I have asked this same basic question before several times without a response, but let me try one more time, breaking it down as simple as possible.
I have a strongly-typed view with a hidden field on it.
When the view renders server-side, I am setting the value of the hidden field to a property of the model.
When the view renders client-side, I want to get the value of the hidden field (that was set during the server-side render) and display it in a java script alert box.
This should be a simple thing to do and yet I am unable to make it work. I have set a break-point in the view and I can see that the hidden field is being set to the correct value. But the javascript will not display that value.
The page/view being rendering has been gone to before. At the time I want to display this alert, I am going back to that page and now I want to see the alert.
It is as if the page is being cached, so instead of using the new value for the hidden field it is using the old value (from the first time the page was visited). If the DOM is being cached, how I can prevent that so that each time I visit the page I get the updated values of the page and not the cached ones? What am I doing wrong??
#<input type="hidden" id="hdnShowMsg" value="#Model.ShowMsg" />
<script>
alert($('#hdnShowMsg').val());
</script>
Your script may be firing before your document is fully rendered. Use the jQuery document ready function.
http://api.jquery.com/ready/
<script>
$(function() {
alert($('#hdnShowMsg').val());
});
</script>
Also note that document ready is not supported within a jQuery Mobile document and you may run into problems depending on what part of the DOM you are trying to manipulate.
Use $(document).bind("pageinit", function() {}) instead.
http://jquerymobile.com/demos/1.2.1/docs/api/events.html
I want to increase the size of the Calendar view because the default size is too small for my web application. I've tried to add a cssClass to the datetimepicker tag but it doesn't work, even if I change the width or height the only thing it changes is the field, not the calendar itself.
I'll put an image so you can understand better the problem that I have:
The thing is that the text from the field is correctly viewed, but when I click the calendar button, it shows that tiny view and it's extremelly difficult to pick one date.
The code for the datetimepicker is this:
<sx:datetimepicker name="start_date" displayFormat="dd-MMM-yyyy" value="%{'today'}" />
Any guess?
Ok, It's finally solved:
First I tried to find the file named datefilepicker.ftl inside the struts2-core.jar but I didn't find anything similar.
So after a few hours trying to find which was the correct template of datetimepicker without any luck, I tried to solve my problem using JQuery because when I was searching for the answer I found out a datepicker tutorial using this library.
There's a plugin called Struts2-JQuery that provides you with ajax functionality and therefore with multiple customizations in different widgets.
It's quite easy to install, I just had to download the correct .jar which for me it was Version 3.5.1 ( jQuery 1.8.3, jQuery UI 1.9.2 ). Once I'd downloaded the file, I just had to paste it in the lib folder inside my project. After doing that, I added this line at the beginning of the .jsp file:
<%# taglib prefix="sj" uri="/struts-jquery-tags"%>
With these steps I had jquery functionality inside my .jsp file, so the only thing left to do is to add the datepicker widget:
First I chose the jquerytheme I wanted for my widget, just like this:
<head>
<sj:head jquerytheme="flick"/>
...
</head>
And then, I added my datepicker widget:
<sj:datepicker name="start_date" displayFormat="dd-MM-yy" value="today"/>
And that's it.
If you want to resize the datepicker calendar see the answer of this post:
How to resize the jQuery DatePicker control
<sx:datetimepicker name="start_date" displayFormat="dd-MMM-yyyy" value="%{'today'}" />
It is a dojo tag, so you should be changing the template file corresponding to this tag
Freemarker changes
check for something like datetimepicker.ftl in your workspace. That would be the file rendering your calendar. Any presentation related changes will be done in that file only.
debug using firebug
Another approach can be using firebug in Mozilla firefox and manually try to change the html rendered by the tag. There might lie some CSS solution to your problem
I am using jquery.ui.datepicker in asp.net mvc3 on windows 7.I changed my system date format as
mm/dd/yyyy
to
yyyy-mm-dd
Then my project calender format also changed and default dates coming.Some times date picker calender is not showing.
Can anyone tell me how to solve this issue
Sangar82's answer is the most complete and correct (I upvoted it for that reason) but a quicker way of just setting the format without creating/downloading a localisation file is:
$(".dateinput").datepicker({dateFormat: 'dd/mm/yy'});
Try to use Datepicker Localization
The date picker is designed to allow localizations to be easily created and used. Many localizations are already available, and additional ones are welcomed.
The date picker plugin maintains a manager object, $.datepicker, that lets you register new localizations. This object maintains an array of localization settings indexed by language, with '' accessing the default (English) version: $.datepicker.regional['fr'].
A new localization should be created in a separate JavaScript file named ui.datepicker-.js. Within a document.ready event it should add a new entry into the $.datepicker.regional array, indexed by the language code.
http://docs.jquery.com/UI/Datepicker/Localization
Code:
$('selector').datepicker($.datepicker.regional['<language>']);
Example
$('.myinput').datepicker($.datepicker.regional['fr']);
When you download the Jquery UI you can find in the following folder the translation of datepicker on several languages (69 translations)
development-bundle/ui/bundle/i18n
Example of use:
<script type="text/javascript" src="js/ui/development-bundle/ui/bundle/i18n/ui.datepicker-fr.js"></script>
<script type="text/javascript">
$(function() {
$.datepicker.setDefaults($.datepicker.regional['fr']);
$("#StartDate").datepicker();
});
</script>
This question comes out making use of the HTML helpers in ASP.NET MVC and jQuery. For example, if I define an extension method like the following:
<:% Html.DatePickerFor(x => x.StartDate) %>
I would want it to make use of the jQuery DatePicker. However, this either means I need to manually add to the header the invocation of the DatePicker method (in which case there is no point to the DatePickerFor method), or clutter up the HTML with a whole bunch of script tags that are invoked upon document.ready.
