or
2 answers
117 views
hello.
url:
https://demos.telerik.com/kendo-ui/spreadsheet/datasource
I developed a program by applying this page and I am using it well.
However, if there is a lot of transmission data when trying "SAVE DATA CHANGES", an error occurs. It is not an error that occurs in the target url, but an error that cannot reach the target url itself.
All the data from the above url
vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
If I change it to , and save it, I get an error.
method : get
Because it is a get, an error will occur.
On my site, I get an error even though I tried to post.
It's not even that the size of the data to be transferred is large.
Moreover, an error occurs even though it is not a get but a post.
The number of data passed is not large.
This is not an error occurring in the target url, but the transmission itself has failed.
What are the countermeasures? What are the alternatives?
It's not big data, but I get an error at "SAVE DATA CHANGES".
What could be the workaround?
please solve it thank you
onplatform
Top achievements
Rank 1
Iron
Rank 1
Iron
answered
on
24 Jan 2023
1 answer
211 views
Hi,
I have been using kendo ui charts, and in one of pages I have fixed limited space for whole chart area (chart + legend).
Unfortunately, sometimes, dataset for this chart has a lot of elements (30-50) and legend is simply too big (regardless of position, it doesn't fit together with chart in designated space).
Is there a way to customize legend (to limit its area and have only that area with scrollbar (if I put it right or left), or can I load legend elements in dropdown, so it can be extended if needed?
Any suggestions how to handle this?
Thank you
Regards,
Vedad
Nikolay
Telerik team
answered
on
19 Jan 2023
1 answer
220 views
Hello,
I have strong performance problems with the ListBox when working with 10,000+ records. On the one hand, it takes a very long to display the data, on the other hand, the search takes a very long time if you have a lot of hits. It also takes a very long time to delete the searched word. Drag and drop is also very slow. Is there any way to improve the performance? The version I am using is from late 2020!
For example, when searching for "name5" it takes a long time to display the results, when deleting "name5" from the search box the performance is also poor.
Here I use only 2 listboxes, in my project I need 3, which makes the performance even worse.
Just for your information, I actually do not generate the data locally it's just for this example to generate enough datasets.
Thanks for your help.
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link rel="stylesheet" href="https://kendo.cdn.telerik.com/2022.3.1109/styles/kendo.default-ocean-blue.min.css">
<script src="https://code.jquery.com/jquery-1.12.4.min.js"></script>
<script src="https://kendo.cdn.telerik.com/2022.3.1109/js/jszip.min.js"></script>
<script src="https://kendo.cdn.telerik.com/2022.3.1109/js/kendo.all.min.js"></script>
<title>Kendo Listbox</title>
</head>
<body>
<script id="listbox_template" type="text/kendo-x-tmpl">
<div>
<table class="listbox_trueberschrift" style="width:100%;">
<colgroup>
<col style="width:140px;">
<col style="width:180px;">
</colgroup>
<tr style="display:none;">
<td class="listbox_tdueberschrift" nowrap>Code</td>
<td class="listbox_tdueberschrift" nowrap>Beschreibung</td>
</tr>
<tr>
<td nowrap>#:OrderID#</td>
<td nowrap>#:ShipName#</td>
</tr>
</table>
</div>
</script>
<div id="example" role="application">
<div class="demo-section wide">
<input type='text' id='searchBox' class='k-input k-textbox k-input-solid k-input-md k-rounded-md' placeholder='Suchen' />
<div>
<select id="listbox1"></select>
<select id="listbox2"></select>
</div>
</div>
<script>
const maxRecords = 10000;
let dataSource2 = [];
let dataSource3 = [];
class MyData{}
function generateData(){
for (let i = 1; i <= maxRecords; i++) {
let myData = new MyData();
myData.OrderID = i;
myData.ShipName = "ShipName" + i;
if(i <= 5000) dataSource2.push(myData);
else dataSource3.push(myData);
}
};
generateData();
$(document).ready(function () {
$("#searchBox").on("input",function(e) {
var listBox1 = $("#listbox1").getKendoListBox();
var listBox2 = $("#listbox2").getKendoListBox();
var sarchString = $(this).val();
listBox1.dataSource.filter({ field: "ShipName", operator: "contains", value: sarchString });
listBox2.dataSource.filter({ field: "ShipName", operator: "contains", value: sarchString });
});
$("#listbox1").kendoListBox({
connectWith: "test",
draggable: true,
dropSources: ["listbox2"],
selectable: "multiple",
dataSource: dataSource2,
dataTextField: "ShipName",
dataValueField: "OrderID",
template: kendo.template($("#listbox_template").html()),
toolbar: {
tools: ["moveUp", "moveDown", "transferTo", "transferFrom", "transferAllTo", "transferAllFrom", "remove"]
}
});
$("#listbox2").kendoListBox({
draggable: true,
dropSources: ["listbox1"],
dataSource: dataSource3,
selectable: "multiple",
dataTextField: "ShipName",
dataValueField: "OrderID",
template: kendo.template($("#listbox_template").html()),
});
});
</script>
</div>
<style>
.demo-section label {
margin-bottom: 5px;
font-weight: bold;
display: inline-block;
}
#example .demo-section {
max-width: none;
width: 600px;
}
#example .k-listbox {
width: 236px;
height: 350px;
}
#example .k-listbox:first-of-type {
width: 270px;
margin-right: 1px;
}
</style>
</body>
</html>
Nikolay
Telerik team
answered
on
19 Jan 2023
2 answers
1.4K+ views
Hi,
The menu widget has an 'enable()' function, is there a similar way to hide a menu item the same way?
