I used a grid display on the body with some control elements in column 1, and a fullpage view in the second column. The first column may contain a lot of elements and requires vertical scroll (overflow-x:auto).
I have an input element within the other elements in the grid column to which I assign flatpicker.
https://codepen.io/dbauszus-glx/pen/wvpamZr
flatpickr("#date-input", {
static: true,
//appendTo: "scroll-parent"
});
My issue is that without the static property the flatpickr control displays but doesn't scroll.
With the static property the flatpickr control scrolls together with the input element but the display overflows the parent container with scroll.
I'd like the control to show as seen without static but be linked to the input element when scrolled.
I tried to work with the appendTo property which doesn't seem to have any effect.
Trawling the flatpickr issues I found an issue related to the positioning of the flatpickr instance inside a scrollparent.
I put together a small util method which takes the flatpickr instance and a scrollParent element and attached a scroll event listener to the parent when the flatpickr instance opens.
The scroll event method will reposition the absolute flatpickr container.
The onClose event will remove the scroll eventlistener from the scrollParent element.
function appendFlatpickrToScroll(fp, scrollParent) {
fp.config.onOpen.push(() => {
scrollParent.addEventListener("scroll", scrollEvent, { passive: true });
});
fp.config.onClose.push(() => {
scrollParent.removeEventListener("scroll", scrollEvent);
});
function scrollEvent() {
fp._positionCalendar();
}
}
Related
I'm using a Kendo ScrollView to display person images on a form.
Separate from the ScrollView, users can change the display order of the images. After they save their changes to the display order, the ScrollView is reloaded, scrolls to the first item, and should display the images in their new order.
However, I've noticed that when the ScrollView is currently on the first page, that page does not get refreshed/redrawn.
My ScrollView looks something like this:
#(Html.Kendo().ScrollView()
.Name("personImage")
.TemplateId("personImageTemplate")
.DataSource(d => d
.Custom()
.Type("aspnetmvc-ajax")
.Transport(t => t
.Read(r => r.Action("PersonImages_Read", "Person", new { personID = Model.ID } ))
)
.Schema(s => s.Data("Data").Total("Total"))
.ServerPaging(false)
.PageSize(1)
)
)
The template looks like this:
<script type="text/x-kendo-tmpl" id="personImageTemplate">
<img class="personImage"
src="#(Url.Action("ImageRender", "Person"))?imageID=#= data.ID #"
title="#= data.Filename #" />
</script>
And here is my refresh function:
function refreshPersonImageScrollView() {
var scrollView = $("#personImage").data("kendoScrollView");
if (scrollView) {
scrollView.dataSource.read();
// https://docs.telerik.com/kendo-ui/api/javascript/ui/scrollview/methods/refresh
// redraws, doesn't re-read from datasource
scrollView.refresh();
// scroll to first image
scrollView.scrollTo(0);
}
}
When I watch the requests being made when I call this function, I see this:
A. When a page other than the first page is selected:
PersonImages_Read (the ScrollView's dataSource read)
The ScrollView scrolls to the first image
3x ImageRender, as it renders the first 3 items in the ScrollView
B. When the first page is selected:
PersonImages_Read (the ScrollView's dataSource read)
Nothing else
I tried switching the order of scrollView.refresh() and scrollView.scrollTo(0), but the result does not change.
Is there any way to get Kendo to refresh/redraw the current page? I thought refresh would do it, based on the documentation, but it does not.
Edit
I've been able to replicate this issue in REPL. To see the behavior in action:
Note the "Rendered" time under the first image.
Scroll to the second image in the ScrollView.
Wait several seconds, then click the "Refresh" button.
The ScrollView should scroll back to the first image.
Observe that the "Rendered" time under the first image matches the "Last clicked" time reported below the "Refresh" button, and is no longer what it was in step #1. (This is the correct behavior.)
Remain on the first image for several seconds. Note the "Rendered" time listed before continuing.
Click the "Refresh" button.
