The reason I want to use the together is that I want to hide the content like display: none does, without leaving any whitespace as visibility: hidden does.
At the same time I want the hidden content not to be copied when the user copies the entire table from the webpage, not because it is sensitive information but because the user hid the field and therefore doesn't want it copied. visibility: hidden doesn't copy but display: none does, so I have quite a dilemma.
Anyone know a solution?
Edit:
What I ended up doing was just what was suggested, save the information as Javascript (as it is not sensitive information anyways) and create/remove dynamically with Javascript.
I do not think giving the element visibility: hidden prevents the user copying the information in the table, although this may be browser specific behavior. Have a look at the test I've set up: http://jsfiddle.net/a9JhV/
The results from Firefox 3.6.8 on Windows 7 is
Copy ME! Don't copy me :( Copy ME! Copy ME!
Copy ME! Don't copy me :( Copy ME! Copy ME!
Which doesn't work as expected.
I've cooked up some code, it took the quite a bit work of cook up... have a look here: http://jsfiddle.net/a9JhV/7/
It uses jQuery to hide and show the table columns - actually removes them from the DOM, not just play around with their visibility and whatnot. Whee!
Why not remove the node from the page? You could accomplish this by using:
<script type = 'text/javascript' language = 'JavaScript'>
document.getElementById('yourDivId').innerHTML = '';
//OR
document.removeChild(getElementById('yourDivId')); //(I think this is right...document might need to be replaced by the div's parent)
</script>
You should remove the "hidden" DOM object using javascript and then recreate it again if user wants it back. Data from deleted records can be stored in session storage or hidden inputs for example.
If you want elements HIDDEN from the source, place them in a separate text file and load it using an ajax-like call... this will prevent the html from being in the source.
If you place a clear image OVER the content they also will not be able to highlight it easily (and by using javascript you can likely disable their ability to do a ctrl+a)
hope that helps!
It's a good idea to create an object to represent the table:
var myTable = function(tableName){
// If you want to assign columns dynamically you could create this.addColumn();
this.Columns = new Array(
new Array("row1","row2","row3","row4"),
new Array("row1","row2","row3","row4")
);
this.reBuild = function(){
for (col in this.Columns){
for(row in this.Columns[col]){
// put the cell in the table
}
}
};
};
I didn't test this code, it should just illustrate the gist of storing and building a table.
Related
I'm working on a web app and users sometimes paste in things they've copy/pasted from other places and that input may come with the character (0xAD). I don't want to filter it out, I simply need the user to see that there is an invisible character there, so they have no surprises later.
Does anyone know a way to make the always be visible? To show a hyphen, rather than remain hidden? I suspect a custom web font might be needed, if so, does anyone know of a pre-existing one?
You would need to either use JavaScript or a custom typeface that has a visible glyph for the soft-hyphen character. Given the impracticalities of working with typefaces for the web (and burdening the user with an additional hundred-kilobyte download) I think the JavaScript approach is best, like so:
document.addEventListener("DOMContentLoaded", function(domReadyEvent) {
var textBoxes = document.querySelectorAll("input[type=text]");
for(var i=0;i<textBoxes.length;i++) {
textBoxes[i].addEventListener("paste", function(pasteEvent) {
var textBox = pasteEvent.target;
textBox.value = textBox.value.replace( "\xAD", "-" );
} );
}
} );
Some background information, I am using ASP.NET with the MVC framework and html helpers.
I currently have a dynamic table where each row has a series of input boxes. Each of these input boxes has a validation message. This works completely fine for the first row. However, when other rows are dynamically added (with the IDs' being changed along with other attributes to match the row number) the validation message no longer works.
Both the row and validation message span are being replicated properly.
In JQuery, this is usually just a problem with the binding, so for each row I would simply re-bind the IDs'. However I am not really to sure how to approach them in ASP.NET.
Any assistance would be appreciated.
Thanks
Alright, I have finally figured this out.
In MVC, in order to handle the validation, it import a JQuery file known as jquery.validate.unobtrusive.js.
However, similar to JQuery, this only occurs at the very beginning when the page is loaded. So, when you add a new dynamic element, you need to remove the bindings and the re-bind them again.
