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PreSearch lookup entity grid in PowerAppsPortal JQuery

I have DataVerse form in PowerAppsPortals.
One of the field is LookUp for another Dataverse table.
What I need is to prefilter entity-grid in Lookup based on variable which I get from one of the form fields.
var Pesel is the variable that I need to filter with.
The method tr.remove() works (tr.hide() also works) but because my entity grid is paginated when it found value for example on second page of grid it doesn't automatically move found record to the first page - user has to manually move to exact page on which jquery found row.
My lookup grid contatins 6000 records - after change of parameter PageSize to 6000 it takes forever to load grid and prefilter it.
I beg you to help me, I think I've searched whole internet and can't find solution.
var Pesel - it's the value that I get from form field and want to search for it in grid view.
PeselGrid - it's the value that I've picked up from column in grid view.
What I need is to simply prefilter this grid view with jQuery after user opens it - he fills the correct fields in main form and jQuery prefilters grid view to show for him only found rows (something like using the search field in grid view)
$(document).ready(function(){
$(".entity-grid").on("loaded", function () {
var Pesel = $("#cr94f_pesel").val();
var tBody = $(this).find("tbody");
$(".entity-grid").find("table tbody > tr").each(function () {
var tr = $(this);
var PeselGrid = $(tr).find('td[data-attribute="cr94f_pesel"]').attr("data-value");
if (PeselGrid != Pesel) {
tr.remove();
}
});
I think that I've searched whole internet for the solution

How to make all the fields visible in the new Task form of Tasks List in SharePoint?

I have created a Tasks List in SharePoint. When I try to add a new Task, it opens a form with few visible fields like TaskName, StartDate, DueDate, Description, AssignedTo. When I click on 'ShowMore', then it is showing all the remaining fields like %complete, TaskStatus, Priority, Comments, ExpectedDueDate.
Issue: I want all the fields to be visible from the start without clicking on 'ShowMore', because some people might get confused with this option and may skip filling these fields. Can someone please kindly suggest how to achieve this. Any help is greatly appreciated. Thank you!

Unfortunately there is no such setting that allows to configure fields visibility in tasks form AFIK.
But task form could be customized in order to display all the fields as demonstrated below.
Since it is a SharePoint 2013 environment, the following approach is suggested:
Create rendering template to display all the fields in New & Edit forms
Update Task web part in New & Edit forms pages
Template file
The following example demonstrates how to display all the fields of Task form:
(function () {
function preTaskFormRenderer(renderCtx) {
rlfiShowMore();
}
function registerRenderer()
{
var ctxForm = {};
ctxForm.Templates = {};
ctxForm.OnPreRender = preTaskFormRenderer;
SPClientTemplates.TemplateManager.RegisterTemplateOverrides(ctxForm);
}
ExecuteOrDelayUntilScriptLoaded(registerRenderer, 'clienttemplates.js');
})();
How to apply changes
Upload the specified script (lets name it TaskForm.js) into SharePoint Site Assets library
Open New Form page in edit mode and go to Tasks web part properties
Specify JS Link property located under Miscellaneous group: ~sitecollection/SiteAssets/TaskForm.js (see pic. 1)
Save changes and repeat steps 2-4 for Edit form

I prefer other methods to the JavaScript workaround to really solve the problem:
1. You can change the list form assigned to the local Task content type, for example via PowerShell:
$web = Get-SPWeb http://YourSharePointSite
$list = $web.Lists["Tasks"]
$ct = $list.ContentTypes[0]
$ct.DisplayFormTemplateName = "ListForm"
$ct.NewFormTemplateName = "ListForm"
$ct.EditFormTemplateName = "ListForm"
$ct.Update()
You can set the list form assigned to the ListFormWebPart via SharePoint Designer
Create your own control template and add the ShowExpanded="true" attribute to the TaskListFieldIterator control
Pass the Expanded=1 in the request query string like NewForm.aspx?Expanded=1
Change the default column order of the local Task content type
All of these have the effect of displaying all the fields without the "Show More" button. You can read more about these methods here:
http://pholpar.wordpress.com/2014/11/01/no-more-show-more-in-tasks-lists/

Can CSS or JS effect the submission of a form?