Note that the "Last clicked" time has updated, and in the "Log" section, there is an entry that reads "dataSource read complete" at approx. the same time. However, the "Rendered" time under the image has not changed, and there is no log entry that says "image for product #X loaded".
I am using Kendo version 2021.3.1109 in my project. The Kendo version in the REPL above is 2022.3.913 and it still occurs in that version.
I have found a way to resolve the issue, but this may be worth opening a possible bug ticket with Telerik, because you would think that scrollView.refresh call would work.
What I changed in your refreshPersonImageScrollview function was to call setDataSource on the scrollview rather than calling the refresh method. Like so:
function refreshPersonImageScrollView() {
$("#refresh-last-clicked").text("Last clicked: " + getCurrentTime());
addToLog("refresh button clicked");
var scrollView = $("#personImage").data("kendoScrollView");
if (scrollView) {
scrollView.dataSource.read();
scrollView.setDataSource(scrollView.dataSource);
// scroll to first image
scrollView.scrollTo(0);
}
}
This appears to force the scrollView to re-evaluate its life choices and properly refresh :) However, it does seem to trigger additional dataSource reads, so it's not ideal.
One other thing I tried that didn't resolve the problem, but may be a good thing to change to anyway, would be to utilize the promise returned by the dataSource.read call. Meaning, do your scrollView setDataSource and scrollTo calls after the dataSource read promise is settled, like so:
scrollView.dataSource.read().then(function() {
scrollView.setDataSource(scrollView.dataSource);
// scroll to first image
scrollView.scrollTo(0);
});
REPL link here
I have a grid that has child grid for each item, when i add a new item to the main grid, there is a stub for the child (with the toolbar etc and an empty grid for the child), I would like to hide the child grid when adding new one, i know i need the edit event, i just dont know how to get reference to the detailgrid for the item that the row was just created for input.
edit event has e.sender, e.container, e.model, first 2 reference the main grid of course as the event is raised by the main grid
The required behavior is not supported out of the box, however you can for example attach click event handler to the expanding arrows in the Grid. In the event handler you can prevent the expanding if current model is new. Please check the example below:
//Change Employees with your grid name
//the grid should have model ID defined
$("#Employees table").on("click", ".k-hierarchy-cell a", function (e) {
dataItem = $("#Employees").data("kendoGrid").dataItem($(e.srcElement).closest("tr"));
//check if is new record
if (dataItem.isNew()) {
e.preventDefault();
e.stopImmediatePropagation();
}
})
UPDATE (as requested): The above code should be executed in script tag (wrapped in document "ready" event handler) which is placed just after the Grid initialization code.
I am using the Alloy Diagram Builder to create and display network topology.
I would like to remove default click and drag events attached to each nodes, so viewers would not have the ability "build" diagrams but only view diagrams that I have generated.
http://alloyui.com/examples/diagram-builder/real-world/
I have tried these but it does not work.
// detach click event to all nodes with class aui-diagram-node.
Y.all('.aui-diagram-node').detach("click");
// unbind
$(".aui-diagram-node").each(function(){
$(this).unbind();
});
I believe the event is attached to the container .aui-diagram-builder-drop-container via delegate() and the event would be mousedown.
Merely by accident I found a hack that might work for this. I was adding tooltips to my page on which I had a diagram builder, well apparently the tooltips layer a div over the page and simply set the opacity on it to be clear and the object still resides. After a tooltip had come up i was unable to interact with the piece of the diagram builder the tooltip had popped up over.
So based of this concept, why not try overlaying a div over the entire canvas of the diagram and give it a high z-index so that it sits on top. It should effectively not allow interaction with the canvas.
Yes it's a kludge but it just may work.
To make a DiagramBuilder read-only, you can detach() events from all of its children recursively:
/*
* Readonly the diagram
*/
function ReadonlyDiagram(diagram) {
function detachRecursively(node) {
node.get('children').each(detachRecursively);
// You may also want to set the cursor to the default since it will
// change based on which elements the mouse is over.