Basically, in your function for adding a new element, put the following lines of code AFTER you have added the new element:
$("#form").removeData("validator");
$("#form").removeData("unobtrusiveValidation");
$.validator.unobtrusive.parse("#form");
For example:
function addInfoDynamic()
{
document.getElementById("#myDiv").innerHTML += "New Content";
$("#form").removeData("validator");
$("#form").removeData("unobtrusiveValidation");
$.validator.unobtrusive.parse("#form");
}
I'm trying to on page load get my html table to load at a specific column, I wouldn't even know where to start with this.
I've uploaded it here to see a demo: http://jsfiddle.net/3EFqD/
I've tried this in my body tag:
onload=' location.href="#right_column" '
and added id='right_column' to the correct td but that didn't work
Trying to get it to load on the cell that is labeled "this one"
Here's a fiddle incorporating the width of the header: Fiddle
Again, a jquery solution, essentially the same as above but needs to subtract the header width to hit the right position. See the fiddle for where the id's are added
$(document).ready(function(){
var hw = $('#headerWidth').width();
var f = $('#scrollToMe').position().left - hw;
$('.inner').scrollLeft(f);
})
If Im right in thinking you want a specific column to be scrolled to on page load, the easiest way would be to use a library, e.g. jQuery:
$('.inner').stop().animate({
scrollLeft: $('#right_column').offset().left
}, 1000);
Demo Fiddle
You're trying to make it work in a similar way to using anchors- however this isnt possible for horizontally aligned content.
May be if you are trying to load some html code(like table) in the mentioned td(This one), as you mentioned add id=right_column to this td and then use the below jquery logic -
var newtable = '<table class="newtable">New table, this may be from ajax call also</table>'
$('#right_column').html(newtable);
Is it possible to make a whole table as link?
I have a table which displays some statistical data, I wish to add up an additional functionality to this table so that .. when a user clicks on any part of the table, webpage should guide him/her to new page.
It's not really possible. However, it can be easily emulated with JavaScript. You just need to asign an onclick event handler to the table and make it change the document.location property:
var myTable = document.getElementById("my-table");
myTable.onclick = function(){
document.location.href = "http://example.com";
}
You can also provide and adequate cursor with some CSS:
table#my-table{
cursor: pointer;
}
put a around your table
The biggerLink plugin for jQuery does pretty much what Álvaro G. Vicario suggested and it has a few extra niceties such as title attribute handling and :hover handling.
I want to store some additional data on an html page and on demand by the client use this data to show different things using JS. how should i store this data? in Invisible divs, or something else?
is there some standard way?
I'd argue that if you're using JS to display it, you should store it in some sort of JS data structure (depending on what you want to do). If you just want to swap one element for another though, invisible [insert type of element here] can work well too.
I don't think there is a standard way; I would store them in JavaScript source code.
One of:
Hidden input fields (if you want to submit it back to the server); or
Hidden elements on the page (hidden by CSS).
Each has applications.
If you use (1) to, say, identify something about the form submission you should never rely on it on the server (like anything that comes from the client). (2) is most useful for things like "rich" tool tips, dialog boxes and other content that isn't normally visible on the page. Usually the content is either made visible or cloned as appropriate, possibly being modified in the process.
If I need to put some information in the html that will be used by the javascript then I use
<input id="someuniqueid" type="hidden" value="..." />
Invisible divs is generally the way to go. If you know what needs to be shown first, you can improve user experience by only loading that initially, then using an AJAX call to load the remaining elements on the page.
You need to store any sort of data to be structured as HTML in an HTML structure. I would say to properly build out the data or content you intend to display as proper HTML showing on the page. Ensure that everything is complete, semantic, and accessible. Then ensure that the CSS presents the data properly. When you are finished add an inline style of "display:none;" to the top container you wish to have dynamically appear. That inline style can be read by text readers so they will not read it until the display style proper upon the element changes.
Then use JavaScript to change the style of the container when you are ready:
var blockit = function () {
var container = document.getElementById("containerid");
container.style.display = "block";
};
For small amounts of additional data you can use HTML5 "data-*" attribute
<div id="mydiv" data-rowindex="45">
then access theese fields with jQuery data methods
$("#mydiv").data("rowindex")
or select item by attribute value
$('div[data-rowindex="45"]')
attach additional data to element
$( "body" ).data( "bar", { myType: "test", count: 40 } );