One thought I had was the idea that instead of add the appropriate jQuery UI behavior to a HTML element via Javascript, you could do it via additional attributes, such as the following:
<input id="foo" css="widget-ui-datepicker" widget-alt-field="#fooalt" />
jQuery could then just looks for all elements with the right css class and collect together all the widget-* values and use them to build the "options" that is used to invoke the datepicker method in the first place.
This is the type of idea that could go directly into the widget factory. What are people's thoughts on this?
I typically have this line in my master page:
$(".datepicker").datepicker();
and then just stick the datepicker class on any textbox that I want to use it on.
but it would be a timesaver to have an extension method instead of always writing new { #class: "datepicker" }
I like it.
I'm working with a dynamic DOM here, and have called the jQuery UI datepicker to all inputs with a specific class name, in this case .date
It works great with the first, static, construct but when I clone it the event handlers don't seem to want to move over. I get the Firebug error:
inst is undefined
I tried looking into jQuery's new live() function but couldn't combine the two. Any ideas?
Ah, got it. Right after I append the HTML to the DOM I run this on all the inputs I'd like to have a datepicker pop up with. Datepicker adds a class to elements it has been attached to, so we can filter out existing inputs and only apply it to new ones.
$('.date').not('.hasDatePicker').datepicker();
I hope this helps people as I was Googling for days and didn't find anything!
You should also note that it would be faster to check for input.date in the new generated HTML by setting that as a context, rather than the whole page, as it will save time, due to this being a more efficient operation.
I had a similar Issue, I had multiple tables on a page and each had multiple datepickers, also on click of button "AddLine" it added a table row with dynamic HTML and datepicker.
I realized after a lot of search that my input date fields had no "id" defined they looked like this
<input type="text" class="datepicker" name="mDate1" value="" size=8 >
jquery was pointing all the date fields values to the very first date field defined on page, the calendar would popup on all the date fields but the value of 1st date field would change, I made a change to the html like this
<input type="text" class="datepicker" id="Date1" name="mDate1" value="" size=8 >
by adding a "id" and it started working, for the dynamic date fields I change the Id like this
var allColumns = $("#"+$tableId+" tr:last td");
$(allColumns).each(function (i,val) {
if($(val).find(":input").hasClass("datepicker")){
$(val).find(":input").attr("id",newId+$(val).find(":input").attr("id"));
}
});
You need to use the 'live' event to make it work with dynamic DOM. So, if the class for your datepicker inputs is 'date-input', following code will make it work:
$(document).ready(function() {
$('.date-input').live('click', function() {
$(this).datepicker('destroy').datepicker({showOn:'focus'}).focus();
});
});
This might be a little late, but all the suggestions above didn't work for me, I came up with an easy solution for this.
First, what is causing the problem:
JQuery assign datepicker to element id. if you are cloning element, then same id might be cloned as well. which jQuery doesn't like. You might end up with either receiving null reference error or the date being assigned to first input field regardless which input field you click on.
Solution:
1) destroy datepicker
2) assign new unique ids to all input field
3) assign datepicker for each input
Make sure your input is something like this
<input type="text" name="ndate[]" id="date1" class="n1datepicker">
Before you clone, destroy datepicker
$('.n1datepicker').datepicker('destroy');
After you clone, add these lines as well
var i = 0;
$('.n1datepicker').each(function () {
$(this).attr("id",'date' + i).datepicker();
i++;
});
and the magic happens
Use
$j(id or class).removeClass('hasDatepicker').datepicker();
It is working
Use jQuery selectors:
$(".mydatepicker:not(.hasDatepicker)").datepicker()
Multiple instances of the jquery-ui library on the page will cause this error too. Removing redundant instances work for my case
I experienced the same symptom, in this caused by having a td containing element with the same id attribute as the input,
<td id="fld_xyz"><input id="fld_xyz" class="date" /></td>
I know this isn't ideal anyway, but it's worth knowing that the datepicker component seems to be relying on the uniqueness of the id.
I had this problem. My situation ended up being I had another element with the same ID as the input with the datepicker.
Today I faced the same issue... I am using datetimepicker plugin in my application.
Also using jquery's default datepicker too. When ever I am invoking them both on document ready I am getting the error inst is undefined.
$(document).ready(function(){
$(".datepickerCustom").datetimepicker();
$(".datepicker").datepicker();
$("#MainForm").validationEngine('attach');
....
});
So I changed the code to invoke before document ready like below:
$(".datepickerCustom").datetimepicker();
$(".datepicker").datepicker();
$(document).ready(function(){
$("#MainForm").validationEngine('attach');
....
});
Now every thing is working fine. No problems.
I had a similar problem with data picker not working after a first call. I found an answer to my issue here:
http://www.stemkoski.com/problem-with-jquery-ui-datepicker-dynamic-dom/
I was cloning sections dynamically from template and inadvertently including the class that datepicker adds once its called:
hasDatepicker
I placed my first datepicker call after I clone the template and that did it. I then added a datepicker call after each instance of clone:
$(source).clone().appendTo(destination).find(".datepicker").datepicker();
After trying many of the answers here, this is what worked for me and is showing on the first click/focus
function vincularDatePickers() {
$('.mostrar_calendario').live('click', function () {
$(this).datepicker({ showButtonPanel: true, changeMonth: true, changeYear: true, showOn: 'focus' }).focus();
});
}
this needs that your input have the class 'mostrar_calendario'
live is for JQuery 1.3+ for newer versions you need to adapt this to "on"
See more about the difference here http://api.jquery.com/live/
If it still doesn't work, it is because of the cloned id. You can completely remove datepicker like this:
$(selector).removeClass('hasDatepicker').removeAttr('id').datepicker();