I want to use template.find (in Templates.xxx.events) to get the value of the checked radiobutton of a radiobutton group. In jquery I would use $('input:radio[name=XXXXX]:checked').val(). That does not work with template.find. template.find('input:radio[name=XXXXX]:checked')returns null.
What should I be using as CSS selector for this task?
Your selector looks right, so it could be just the way you are calling it. Maybe this example will help:
html
<template name="animals">
<form>
<input type="radio" name="animal" value="cat">Cat<br>
<input type="radio" name="animal" value="dog">Dog<br>
<input type="button" value="Click">
</form>
</template>
js
Template.animals.events({
'click :button': function(event, template) {
var element = template.find('input:radio[name=animal]:checked');
console.log($(element).val());
}
});
Here I'm still using jquery to extract the value, but it demonstrates the selector working.
Related
I have a (unchangable) form structure like this:
<div class="form-group">
<div class="col-sm-3 control-label">
<label for="frm-registrationForm-form-surname">Surname:</label>
</div>
<div class="col-sm-9">
<input class="form-control text" id="registration-form-surname" type="text" name="surname" required>
</div>
</div>
Is there possible to add the asterisk * sign next to all the labels relying to the inputs with "required" attribute using the CSS? I did not find any option to link the input with the label in CSS even in the same form group.
Thanks.
Using jQuery.
First solution. If .form-group has only one input and label elements.
$(document).ready(function () {
$('input[required]').parents('.form-group').find('label').append('*');
});
Second solution. Working only of your label for and input id attributes the same
$(document).ready(function () {
$("input[required]").each(function(index) {
var id = $(this).attr('id');
$('label[for="'+id+'"]').append('*');
});
});
I would recommend you to use the second solution.
You can use jQuery to implement this functionality. Inside document.ready function,
var str ='*';
$(".control-label").append(str);
Entire script would be
$(document).ready(function () {
var str ='*';
$(".control-label").append(str);
});
I want to include a Blaze template with an argument and then use the argument value in an event. The problem is that when I include the template a second time with a different argument I get the argument value from the first instance of the template in events.
Template:
<template name="UploadFormLayoutImage">
<form class="uploadPanel">
<input type="file" name="fileupload" id="input-field">
<label for="input-field">Upload file</label>
</form>
</template>
Include:
{> UploadFormLayoutImage layoutArea="area1"}}
{> UploadFormLayoutImage layoutArea="area2"}}
js:
Template.UploadFormLayoutImage.onCreated(function(){
this.currentArea = new ReactiveVar;
this.currentArea.set(this.data.layoutArea);
});
Template.UploadFormLayoutImage.helpers({
layoutArea: function() {
return Template.instance().currentArea.get(); //Returns the correct argument value for each instance of the template.
}
});
Template.UploadFormLayoutImage.events({
'change input[type="file"]': function(e, instance) {
e.preventDefault();
console.log(instance.data.layoutArea); //Allways returns 'area1'
}
});
What am I missing here? (This is my first Stackoverflow question. Please be gentle :))
What if you change the instance.data.layoutArea in your events method to this.layoutArea?
In my effort to make the code example easy to read i stripped away the part that caused the problem. I'm using a label for the input field and therefore the input field has an id and thats of course not ok when repeating the template.
I now use the layoutArea-helper as an id value and every thing works just fine.
<template name="UploadFormLayoutImage">
<form class="uploadPanel">
<input type="file" name="fileupload" id="{{layoutArea}}">
<label for="{{layoutArea}}">Upload file</label>
</form>
</template>
I want to find the default tab index of the form.
I have not given but still all the control has the tab index. I want to find that default tab index through the j query. How can i find that?
Jquery and tab-index
The way tabindexing works is that it goes trough your html markup and looks for tabable elements.
So say you have this code:
<form>
<label>Name:</label>
<input type="text" />
<br>
<input type="submit" />
</form>
The text input will be tabbed first, and then the submit input.
Yes i know this how do it get the tabbing?
$(function() {
$firstinput = $("form").find("input")
console.log($firstinput.first()); //prints the first element thats an input.
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<form>
<label>Name:</label>
<input type="text" />
<br>
<input type="submit" />
</form>
The code above will only work if you only have input elemtns and add not trickery to the markup like hiding your elements etc.
In the code below im using the jquery UI :focusable selector.
With this you should get the first tabbable element in your form
//:focus selector from jquery UI
$.extend($.expr[':'], {
focusable: function(element) {
var nodeName = element.nodeName.toLowerCase(),
tabIndex = $.attr(element, 'tabindex');
return (/input|select|textarea|button|object/.test(nodeName) ? !element.disabled : 'a' == nodeName || 'area' == nodeName ? element.href || !isNaN(tabIndex) : !isNaN(tabIndex))
// the element and all of its ancestors must be visible
// the browser may report that the area is hidden
&& !$(element)['area' == nodeName ? 'parents' : 'closest'](':hidden').length;
}
});
//actual code
$(function() {
$form = $("form");
$first = $form.find(":focusable").first();
console.log($first);
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<form>
<label tab-index="0">Name:</label>
<input type="text" />
<br>
<input type="submit" />
</form>
You can search for 'tabindex' attribute with jquery.
var tabindexVal = $('selector').attr('tabindex');
To improve navigation on one of the pages I am tyring to set a focus on a next available(enabled) button when leaving last data entry field.
