I am using an 'Ext.grid.GridPanel' to disaply tabular data, and I am looking for a way to disable selection and focus on the HTML generated.
So far I have seen that using the disableSelection config, works for disable the selection, but is still possible to focus a row or cell in the grid.
To disable focus and selection, I have seen that the disabled config option do what I want, but I was thinking it is rather a side a side effect, as my understading of disabling something something applies ontly to form elements.
Is this a safe practise ?
Try this CSS for your grid to avoid selections
.x-grid-item-selected .x-grid-td {
background-color: transparent;
}
Related
tableDnD (table Drag and Drop) is a jQuery plugin I'm using to be able to re-order rows in my html table. It's a pretty cool library, but the fact that you can click, drag, and drop rows -- disables the ability to select that row by clicking -- it thinks you might be starting a drag and drop, or doing a 0-distance drag.
So you can view my example here, and see what I'm talking about -- http://jsfiddle.net/du31ufts/5/
It starts off as disabled, so enable the row re-ordering and see the library. Then, try to select just one row in the middle. The only way the blue highlighting indicating selection shows up is if you click outside the bounds of the table, and thus you would only be able to select starting from the bottom or top, and not be able to select one row at a time. I need to select these rows to be able to copy-paste these rows into excel.
I've tried looking into the library itself and detaching $('__dragtable_disable_text_selection__'), I've tried jquerys removeAttr for unselectable, I've tried
$('.dragtable-sortable').attr('-moz-user-select', 'none');
Nothing is re-enabling my ability to be able to click and select single rows. I'd like to do this without modifying tableDnD functions.
Which CSS properties could be affecting my ability to select table rows?
Create a textarea somewhere with ID #spot.
Use this code to extract data on click from a row and select it. Its delimited by tab so it should be pastable into excel easily.
$('tr').click(function(){
var copyContent = "";
$(this).children('td').each(function(){
copyContent = copyContent+$(this).text()+"\t";
});
$('#spot').val(copyContent);
$('#spot').select();
});
I asked about this on github and got an answer: It did require modification of the library. Specifically, replacing the if block starting at line 207 of the fiddle in this question with this
if (!$(this).hasClass("nodrag")) {
if (e.target.tagName == "TD") {
$.tableDnD.initialiseDrag(this, table, this, e, config);
return false;
}
}
modified fiddle. Thank you tschqr
I have a custom table which I'd like to use as the DropDown portion as a DropDownList.
Ideally, when users click on a DropDownList, it should show the custom table instead of the usual drop down. I thought it'd be easy to prevent the dropdown from opening without disabling the DropDownList control, however that doesn't appear to be the case.
Is there an easy way to prevent a DropDownList from opening without disabling it?
Edit: This has to work for an embedded IE 7 web browser, and e.preventDefault() does not work in that browser version
You can do something like this:
Basically, I have positioned an invisible div over the dropdown to block it, and you can handle the click with the onclick of the masking div.
EDIT: I have updated this http://jsfiddle.net/EdM7B/1/
<div id='mask' onclick='alert("clicked");' style='width:200px; height:20px; position:absolute; background:white;filter:alpha(opacity=0);'></div>
<select id='selectList' show=1 style='width:200px; height:20px;'>
<option>Test</option>
</select>
I had to use a sort of hack because IE doesn't seem to render divs properly that have no background colour set, so it wasn't working correctly. This works in my IE7.
If you want it to work in all browsers you'll need to add chrome/firefox opacity CSS or have some IE only CSS to apply background colour.
I think due to the way it's positioned above, the opacity is actually not working properly because the element is positioned absolutely, either way it seems to work. I originally had it as opacity 1, but that sounds wrong to me as we want it invisible, so I changed it to 0.
It's possible to stop the dropdownlist from showing by using jQuery's event.preventDefault in the mousedown event (demo: http://jsfiddle.net/RCCKj).
