center button after change display mode - javascript

I have a problem with centering a button after I set it to display: block.
I've got a table:
<table border="0" id="contacts" width="100%">
<tr><td><div align="center"><button style="width:200px;">btn1</button></div></td></tr>
<tr><td><div align="center"><button style="width:200px;">btn1</button></div></td></tr>
</table>
Both buttons are centered in the table. Now I switch the visibility with:
document.getElementById("contacts").style.display = "none";
The table and buttons are invisible. After I switch the visibility back with:
document.getElementById("contacts").style.display = "block";
The buttons are aligned to the left. How can I center the buttons again?

First, do not use a table structure for formatting. Tables have their place, but using them as HTML scaffolding is so 1990. Instead, use DIVs with css.
Break your page up into several outer boxes, or containers. (For this, you can use DIVs - you can use DIVs for just about all containers - or sections or other container elements depending on your need for extra SEO cred.)
Within each outer container (div), you then subdivide into the type of layout you need (again, using divs). Then, within each sub-area, again use divs (or other container element) to do any further sub-divisions.
So, how to size / position all these things? Use CSS.
In css, there is a reason why the most important change from Bootstrap3 to Bootstrap4 is moving from floats to flexbox. Floats was the old way to position items; flexbox (and CSSGrid) are the new way. Flexbox is dead easy.
Flexbox requires two things:
A parent container (e.g. DIV, section, aside, p, etc)
One or more child elements (e.g. div, p, img, etc)
Here is an excellent 5min video tutorial
Here is a great cheatsheet

You would use document.getElementById("contacts").style.display = "table";

You could also give it a class "align-content-center" in this example
<table border="0" id="contacts" width="100%">
<tr>
<td>
<div class="align-content-center">
<button style="width:200px;">btn1</button>
</div>
</td>
</tr>
<tr>
<td>
<div class="align-content-center">
<button style="width:200px;">btn1</button>
</div>
</td>
</tr>
</table>
and then just style your div around the buttons
.align-content-center{
width: 100%;
text-align: center;
}

Related

css --> <table> --> remove vertical space when table data contains several elements

I have a table data field that contains a blue square on the top and an icon on the bottom.
See this JsFiddle.
The height of the td field is 26px because there is a small vertical space between the blue_line div element and the user_icon image:
I want that this vertical space is removed and the new height is 20px
I was able to do that by adding position: absolute;:
But in my application I use jquery.ui.resizable which gives me problems if I add position: absolute; to the .blue_line div element.
My Question is if there are other ways to remove the vertical space ?
You can change the display of the td Element to grid
<td style="display: grid;">
<div class="blue_line"></div>
<img class="user_icon" src="http://findicons.com/files/icons/1008/quiet/128/opera.png"/>
</td>
Unfortunately this property does not exist in Internet Explorer. If you want to support IE you'll have to add some more styling and change the display of the td Element to block and the children's to flex
<td style="display: block;">
<div class="blue_line" style="display: flex;"></div>
<img class="user_icon" style="display: flex;" src="http://findicons.com/files/icons/1008/quiet/128/opera.png"/>
</td>
I think you can use background-image property and set the background-position

How do I left align the one table and right align the other table that uses the same class?

Initially, I can't change the class name for instance:
<table class="firsttable"> This is the firstable that must be left align
<tbody>
<tr>
<td>
<table class="firsttable"> And this is the second table that must be center align
<tbody>
<tr>
<td>
How do I code it in css?
You can use below CSS, It works as intended
<style>
.firsttable:nth-child(1) { text-align:left; }
.firsttable:nth-child(2) { text-align:right; }
</style>
It's CSS3 though.
First table CSS selector:
.firsttable:first-of-type
If second table is last:
.firsttable:last-of-type
Otherwise, second table CSS selector is this:
.firsttable:nth-of-type(2)
Use ids:
HTML:
<table class="firsttable" id="table1">
...
</table>
<table class="firsttable" id="table2">
...
CSS:
#table1 {
text-align:left;
}
#table2 {
text-align:right;
}
Does this work?
In this case it is better or from my sense I always make it by adding an inline style in the table and I think their no need to create any other style for it in CSS.
<table class="firsttable" style="text-align:left"> This is the firstable that must be left align
And the second table may be another inline style of text-align:center
<table class="firsttable" style="text-align:center"> And this is the second table that must be center align
It is the best approach. But you can also can create some different id here or
.firsttable:nth-child(1) { text-align:left; }
.firsttable:nth-child(2) { text-align:center; }
Problem in this is if you use it then if another table appear in this web page area than it will arise a problem. So it is better to use inline style in this case.
If you want to move the table to the left and one to the right add the following to the appropreate table.
For the align right. Add this at the opening tag <table>.
style="float:right;"
For the algin left add the same code to the exactly same place but change the "left" to "right" depending on where you want it to be.
To aling text do as the other people have seggested.
J. Carter :)

Hide element issue

So I am trying to hide a DIV that sits inside a td. Issue I am facing is that the attached code fades the div perfect fine but the table space stays there. How do I make this table space disappear completely?
Table:
<table width="100%" id="myTabDiv">
<tr><td align="center"><div id="innerDiv"> This disappears </div></td> </tr>
</table>
Just to clarify, the solution was to wrap the table in another div and hide that div instead.

