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JQuery DataTables - Hide Table Until Searching

I'm using DataTables with JQuery to show some data on my site. I use the search feature to filter the data, and give me the intended results. What I'd like to do is to hide the table until a user begins typing a search in the box, and only then display the proper results. Here's my DataTables code right now:
function renderTable() {
jQuery('.dataTable').show();
jQuery('.dataTables_info').show();
jQuery('.dataTables_paginate').show();
}
function hideTable() {
jQuery('.dataTable').hide();
jQuery('.dataTables_info').hide();
jQuery('.dataTables_paginate').hide();
}
jQuery('.dataTables_filter input').keypress(function() {
if (jQuery('.dataTables_filter input').val() != '') {
renderTable();
} else {
hideTable();
}
});
jQuery(document).ready(function() {
jQuery('#resultsTable').DataTable({
"paging": true,
"pageLength": 25,
"lengthChange": false,
"pagingStyle": "simple_numbers",
"language": {
"search": "",
"searchPlaceholder": "Search for an entry"
},
"order": [1, 'asc']
});
hideTable();
} );
It successfully hides everything from the DataTable but the searchbox on document.ready, but I can't get it to call my renderTables() function when a user clicks in the box and types. I'm not sure if I'm targeting it correctly with: '.dataTables_filter input'. The search input that DataTables renders doesn't have any unique ID I can target, so I have to refer to it from the filter element which contains it.

Try some thing like this:
Make a function to render the datatable with the required filter parameter and call it on search functionality. So that it cannot render table on page load. When your search functionality is initiated it will render the table with the filter parameter.
Ex:
$(document).ready(function(){
$('#search_box').keyup(function(){
var searchStr = $(this).val();
if((searchStr).length)
{
filterData(); // call the filter function with required parameters
}
else
{
// empty the table body
}
});
});
function filterData()
{
// your code
}

You can use the rendered filter input box, then use the drawback function. This is how I did it.
drawCallback: function(settings){
if($('#yourtableid_filter input').val().length > 0) --this is generated by datatable
{
$('#yourtableid tr').show();
} else {
$('#yourtableid tr').hide();
}
}
once the filter input is empty, it will hide everything again.

I have used jquery for pagination in my code and javascript function to for selectall checkbox functionality

I am using javascript function for selectall checkbox functionality but this function is not working when i click next page. I am using jquery for pagination. I want if on first page i have 10 records and 10 on next page and so on, then i select selectall checkbox on first page so it should select all the records on first page and all other pages records as well.
I am using apex in my code
Any help will be appreciated.
$ = jQuery.noConflict();
$(document).ready(function() {
$('.table').DataTable( {
"searching": false,
"ordering": true,
"info": true
} );
} );
function checkAll(cb)
{
var inputElem = document.getElementsByTagName("input");
for(var i=0; i<inputElem.length; i++)
{
if(inputElem[i].id.indexOf("checkedone")!=-1)
inputElem[i].checked = cb.checked;
}
}

How to stay on the active page in jquery DataTable

I have several data listed on the jquery dataTable and its done pagination by the DataTable plugins default. I want to get the current page of the dataTable while processing the data and set that page into active after the action is processed and reload the data.

See this fiddle. You can see how to get the current pages. In the JSFiddle you can try refresh browser. Example let say the current page now is 3. When you refresh the browser, you still in page 3.
To solve your problem want to go back to the last page when editing or deleting row, u must use this option to make jquery datatable remember where the last page. Jquery Datatable will save the state of a table (its paging position, ordering state etc). The state saving method uses the HTML5 localStorage and sessionStorage APIs for efficient storage of the data. See this link to read more detail about it. State saving
"bStateSave": true
JSFiddle Link
Fiddle Demo
Javascript code
$(document).ready(function() {
var table = $('#example').DataTable({
"sPaginationType": "full_numbers",
"bStateSave": true
});
$("#example").on('page.dt', function () {
var info = table.page.info();
$('#pageInfo').html('Currently showing page ' + (info.page + 1) + ' of ' + info.pages + ' pages.');
});
} );

Use only stateSave: true
like this:
$(document).ready(function() {
$('#tableId').DataTable( {
stateSave: true
} );
})

Copied from Datatable
var table = $('#example').DataTable( {
ajax: "data.json"
} );
setInterval( function () {
table.ajax.reload( null, false ); // user paging is not reset on reload
}, 30000 );
Pass null, false on reload function to stay on that page while reloading the table. See ajax.reload() documentation for more information.