// node.setStyle('cursor', 'auto');
// You may want to detach specific events such as 'click' or
// 'mousedown' if you do not want to disable all events.
node.detach();
};
diagram.on('render', function (event) {
detachRecursively(diagram.get('boundingBox'));
});
}
Now, you must be post diagramBuilder object to ReadonlyDiagram function like below codes:
YUI().use('aui-diagram-builder', function (y) {
var diagram = new y.DiagramBuilder(
{
availableFields: data,
boundingBox: '#' + containerId,
fields: nodes,
srcNode: '#' + builderId
}).render();
diagram.connectAll(connections);
if (callBackDiagram !== undefined) callBackDiagram(diagram);
if(isReadonly === true) ReadonlyDiagram(diagram);
});
});
Reference
Currently I have a page which on load scatters draggable divs randomly over a page using math.random
Using media queries however the page uses packery to display the same images for browser widths under 769px in a grided fashion.
I had the idea that it could be interesting to create a 'sort/organize' button which would rearrange these divs using packery and remove the draggable class already applied, however i have no idea if this is possible or how to go about it. If there is any method of animating this process that would also be a bonus!
If anyone could at the very least point me in the right direction i would be extremely thankful!!
Hopefully this gives you a bit of a starting point.
I would read up on JQuery as it has some useful helpers for DOM manipulation.
I don't think this is the most efficient way to do it, and I think you will need to rethink your test harness for doing this in the future, but hopefully this gets you started.
Firstly I've added a button to trigger the sort
<div class="rotate" id="contact">Contact</div>
<div id="logo">Andrew Ireland</div>
<button id="sort">sort</button>
Then updated the script to override the css setting to switch between draggable view and item view.
// general wait for jquery syntax
$(function(){
// trigger the layour to sort get the packery container
var container = document.querySelector('#container.packery');
var pckry = new Packery( container );
//button function
$("#sort").click(function(){
//Hide all the dragged divs
//ui-helper-hidden is a jquery ui hider class
if($('.box').css('display') == 'block') {
$('.box').css({'display':'none'});
//Show all the item class's
$('.item').css({'display':'block'});
//show the container
$('#container').css({'display':'block'});
// trigger the layour to sort
pckry.layout();
} else {
//hide all the item class's
$('.item').css({'display':'none'});
//hide the container
$('#container').css({'display':'none'});
//show the draggable box's
$('.box').css({'display':'block'});
}
});
$( ".pstn" ).draggable({ scroll: false });
$(".pstn").each(function(i,el){
var tLeft = Math.floor(Math.random()*1000),
tTop = Math.floor(Math.random()*1000);
$(el).css({position:'absolute', left: tLeft, top: tTop});
});
});
As I said this is more to get started. The packery documentation details how to trigger its layout functions so another approach would be to only have the draggable elements, and put these inside a packery container. Then when you want to sort them you can just trigger that the packery.layout() function.
I hope this is helpful, I am only just getting started on stack overflow so any feedback would be appreciated.
I am creating a grid in which a cell with the value "Y" should be green and a cell with value "N" should be red. To do this I have assigned a cssClass "YN" to the cells and I have created an attribute containing the value of the cell. It looks something like this:
CSS:
.slick-cell.YN[val="N"]{...
grid cell:
<div class="slick-cell l10 r10 YN" val="N">N</div>
This works great but as soon as I scroll or sort, the attribute is destroyed and does not reappear when the element is recreated.
I need a way to get the cell value and create an attribute each time the element is created. Perhaps there is an easier way than creating an attribute? Can the CSS directly reference the div html?? Any help would be most appreciated.
PS: slickgrid is awesome!
Whenever the grid is scrolled,sorted or changed page the grid DOM is recreated. So all the attributes you applied are lost...you have to apply them again..
so you need to recall your code in onscroll and onsort functions..
grid.onScroll.subscribe(function(e) {
grid.invalidate();
grid.render();
yourCodeToStyleAgain();
});
grid.onSort.subscribe(function(e) {
grid.invalidate();
grid.render();
yourCodeToStyleAgain();
});