ol outside of table element

I just try a table with <ol> as list elements with which it is possible to insert new table row.
<table>
<thead>
<tr>
<th>head</th>
<th>head</th>
<th>head</th>
<th>head</th>
</tr>
</thead>
<tbody>
<ol id="list">
<li><tr><td>row</td><td>row</td><td>row</td></tr></li>
</ol>
</tbody>
However, I have the problem that the element appear outside of my tables. When I add dynamically content via .append(), the formatting is not taken some elements gets removed.
Jsfiddle example
I want to use this solution for counting currently positions in an "container list".
I got a similar function like the example below for counting my lists, that's working great but the insert into the table does not work properly.
countinglists example: Nested ordered lists
Maybe its possible to achieve that counting syntax in a table without the <ol>? or is there any <ol> equivalent?
You need to do some reading on basic HTML: http://www.w3schools.com/html/html_tables.asp
Here is how it should look...
<table>
<thead>
<tr>
<th>head</th>
<th>head</th>
<th>head</th>
<th>head</th>
</tr>
</thead>
<tbody id="list">
<tr>
<td>row</td><td>row</td><td>row</td><td>row</td>
</tr>
<tr>
<td>row</td><td>row</td><td>row</td><td>row</td>
</tr>
<tr>
<td>row</td><td>row</td><td>row</td><td>row</td>
</tr>
</tbody>
In theory, you should be able to use CSS counters.
table {
counter-reset: myTableCounter;
}
thead th:first-child:before {
display: table-cell;
content: "";
}
tbody td:first-child:before {
display: table-cell;
counter-increment: myTableCounter;
content: counter(myTableCounter);
}
However, when I attempted to do that I found there were issues with display: table-cell generated content.
You may have to look at adding additional elements to the table to generate the content inside the first cell of each row.
My question is: what are you trying to achieve? Is this an exercise just to see how much can you stretch the HTML?
For your jsfiddle, the action associated to the click removes some of the HTML tags (at least on my browser) resulting in a <li>rowrowrow</li>, so you end up having a rather odd formatted-table. My renderer takes all <li> tags added by clicking as the content of a row; if you have only <li> tags, the dom parser will likely wrap them into a <ul> (it does on mine).
IMHO you don't need to use the ol to be able to count stuff. You can do it in jquery afaik. If you insist to use lists, then you probably need to style them and use e.g. divs inside (styled too). Emulating a table via a list and divs is madness imho :)
Update - for the hierarchical table
My idea would be to have something similar to this jsfiddle. I basically styled in the .sub and the .main classes. However, things get a bit more complex is you need to add some extra columns. In this case, you'd need something like a treetable.

Slide Down tabe row smoothly and Slowly

I want to Slide Down tabe row smoothly and Slowly.
The problem now is, it is instantly appearing and hiding, how can i make it smooth.
**Please check this fiddle:**
http://jsfiddle.net/5WT9g/2/
HTML:
Show Content
<br><br><br>
<table width="400" border="1">
<tr id="mainContent" style="display:none;">
<td> THIS IS MAIN CONTENT </td>
</tr>
</table>
JS:
$('#showContent').click(function ()
{
$('#mainContent').slideToggle('slow');
});
I think you mean to use slideToggle() and not toggleslide().
However, the animation still won't work smoothly for table cells. It will work slightly more smoothly if you set a height for the tr. For a completely smooth animation, I recommend using divs instead.
Here is a modified version of your code that has a sort of smooth animation with tables:
http://jsfiddle.net/TS77v/1/
As you can see, you will have to do the animation on the td, not the tr. I also had to set the height of the td for this to work, otherwise it will just appear and disappear.
Why doesn't the animation work properly on tables?
From "Learning jQuery" by Chaffer and Swedberg
Table rows present particular obstacles to animation, since browsers
use different values (table-row and block) for their visible display
property. The .hide() and .show() methods, without animation, are
always safe to use with table rows. As of jQuery version 1.1.3,
.fadeIn() and .fadeOut() can be used as well.
For your reference: https://stackoverflow.com/a/920480/3016565
It would be much easier with divs but if you prefer/need tables then tables it is. I'd do it by putting a div inside the table cell ja use the slideToggle to it. Yes, it still adds the div there but atleast you got the table structure. To make it work you need to do just a minor change to your HTML code, JS stays the same:
HTML
Show Content
<br><br><br>
<table width="400" border="1">
<tr>
<td><div style="display: none;" id="mainContent">THIS IS MAIN CONTENT</div></td>
</tr>
</table>
And a fiddle: http://jsfiddle.net/32HR9/1/
AFTER GETTING THE INFORMATION THAT YOU CAN'T CHANGE THE HTML
I assume you can edit the javascript? You haven't said anything about that. This trick isn't neat but there's no need to change the HTML and it gets the job done:
So, with jQuery
Make the tr visible.
Wrap the content of the tr in a div.
Hide the div.
Make the slideToggle work with the created div.
with code
$('#mainContent').css('display', 'table-row');
$('#mainContent > td').wrapInner("<div class='hideshow'></div>");
$('.hideshow').css('display', 'none');
$('#showContent').click(function (){
$('.hideshow').slideToggle('slow');
});
and a fiddle: http://jsfiddle.net/5E5VS/7/
Try this.
Show Content
<table id="mainContent" width="400" border="1">
<tr>
<td> <p style="display: none"> THIS IS MAIN CONTENT</p></td>
</tr>
</table>
$("#showContent").click(function () {
$('#mainContent').find("p").slideToggle();
});

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