect({
open: function () {
$(this).multiselectfilter("widget").find('input').focus();
}
}).multiselectfilter({
label: '',
autoReset: true
});
Its clean, can be chained with the other widget options and immediately allows text input without having to first click on the input filter.
IMO Eric should have included an automatic focus in his filter script - as the use of a filter on the widget implies that it is to be used anyway. So having to manually focus to the input field is an unnecessary click for users.
The above two answers worked for me, however there were a number of irritating things with the plugin that happen when the filter is focused. Most notably you can no longer use the arrow keys to select an option, which really takes away keyboard control.
I have implemented a number of changes, that you can find at my github link below.
Fixes tabbing issues with the form
Allows use of the arrow keys to select options while the filter is selected
I have changed the traverse function to be friendly towards filtered lists.
I have changed the traverse function to move up one selection at a time when using the up arrow (instead of going to the top of the list)
Pressing 'f' (or 'ctrl-f') will re-focus on the filter box
Hopefully this helps anyone who has had some of the same issues as myself. The changes are in both the regular multiselect as well as the filter src files.
https://github.com/rrusnak1/jquery-ui-multiselect-widget