Thanks,
Grant
0 answers
121 views
Hello,
I'm trying to combine custom positions of shape connectors with the save and load functionality. I've combined the following two examples in the dojo:
https://docs.telerik.com/kendo-ui/api/javascript/dataviz/ui/diagram/methods/load
Dojo example: https://dojo.telerik.com/oqAloqOY/2
As you can see after loading the saved model the custom connectors are gone. Is there any way to persist them or at least re-apply them after load?
Thanks
The Cowboy
Top achievements
Rank 1
Rank 1
asked
on
17 Jan 2023
1 answer
422 views
I am trying to move away from using select2 multi-select. Ideally, I would like to call a function that returns the value for the kendo multi-select during initialization. The value will be retrieved by an AJAX call. Is there any way I could implement this? I tried using dataBound, but it looks like anything inside the data-bound will be called every time user clicks on the multi-select control.
During initialization, I don't want to call the dataSource. This will be updated every time user clicks open. I just need to update the value field based on the AJAX result.$("#multiselect").kendoMultiSelect({
dataSource: {
transport: {
read: {
url: "https://demos.telerik.com/kendo-ui/service/products",
dataType: "jsonp"
}
}
},
open: function(e){
// datasource is dynamic and should be updated with every click.
$('#multiselect').data('kendoMultiSelect').dataSource.read();
},
dataTextField: "ProductName",
dataValueField: "ProductID",
autoBind: false,
value: "IS IT POSSIBLE TO GET DATA FROM AJAX DURING INITIALIZATION?"
});
Martin
Telerik team
answered
on
17 Jan 2023
1 answer
125 views
The documentation for ScrollView autoBind is incorrect or incomplete. When examining the ScrollView autoBind API Reference the sample configuration does not mention or show proper usage of the autoBind configuration. Additionally, I am unable to get the ScrollView widget to initialize when setting autoBind: false
When using this configuration the widget does not initialize. If I set autoBind: true the widget binds to the dataSource but it does not honor the current query parameters.
This code runs correctly when autoBind: true. It fails when autoBind: false Dojo Snippet
<script id="scrollview-template" type="text/x-kendo-template">
<div style="width: 200px; height: 200px; background-image: #=setBackground(data.filename)#; background-repeat:no-repeat; background-size: cover;"></div>
<p>#= data.filename #</p>
</script>
<div id="container" style="margin: 20px;">
<div id="scrollView"
data-role="scrollview"
data-auto-bind="false"
data-pageable="true"
data-enable-pager="true"
data-template="scrollview-template"
data-bind="source: fruits"
data-content-height="100%"
data-page="0"
style="width: 400px; height: 300px; max-width: 100%;">
</div>
</div>
<script>
function setBackground(filename) {
return "url(https://demos.telerik.com/kendo-ui/content/shared/images/photos/" + filename + ")";
}
var viewModel = kendo.observable({
fruits: new kendo.data.DataSource({
data: [
{ filename: "15.jpg" },
{ filename: "16.jpg" },
{ filename: "17.jpg" }
],
schema: {
model: {
fields: {
filenname: { type: "string" }
}
}
}
})
});
$(document).ready(function() {
kendo.bind($("#container"), viewModel);
setTimeout(function(){
console.log("ScrollView Next - Refresh");
//var scrollView = $("#scrollView").kendoScrollView().data().kendoScrollView;
//scrollView.scrollTo(1);
//scrollView.refresh();
}, 1000);
});
</script>
Neli
Telerik team
answered
on
17 Jan 2023
0 answers
227 views
When utilizing an image editor control I receive the following output in console and the image does not load: Please see markup below
Html Page Div Implementation
Html Page Script Implementation
Console output
Result of View
My Layout has the following implementations for CSS and JS
Isaiah
Top achievements
Rank 1
Rank 1
asked
on
16 Jan 2023
0 answers
375 views
I am working on a page that has a table set to display: none and I want to have the Kendo UI Grid initialize its data set from this table. Unfortunately I am seeing that this does not work properly when the table has style=display: none as an attribute. In this situation I see the Grid's column headers render, but no rows are shown. Of course simply removing the display none style would fix the problem, but the table is several thousand rows and we have it hidden to increase page load performance.
Is there a way I can initialize the Kendo UI Grid from this hidden table, then show the grid afterwards?
DuelingCats
Top achievements
Rank 2
Rank 2
asked
on
15 Jan 2023
0 answers
134 views
Hello, dear colleagues.
I'd like to know, is there any approach to programmatically change grid's active page after calling dataSource.read transport method?
If I use dataSource.page(x), I'm having an infinite call chain.
I dont want to call dataSource read, my data is okay. I'd like to change grid's visual pager only, like "page 7 of 100".
Thank you.