Also see this related question: stop chrome to show dropdown list when click a select
Put it inside a div like this:
<div id="dllDiv" style="width:200px;height:200px;">
< asp:DropDownList ID="DropDownList1" runat="server" style="z-index:-1000px;pointer-events:none;">
< /asp:DropDownList>
</div>
You should set the css property pointer-events to none, then you can show your table hidden in a div or loaded it by using ajax, something like this:
(document).ready(function() {
$("#dllDiv").click(function() {
alert('adasd');
});
});
Have you thought about using a mega menu for this, you can put anything you want in the dropped down portion - for example your table
i have a dropdownlist in aspx (vb.net) that i have 2 dropdownlists. i want to show the second dropdownlist based on the value of first one. they are data wise interconnected, so if after selecting a certain record in first, if the second one has more than one record, the dropdownlist should be visible, else it should remain hidden. am sure this can be done with javascript, but i just dont know how.
thanks
Since the data in the second dropdown is dependent on the selection in the first dropdown you will have to do a postback. You can toggle the second dropdown's visible property to false in the SelectedIndexChanged event of the first dropdown.
If you want to use Javascript you can use AJAX for the postback.
I assume you are ok with getting the data to fill the second dropdownlist. If not, you can do that with javascript using AJAX. You can also do it with a postback (much easier, but worse for the end user).
Here is how to set the second dropdownlist to be invisible or visible: its style property.
hidden:
display: none;
or visible:
display: block;
This link seems to be exactly what you are looking albeit a little complicated.
http://sushantp.wordpress.com/2009/02/22/aspnet-fill-and-show-dependent-drop-down-list-on-client-side-without-server-control-and-postback/
I personally would use AJAX update panels to achieve the effect.
An alternative would be to use jQuery and JSON to build a cascading dropdownlist. There is a nice post on how to achieve this: http://www.codedigest.com/Articles/jQuery/224_Building_Cascading_DropDownList_in_ASPNet_Using_jQuery_and_JSON.aspx
I'm trying to add details to a database by using ajax and table dynamic rows.
e.g.
----
{Customer: dropdown menu} | {Description: textarea} | delete
Add New Customer
---
When the user clicks it shows the drop down menu of all available customers. when you click away it just shows the select customer name (not the dropdown menu)
Similarly with the description i want on click to allow them to edit the description of the text area but when you click away it only shows the text you just entered. (not the text area outline)
Add new customer button creates a new empty row.
What libraries or examples can help me get started with this?
I saw this recently in an application recently. In this application it was possible to add new items/rows via ajax and dynamic HTML.
You should be able to do that easily enough using jQuery (look at the selectors, events & manipulation in their docs). For example, for the dropdown
<span id="customer-name"></span>
<select name="customer-list" id="customer-list">
<option class="name" value="cust-1">Frank Frankson</option>
<option class="name" value="cust-2">John Johnson</option>
</select>
And the jQuery :
$('.name').click(function(){
$('#customer-name').text($(this).text());
$('#customer-list').hide();
});
In that function you could do something with the option element value if needed (an ajax post or whatever).
The principal for changing the Text Area description would be the same (you could grab the text out of the textarea, add it to a div & hide the textarea; if they need to edit again, just show the textarea & hide the div)
Use jQuery.
Use the tokenizing autocomplete plugin for jQuery
For the inplace edit use Jeditable.
I'd stay away from drop downs, they are almost always bad design, whether in a menu or selecting from a long list of options. For something like a list of customers which is hopefully likely to be long it is an awful choice of a UI component.
The only time that it really makes sense to use a drop down is when the list of options is short and well known. So for it to be acceptable it probably has to be a list of options which rarely if ever changes, is less than 10 or so items long, and is used frequently (so it is well known). Drop downs are painful.
Most sites where you see such functionality accomplish it with styling - you can style a text input box to look like plain text (by removing the border and setting the background color to transparent). When the input is clicked on (focused), the style changes:
<style>
.blurredText { border: none; background-color: transparent; }
</style>
. . .