I have a large form spread over 3 tabs. The tabs are controlled by JS which simply changes the css property display: block to display:none depending what tab you click on.
This form also submits data to 3 different tables via php. When i submit my form at the end of the the 3rd tab some of my data is missing in a table that accepts multiple rows (the other two tables only accept a single row) In this section of the form I let the user add as many "Rooms" as they need. The rooms are just a few selection boxes, and the extra selection boxes are also added with JS. When i submit my form only the first "room" is added to the table.
I am positive every thing is working as if I remove the tabs it works perfectly or even if i add all three sections of the form to one tab it works. Below is the PHP that inputs the rooms and loops depending how many there are. Sorry this is a very large form so i dont want to just stick it all in, but it is all very simple and all working. Please let me know if I should add any other part of my code if that helps.
$level = $_POST['level'];
$room_type = $_POST['room_type'];
$width = $_POST['width'];
$length = $_POST['length'];
$num_rooms = count($level);
for($x=0;$x<$num_rooms;$x++)
{
$room_insert = mysqli_query($dbcon, "INSERT INTO listing_rooms (Listing_ID, Level, Type, Length, Width) VALUES ('$listing_id', '$level[$x]', '$room_type[$x]', '$length[$x]', '$width[$x]')") or die(mysql_error());
}
To trigger this I have an if(isset()) just above this. Thanks for any help.
This is the JS that shows and hides the tabs...
function showHideTab(tab_id) {
if (tab_id == 'details_tab'){
document.getElementById('listing_details').style.display='block';
document.getElementById('listing_info').style.display='none';
document.getElementById('photo_upload').style.display='none';
}else if (tab_id == 'info_tab') {
document.getElementById('listing_info').style.display='block';
document.getElementById('listing_details').style.display='none';
document.getElementById('photo_upload').style.display='none';
}
else if (tab_id == 'upload_tab') {
document.getElementById('photo_upload').style.display='block';
document.getElementById('listing_info').style.display='none';
document.getElementById('listing_details').style.display='none';
}
}

As I thought this was a very simple error. As i said I have 3 divs being shown or hidden by JS. My issue was I had my opening FORM tag inside my first div!
I still dont know why everything other then the array of "rooms" worked fine regardless of where the opening form tag was, and even the array held the first value?

Refresh table information instead of appending

I would explain the functionality of the jquery plugin myself but the website definitely does it better than what I can, it seems quite a simple plugin for the most part
http://tablesorter.com/docs/
I'm using this plug to filter my tables after they are generated, works fine. The issue is that the table is live updating and after table is filtered, if a new update is received and then you filter the table again, the data duplicates.
I have been looking in to it a lot, it seems the plugin builds up a cache of the information which allows the data to be filtered.
What I'd like to do is to delete the cache and rebuild it everytime there is an update, preventing duplicate information from being appended to the table array.
client javascript:
function appendTables(appendData, index) {
var tabPage = "#tabpage_"+index+" > #myJobs_"+index+" > .userJobs";
userJobsElement = $(tabPage);
userJobsElement.empty();
userJobsElement.append(appendData);
applySortTable();
}
this part generates multiple tables using a dynamic id as well as 2 standard tables:
function applySortTable() {
var tables = $('table');
tableCount = tables.length-2;
$("#myJobs_all").tablesorter();
$("#myJobs_noteam").tablesorter();
for (var i = 0; i < tableCount; i++){
$("#myJobs_"+ i).tablesorter();
}
the table is then generated using the plugin and as I said creates a cache, does anyone know how to clear the cache then have it rebuild for when this happens to a user?
update
the updating of the data is now working but currently we have setup a tab based table system to view different team information. when the update is processed, the table is then only updated in the first table and the other tables stop working, anyone know how to handle this?

Re-initializing the tablesorter plugin is not the correct method. After adding new content, simply trigger the update method:
$("table tbody")
.append(appendData)
.trigger('update'); // this event will bubble up
Check out this demo's code example

JS/JQUERY: Moving numbered table rows up and down without losing user input

I have created a table in HTML, consisting of table rows in a tbody tag.
I've used a javascript code snippet from mredkj.com to be able to add rows and delete them, too. The rows are sorted and their rank is in the first TD (cell) in every TR (row).
Now I would like the add the functionality of being able to manually 'resort' the tablerows.
The problems are:
my javascript/jquery knowledge is
very limited
the ranks of tablerows
do not get updated(when you delete a row, the
rowranks get updated by the
'reorderRows function, but calling this function from within my jQuery does not seem to
sort out the problem)
the user's input in textarea's gets erased as soon as up or down button is clicked.
For example: user adds a TR, that gets added at the bottom of the current list of tablerows, fills in the textarea and desides that the row (s)he filled should be ranked first, so she clicks the up arrow a couple of times, until it's on top.
The rank of the row is now #1 and the input is still in the textarea's.
My questions are:
Does anyone know how I can make the
rows update their ranking when the
user moves the row?
How do I maintain the user's input?
Any help is very much appreciated and if you have any other suggestions, please share them.
Code here: http://jsbin.com/eyefu5/edit - for some reason, the moving up and down doesn't work in js bin, it does however when I run it in my browser.

I updated your code to do what I think you were trying to do: http://jsbin.com/eyefu5/9/
My primary changes were to the following swap logic:
function swap(a, b){
b.before(a);
reorderRows(document.getElementById(TABLE_NAME), 0);
}
function getParent(cell){ return $(cell).parent('tr'); }
$('#diagnosetabel').on('click', '.upArrow', function(){
var parent = getParent(this);
var prev = parent.prev('tr');
if(prev.length == 1){ swap(parent, prev); }
});
$('#diagnosetabel').on('click', '.downArrow', function(){
var parent = getParent(this);
var next = parent.next('tr');
if(next.length == 1){ swap(next, parent); }
});
The biggest difference is that I switched the swap code to using jQuery's before method, which should take care of just about everything for you. I also added a call to the reorderRows method which you were already using. At the moment it starts at the beginning and reorders all the numbers after the swap, but you could narrow this down as needed because you know the only two rows which were modified.
Hope that helps!