See the dataTables documentation which provides a call back function from which you can obtain the current page:
$('#example').dataTable( {
"drawCallback": function( settings ) {
var api = new $.fn.dataTable( settings );
// Output the data for the visible rows to the browser's console
// You might do something more useful with it!
console.log( api.rows( {page:'current'} ).data() );
}
});

Add this where you are initializing datatable
"drawCallback": function( settings ) {
alert ( 'You are on ssame page' );
}
It works for me :)

Persistance of expanded detail Jquery Datatables

I have an asp.net web application that has the option to provide pseudo-realtime data about an automation machine. I am using the JQuery Datatables with an ajax datasource. I have an interval that reloads the data source every set amount of time (which updates my datatable asynchronously from the db) and then redraws the table.
I am also using the responsive plug in for the table, so the web app can be accessed well from phone sized devices. I have set this up so that it drops all of the columns but the first(primary) column and adds the other columns a child (detail) record. This is where my app breaks and my phone users loose usability. This is because whenever the table redraws detail records snaps close. Therefore if a phone user is looking at the table and has expanded the detail of a record the record will snap shut as soon as the table is redrawn.
My solution would be to capture the opened detail and then at the time of redraw re-open the detail. I believe I have captured the detail successfully but everything I have found to try to programmatically expand it has not worked.
$(document).ready(function () {
var row;
var tr;
var table = $('#myDataTable').DataTable({
autoWidth: false,
processing: false,
stateSave: true,
sAjaxSource: '#Url.Action("GetDropData", "Drops")',
"columns":
[
{ "width": "10%" },
{ "width": "50%" },
{ "width": "40%" }
]
});
var timer = setInterval(function () {
table.ajax.reload(null, false);
}, 1000);
//flag is used to determine if last click expanded a detail
var flag = false;
//If table is clicked find closest 'tr'
table.on('click', 'tr', function () {
tr = $(this).closest('tr');
row = table.row(tr);
//was click a detail expansion
if (row.child.isShown()) {
flag = true;
}
})
// event fires after ajax call completes (reload and redraw)
$('#myDataTable').on('xhr.dt', function () {
if (flag) {
$(tr).addClass('row_selected');
}
});
});
If you can tell why the detail isn't expanded or a better way solution please let me know. I do have a temporary solution in place that just pauses the interval when the detail button is clicked but this makes my phone users table not update.

If you're using Datatables 1.9 and earlier use fnDrawCallback().
If you're using Datatables 1.10+ use drawCallback().
Both of these callbacks go in your datatables initializer and can take your row detail opening code.
$(document).ready( function() {
$('#example').dataTable( {
"fnDrawCallback": function( oSettings ) {
//open detail row here
}
} );
} );

JQuery DataTables: Show/hide row details with multiple tables

I'm aware there's a similar question on here JQuery DataTables: How to show/hide row details with multiple tables? but that doesn't apply to my current problem completely.
I have the code:
var oTable = $('.dataTable').dataTable( {
"aoColumnDefs": [
{ "bSortable": false, "aTargets": [ 0,3,4 ] },
{ "bVisible": false, "aTargets": [ 4 ] }
],
"aoColumns": [
null,
null,
null,
null,
{ "sType": "html" }
],
"aaSorting": [[1, 'asc']],
"bFilter": false,
"bPaginate": false,
"fnInitComplete": function(oSettings) {
/* Add event listener for opening and closing details
* Note that the indicator for showing which row is open is not controlled by DataTables,
* rather it is done here
*/
$('.dataTable tbody td img').live('click', function () {
var nTr = this.parentNode.parentNode;
if (oTable.fnIsOpen(nTr)) {
// This row is already open - close it
this.src = "css/images/details_open.png";
oTable.fnClose(nTr);
} else {
// Open this row
this.src = "css/images/details_close.png";
oTable.fnOpen(nTr, fnFormatDetails(oTable, nTr), 'details');
}
} );
}
});
That works if there's only one if I add the dataTable class to a second table, then they work as datatables but the show/hide buttons fail in both tables. Both tables have the same count of fields and content, just for the sake of making it work, but still no success.
On the similar post, the person suggests adding:
tbl = $(this).parent().parent().dataTable();
to the click function but I have tried that and it didn't work.
What am I missing??

In short: get rid of the fnInitComplete, and move the "live" call to below the dataTable call.
As an example, if you have three tables, after each table is completed, your current code will execute the fnInitComplete method - so fnInitComplete gets called 3 times. Your fnInitComplete uses a selector to "live" the click event to an img, and the selector will "live" to all tables. This results in multiple bindings. See this jsfiddle, http://jsfiddle.net/KeVwJ/, which duplicates your method. (Note that I'm not using images so only capturing click on the td cell, not an image).
var oTable = $('.dataTable').dataTable( {
"bFilter": false,
"bPaginate": false,
"fnInitComplete": function(oSettings) {
$('.dataTable tbody td').live('click', function () {
var nTr = this.parentNode;
alert(nTr);
} );
}
});
If you click on any row in the table, you will get 3 alert boxes, because 3 tables are created and they each "live" click for all tables at fnInitComplete.
To fix, remove the fnInitComplete, and put the code for "live" after the call to dataTable. That should solve it. See this jsfiddle: http://jsfiddle.net/rgMNu/ Click on any row in the table and it will identify the correct table class. Again since I am capturing the click on td, I only have to do this.parentNode.parentNode.parentNode. I think you'll have to do another level.
$('.dataTable tbody td').live('click', function ()
{
var t = this.parentNode.parentNode.parentNode;
alert(jQuery(t).attr('class'));
} );