<input type="text" class="blurredText" value="Click me to edit"
onfocus="this.className=''"
onblur="this.className='blurredText'"/>
Styling a select the same way may prove difficult however, since select controls are notoriously resistant to CSS. You can still use the method Dave proposed.
A bit background:
I've got a page with a table and a number of checkboxes. The page is generated in asp.net.
Each row has a checkbox, there's a checkbox in the header, and in certain cells there will be groups of check boxes (you get the picure lots of checkboxes).
Each of these check boxes currently works fine with a little bit of javascript magic in their onclick events.
so you have something like:
<td><input type="checkbox" id="sellRow1" onclick="javascript:highlightRow(this, 'AlternateRowStyle1');"/></td>
Not much of a surprise there then.
Ok so the here's the problem:
So this works fine however I need each of the check boxes to reflect the states of other checkboxes. So for example: the checkbox in the header changes the values of the row checkboxes, changes to the row checkboxes can change the header check box etc.
I know what you're thinking: easy just call that Javascript function highlightRow.
But if I did how would I get the parameters (ok the this is easy but where on earth could I get that 'AlternateRowStyle1'?)
So I guess the question is: Where do I put those parameters so I can get at them with JS in a nice cross browser way. (<PossibleRedHerring>tried putting custom attributes on each checkbox but wasn't sure that was the correct way to go</PossibleRedHerring>), also I'd prefer not having to keep calling back to the server if that's at all avoidable.
(btw sorry if this is a bit badly formatted / written, I'm extraordinarily tired!)
Update:
Ok so in the end I managed to dodge the custom attributes as noticed that there was a hierarchy to the check boxes. This meant I was able to trigger the click event of the child checkboxes (which inturn would call it's childrens' click event etc) luckily in this case the flow will never go in the opposite direction causing an infinite loop (there are a lot of comments / documentation to point this out!)
The only interesting thing with this is the difference between click events in IE and in firefox, chrome and safari. IE allows anything to have a click where as the others limit click to INPUT elements of type button, checkbox, radio, reset or submit. I kind of wanted to use event bubbling to attach the click events to an element that contained a group of checkboxes.
In the end went with a bit of a hack:
// In IE every element supports Click wilst Firefox (also chrome and safari) only supports INPUT elements of type button, checkbox, radio, reset or submit
// https://developer.mozilla.org/en/DOM/element.click
// this function allows both browers to support click on all elements
function FireClickEvent(element)
{
if (element.click)
{
element.click();
}
else
{
// We don't have a click on this element, so add our own.
var evt = document.createEvent("MouseEvents");
evt.initMouseEvent("click", true, true, window, 0, 0, 0, 0, 0, false, false, false, false, 0, null);
element.dispatchEvent(evt);
}
}
Think that could be somewhat improved but it does the business for now.
Should also admit this was my first shot at proper javascript. It's a bit of a scary language (esp when hitting the dom!) interesting though, am looking forward to spending a bit of time delving in further.
you can do this quite easily by using jquery. you can define some custom attributes on the checkboxes depending upon their position and pick up the value of attributes on click and manipulate the css of rows, checkbox the way you want.
thats how you can define alternate row color for the table using jquery
$("table tr:nth-child(even)").addClass("striped");
<style>
.striped{
background-color:#efefef;
}
</style>
I think custom attributes is indeed your solution, can't see any problem with that. Although I would put something like an alternate-row-style as an attribute of the row, and not as an attribute of the checkbox.
If I understand you correctly; you want to be able to klick on the header and all the checkboxes in that same row will be checked?
I would set a cssclass for the "th"-element and use that same class on each of the "td"-elements.
I would place the alternating class on every second "tr" element. That way you can style differently if it's an alternating item or not.
I would also use jQuery to easily create the js-code.
I would NOT add custom attributes since... well you can't just add your own imaginary attributes, that's why we have html-standards.