ive been trying for ages now to pass the value with little success, the image below is what I am aiming for:
and this is the table structure/relationships
cheers for any help you can give me guys, this is beginning to be a real pain in the arse
based on this I managed to solve my issue by doing the following
LightSwitch: Passing data from one screen to another -> for Desktop Client
For HTML Client
You MUST have a parameter on the screen from which you are passing the data, this is done by creating a data item, i.e. int in the below example, and in the post render code for this use the following code:
myapp.ViewDeliveryNote.DeliveryIDPass_postRender = function (element, contentItem) {
contentItem.screen.DeliveryIDPass = //created parameter
contentItem.screen.DeliveryNote.DeliveryID; //the unique ID from the screen
};
On the screen you want to pass to, add a new data item as that datatype OR if you are using it as a search parameter, use this.
Find the parameter/data item you added on the left hand panel and click on the item, now in the properties window tick (is parameter)
If there was a previous link between the pages via a button, remove the on tap and re-add it... you will now see an additional box where the application is asking for the value to pass, select the one you want and that shoud work :)
hope this helps
Related
I am going to do live data streaming on ag-grid datatable, so I used DeltaRowData for gridOptions and added getRowNodeId method as well which return unique value 'id'.
After all, I got a live update result on my grid table within some period I set, but some rows are duplicated so I can notice total count is a bit increased each time it loads updated data. The question title is warning message from browser console, I got bunch of these messages with different id number. Actually it is supposed not to do this from below docs. This is supposed to detect dups and smartly added new ones if not exist. Ofc, there are several ways to get refreshed data live, but I chose this one, since it says it helps to persist grid info like selected rows, current position of scroll on the grid etc. I am using vanilla js, not going to use any frameworks.
How do I make live data updated periodically without changing any current grid stuff? There is no error on the code, so do not try to speak about any bug. Maybe I am wrong with current implementation, Anyway, I want to know the idea or hear any implementation experience on this.
let gridOptions = {
....
deltaRowDataMode: true,
getRowNodeId = (data) => {
return data.id; // return the property you want set as the id.
}
}
fetch(loadUrl).then((res) => {
return res.json()
}).then((data) => {
gridOptions.api.setRowData(data);
})
...
If you get:
duplicated node warning
it means your getRowNodeId() has 1 value for 2 different rows.
here is part from source:
if (this.allNodesMap[node.id]) {
console.warn("ag-grid: duplicate node id '" + node.id + "' detected from getRowNodeId callback, this could cause issues in your grid.");
}
so try to check your data again.
if u 100% sure there is an error not related with your data - cut oof the private data, create a plinkr/stackblitz examples to reproduce your issue and then it would be simpler to check and help you.
I have an Angular 4 application in which I need to add the following functionality:
There is a component with a list of objects. When the user double clicks on one of them, the app retrieves from a DB a list of objects and it should scroll to where the object appears.
I'd like to know how I could move to the desired position in the data once that it has been displayed in the browser. Right now, I have the following code:
let objElement = document.querySelector("#object_"+searchItem._objectID);
if (objElement){
objElement.scrollIntoView();
console.log("****** SCROLLING TO OBJECT");
}
The problem is that, the first time that I load the data from the DB, it seems that 'document.querySelector' returns null, as if the HTML wasn't 100% constructed yet, so it doesn't scroll to the position. If I try to locate the element again, it scrolls perfectly (as it doesn't reload the data from the DB).
Is there a "more Angular" way of doing this? I'm trying to find an example like this in the Angular Router documentation but I can't find anything...
EDIT:
To make things clearer, this is the pseudo-code that I run when the user selects an object:
if(selectedObject IS IN currentLoadedObjects) {
scrollTo(selectedObject); // This function runs the code above
}
else { // The object is in a different list, so retrieve it from the DB
ObjectService.getObjectListFromDB(selectedObject)
.subscribe((returnedList) => {
displayObjectList(returnedList); // Basically, this function parses the returned data, which is displayed in the template using an *ngFor loop
scrollTo(selectedObject);
});
}
As you can see, I try to scroll to the object inside the 'subscribe' method, once that I have the data from the database and after I've parsed it. The object list is pretty big, so it takes 1-2 seconds to be displayed in the browser.
Thanks!
I have an ajax call that builds a small graph in a popup window. The html for the link is re-used in many different links for different devices on the page. What happens, is that when you click a graph for the first device, you get that device. You click a button for the second device, you get that device, however, if you keep clicking away, after the third click or so, you suddenly start getting only the first device, over and over. I think my variables are being cached in some odd way, and I don't understand:
the HTML:
<a class="bluebtn graphbutton ingraph" href="http://wasat/cgi-bin/rrdjson.cgi?res=3600&start=-24h&end=now-1h&uid=28.7B2562040000" data-uid="28.7B2562040000" data-name="Laundry Room Freezer"></a>
<a class="bluebtn graphbutton ingraph" href="http://wasat/cgi-bin/rrdjson.cgi?res=3600&start=-24h&end=now-1h&uid=28.F7A962040000" data-uid="28.F7A962040000" data-name="Garage Temp"></a>
The code in question:
$(document).ready(function() {
$('.graphbutton').click(function(e) {
var formURL = $(this).attr("href");
var uid = $(this).data("uid");
var name = $(this).data("name");
e.preventDefault();
$.ajax({
url: formURL,
dataType: "json",
cache: false,
context: this,
success: function(data){
console.log("calling mkgraph with uid "+uid+" name " +name);
make_graph(data.data, uid, name);
},
error: function(ts) {
console.log(ts.responseText); }
});
}); /* clickfunc */
}); /*docready */
What happens:
Click freezer:
"calling mkgraph with uid 28.7B2562040000 name Laundry Room Freezer"
Click Garage:
"calling mkgraph with uid 28.F7A962040000 name Garage Temp"
Click Garage again:
"calling mkgraph with uid 28.7B2562040000 name Laundry Room Freezer"
Some of these links are being manufactured by the make_graph() function. I'm a bit worried that this is the issue, and somehow the ajax thing needs to be re-initialized after doing this?