$('input[type=text], select, textarea').filter(':last').blur(function()
{
$('input[type=submit][type=button]:enabled:first').focus();
});
For some reason it only works when last data entry field is textbox. Something is wrong in the handler.
$(document).ready(function() {
$(':text,textarea,select').filter(':last').blur(function()
{
$(':button,submit:enabled:first').focus();
});
});
<body>
<textarea rows="3" /></textarea>
<select>
<option>1</option>
<option>2</option>
</select>
<input type="text" />
<input type="button" value="Something" />
</body>
Did the trick ... pretty much identical, so I don't know what's not working for you.
$('input').filter(':last').blur(function()
{
$('input:enabled:first').focus();
});
doesn't do the trick?
Assign the buttons a CSS class and try $('.ButtonClass:enabled:first').focus();
Another jQuery noob question - what am I doing wrong??
I have some HTML markup rendered by ASP.NET 3.5 webforms which looks like this:
<input id="ctl01_cphContent_pnlBasicInfo_chkRC"
type="checkbox" name="ctl01$cphContent$pnlBasicInfo$chkRC" />
<label for="ctl01_cphContent_cntPromos_pnlBasicInfo_chkRC">Recurrent Charges</label>
<span id="ctl01_cphContent_cntPromos_pnlBasicInfo_lblPromoValidFor"
class="rcPromo">Validity:</span>
<span class="rcPromo">
<input id="ctl01_cphContent_pnlBasicInfo_rbnDiscountValidFor"
type="radio" name="ctl01$cphContent$pnlBasicInfo$discountValidFor"
value="rbnDiscountValidFor" checked="checked" />
<label for="ctl01_cphContent_cntPromos_pnlBasicInfo_rbnDiscountValidFor">valid for</label>
</span>
<span class="rcPromo">
<input id="ctl01_cphContent_pnlBasicInfo_rbnDiscountValidUntil"
type="radio" name="ctl01$cphContent$pnlBasicInfo$discountValidFor"
value="rbnDiscountValidUntil" />
<label for="ctl01_cphContent_cntPromos_pnlBasicInfo_rbnDiscountValidUntil">valid until</label>
</span>
<input name="ctl01$cphContent$pnlBasicInfo$txtDiscountMonths" type="text"
id="ctl01_cphContent_pnlBasicInfo_txtDiscountMonths"
class="textbox" class="rcPromo" originalValue="" style="width:30px;" />
<span id="ctl01_cphContent_cntPromos_pnlBasicInfo_lblMonths" class="rcPromo"></span>
<input name="ctl01$cphContent$pnlBasicInfo$txtDiscountUntil" type="text"
id="ctl01_cphContent_pnlBasicInfo_txtDiscountUntil"
class="textbox" class="rcPromo" originalValue="" style="width:150px;" />
I have a checked "chkRC" which I want to trap and use to enable/disable other UI controls
I have a number of labels, input (type=radio) and input (type=text) UI controls. These are all marked with the "rcPromo" dummy CSS class
I have a CSS class called "textbox" for the normal textbox and "textboxDisabled" for the disabled state of the textbox, in an externally referenced CSS file, that work OK (when used in server-side code, that is)
What I'm trying to accomplish in jQuery is this: when the "chkRC" checkbox is disabled, I want to disable all relevant UI controls.
My jQuery looks like this:
$(document).ready(function() {
$("#<%= chkRC.ClientID %>").click(function() {
$('.rcPromo > :label').toggleClass('dimmed');
if (this.checked) {
$('.rcPromo').removeAttr('disabled');
$('.rcPromo .textboxDisabled').addClass('textbox').removeClass('textboxDisabled');
}
else {
$('.rcPromo > :input').removeAttr('checked');
$('.rcPromo .textbox').addClass('textboxDisabled').removeClass('textbox');
$('.rcPromo').attr('disabled', true);
}
});
});
It works fine for the labels and the radiobuttons - but I just can't get it to work with the textboxes - they just stay the same all around, nothing changes (they don't get disabled and they don't change their appearance to indicate that they're disabled, either).
I don't understand this - I do see several (a few more than in the sample) textboxes, which are <input type="text"> in HTML, and they do have the class="rcPromo" and class="textbox" on them - so why doesn't jQuery find and update those?
Any ideas?
Marc
I can't think of a way to augment the css class names that are assigned to controls from the skin file (phoenix is correct, the class names need to be added in the same attribute).
I can think of a few workarounds though:
--> You can wrap all the textboxes you want disabled in a div with a given class:
<div class="disable_textbox"><asp:textbox id="".../></div>
and then disable them by selecting:
$('.disable_textbox input').attr('disabled', true);
--> You can include character strings in the ID of the textboxes you want disabled:
<asp:textbox id="txtDiscountUntil_DisableMe" ... />
and then disable them like so:
$("input[id*='DisableMe']").attr('disabled', true);
--> You can add a custom attribute to your textbox:
txtDiscountUntil.Attributes.Add("disableme", "true");
and then disable them like so:
$("input[disableme='true']").attr('disabled', true);
Your HTML markup is not the correct one.
You can't add two classes like the one in your code.
Two classes can be added like this
<input type="text" class="Class1 Class2" />
and not like
<input type="text" class="Class1" class="Class2" />
Why don't you use hasClass to check whether the element has this class set or not?
I think you have to give this in an OR condition for the two classes.