By request, the relevant code in make_graph() that I think is causing my issue here. Basically, I'm editing the buttons in the css popup on the fly, and I think this is creating a wierd situation where the ajax binding is bound to the old href, and not being updated, even though the link is correct in the produced html. This is consistent with the effect where the binding only gets mangled on the third attempt.
$(".ingraph").each(function() {
this.href = $(this).attr("href").replace(/uid=.*/g, 'uid=' + uid);
this.setAttribute('data-uid' ,uid);
if (devname.length > 0) {
this.setAttribute('data-name', devname);
}
});
EDIT: adding a long answer:
I have multiple buttons on the main page. Each one specifies a "uid" that gets fed to rrdjson.cgi, which takes the uid and finds the data for that device, and returns it as json. When make_graph() recieves this json data, it populates a css popup, with the graph, and edits 5 buttons so they reference that UID. Those 5 buttons change the timescale of the graph by re-requesting the data from rrdjson.cgi.
What I am worried is happening, is that I click on the frige, it changes the uid's of the buttons inside the popup to reference the frige. Then I close that, click on the garage, it also changes the uid's and correctly shows the garage data. Then I click on one of the buttons inside the popup for the garage, and poof, I get the refrigerator again. I suspect that ajax "remembers" the old values for $(this).attr("href") etc and passes those values to the code, rather than re-reading the contents of the HTML. (perhaps instead of HTML, I meant DOM there, I'm a little vauge on the difference, but I suspect I meant DOM)
Maybe the answer is to somehow un-register the ajax binding to those buttons and re-register it every time make_graph() changes them? How would I do the un-register? .off() ? .unbind() ?
After much gnashing of teeth, and google, I have answered my own question.
https://forum.jquery.com/topic/jquery-data-caching-of-data-attributes
Turns out, jquery caches "data" types, but not attr types. So when I do:
uid = $(this).data("uid");
vs
uid = $(this).attr("data-uid");
I get wildly different results. I guess the moral of the story is that .data is super evil.. :)
If you add a random value to your url like
var formURL = $(this).attr("href")+"?rv="+Math.random();
you'll force the ajax call to reload the URL. You can use the cache property (set it to false) JQuery will load the data again, but any proxy may send a cached version.
(Please check that there are no other attributes set in the url, otherwise set "&rv="+Math.random(); (& instead of ?) use
var formURL = $(this).attr("href");
formURL + (formURL.indexOf("?") > 0 ? "&rv=" : "?rv=" )+ Math.random();
Your problem should not have something to do with make_graph() as uid and name depend on $('.graphbutton')
(if not make_graph(), or some other function, changes the attributes of your buttons)
I am working on a web application using kendo grid(Angular JS). I should call grid.saveChanges() after every delete or insert operation. But in a special scenario such as
Insert a record and call saveChanges
Then delete the same record and call saveChanges
Then call the call grid.cancelChanges()
Normally it goes back to last saveChanges state but in my case it is showing the deleted row. Any help?
I've tried what you say in this demo: http://demos.telerik.com/kendo-ui/grid/editing but it works correctly.
Maybe it only works when you call saveChanges() manually. Data to restore when you're calling cancelChanges() is stored in _pristineData property so try this workaround:
var grid= $("#YourGrid").data("kendoGrid");
grid.saveChanges();
grid.dataSource._pristineData = grid.dataSource._data;
Finally i got the solution.My issue is related to unique id.After saving the data i have changed the id of grid.dataSource.data() item.Because of that, the mapping between grid.dataSource._pristineData and grid.dataSource._data is broken.So my solution is change the id of grid.dataSource._pristineData also.Now its working.Thank you.
I am exploring using DGrid for my web application. I am trying to have a table similar to this.
The code for the example above is here.
The table uses a memory store as the source of its data - the summary field there is what shows up when we click and expand each row.
I want the details(i.e the text shown when we click a row) to be fetched from the server on clicking on the row instead of being statically loaded along with rest of the page.
How do I modify the above code to be able to do that?
(My requirement is that of an HTML table, each row expandable on clicking, where the data on each expansion is fetched from the server, using AJAX for instance. I am just exploring dgrid as an option, as I get sortable columns for free with dgrid. If there is a better option, please let me know)
EDIT: Basically I am looking for ideas for doing that and not expecting anyone to actually give me the code. Being rather unfamiliar with Dojo, I am not sure what would be the right approach
If your ajax call returns html, you could place a dijit/layout/ContentPane in your renderer, and set the url of the contents you want to fetch in the ContentPane's href property. Assuming that your initial data (the equivalent of the example's memory store) would have a property called "yourServiceCallHref" containing the url you want to lazy load, your could try this :
require(["dijit/layout/ContentPane", ...], function(ContentPane){
renderers = {
...,
table: function(obj, options){
var div = put("div.collapsed", Grid.prototype.renderRow.apply(this, arguments)),
cp = new ContentPane({
href : obj.yourServiceCallHref
}),
expando = put(div, "div.expando", cp.domNode);
cp.startup();
return div;
}
});
If your service returns json, you could probably do something with dojo/request in a similar fashion. Just add your dom creation steps in your request callback and put them inside the div called "expando"...
Another option would be to replace the Memory store by a JsonRest store, and have the server output the same json format than the one you see on the Memory store. That means all the data would be fetched in a single call though...