I am using Kendo TreeList to display hierarchical data. Application allows user to add new rows to the displayed data, or edit existing ones. I am not using inline editing.
Right now I add new rows by this piece of code:
treeList.dataSource.data().push(vm);
And if user edited some row, it is updated in dataSource:
for (i = 0; i < dsData.length; i++) {
if (dsData[i].get("TaskUid") === vm.get("TaskUid")) {
dsData[i] = vm;
var curId = vm.get("VisualId");
vm.set("VisualId", curId);
grid.dataSource.read();
onDataBound();
}
}
There is a side effect - upon calling dataSource.read() newly added items disappear from the TreeList control.
Question is - how am I supposed to add data and refresh data in treeList without such a side effect?
Probably you should consider to use
dataSource.pushCreate to add new element to the dataSource and
dataSource.pushUpdate to edit existing element inside the
dataSource
I copy some example of basic dropdownlist, and add 3 button
first button will add a new parent node
second button will edit the first parent node which is jane smith
third button add new child node on jane smith
Do it like this :
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Kendo UI Snippet</title>
<link rel="stylesheet" href="http://cdn.kendostatic.com/2015.1.429/styles/kendo.common.min.css">
<link rel="stylesheet" href="http://cdn.kendostatic.com/2015.1.429/styles/kendo.rtl.min.css">
<link rel="stylesheet" href="http://cdn.kendostatic.com/2015.1.429/styles/kendo.default.min.css">
<link rel="stylesheet" href="http://cdn.kendostatic.com/2015.1.429/styles/kendo.dataviz.min.css">
<link rel="stylesheet" href="http://cdn.kendostatic.com/2015.1.429/styles/kendo.dataviz.default.min.css">
<link rel="stylesheet" href="http://cdn.kendostatic.com/2015.1.429/styles/kendo.mobile.all.min.css">
<script src="http://code.jquery.com/jquery-1.9.1.min.js"></script>
<script src="http://cdn.kendostatic.com/2015.1.429/js/kendo.all.min.js"></script>
</head>
<body>
<!-- Define the HTML div that will hold the TreeList -->
<div id="treelist"></div>
<button id="new">Add new</button>
<button id="editParent">Edit Jane Smith</button>
<button id="addChild">Add child node to Jane Smith</button>
<!-- Initialize the TreeList -->
<script>
$(document).ready(function() {
$("#treelist").kendoTreeList({
columns: [{
field: "Name"
}, {
field: "Position"
}],
dataSource: {
data: [{
id: 1,
parentId: null,
Name: "Jane Smith",
Position: "CEO"
}, {
id: 2,
parentId: 1,
Name: "Alex Sells",
Position: "EVP Sales"
}, {
id: 3,
parentId: 1,
Name: "Bob Price",
Position: "EVP Marketing"
}]
}
});
});
$("#new").on("click", function() {
var newElement = {
id: 4,
parentId: null,
Name: "John Doe",
Position: "HRD"
};
$("#treelist").data("kendoTreeList").dataSource.pushCreate(newElement);
});
$("#editParent").on("click", function() {
var updatedElement = {
id: 1,
parentId: null,
Name: "Scooby Doo",
Position: "CEO Pet"
};
$("#treelist").data("kendoTreeList").dataSource.pushUpdate(updatedElement);
});
$("#addChild").on("click", function() {
var newElement = {
id: 5,
parentId: 1,
Name: "Ricky Martin",
Position: "EVP Legal"
};
$("#treelist").data("kendoTreeList").dataSource.pushCreate(newElement);
});
</script>
</body>
</html>
Related
I have a grid that has a grid in the detailInit and when I add a new row to the grid in the detailInit the detailInit collapses.
How can I stop it from collapsing when a new record is added? I have tried using e.preventDefault() on the button click event of adding a new row but that didn't work out.
You cannot prevent it from collapsing because every time you change something to the data it automatically rebinds and redraw the table.
What you can do however is to capture the rebinding, find the opened details and after the binding finish reopen them:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8"/>
<title>Kendo UI Snippet</title>
<link rel="stylesheet" href="https://kendo.cdn.telerik.com/2018.3.1017/styles/kendo.common.min.css"/>
<link rel="stylesheet" href="https://kendo.cdn.telerik.com/2018.3.1017/styles/kendo.rtl.min.css"/>
<link rel="stylesheet" href="https://kendo.cdn.telerik.com/2018.3.1017/styles/kendo.silver.min.css"/>
<link rel="stylesheet" href="https://kendo.cdn.telerik.com/2018.3.1017/styles/kendo.mobile.all.min.css"/>
<script src="https://code.jquery.com/jquery-1.12.4.min.js"></script>
<script src="https://kendo.cdn.telerik.com/2018.3.1017/js/kendo.all.min.js"></script>
</head>
<body>
<div id="example">
<div id="grid"></div>
<script>
let data = [{id: 1, FirstName: "Nancy", LastName: "Davolio", orders: [{title: 1}, {title: 2}]}];
$(document).ready(function () {
let expanded = [];
var element = $("#grid").kendoGrid({
dataSource: data,
toolbar: [{name: "create"}],
height: 600,
detailInit: detailInit,
editable: true,
columns: [
{
field: "id",
title: "id",
},
{
field: "FirstName",
title: "First Name",
width: "110px"
},
{
field: "LastName",
title: "Last Name",
width: "110px"
},
{command: ["destroy"]},
],
dataBinding: function (e) {
expanded = $.map(this.tbody.children(":has(> .k-hierarchy-cell .k-i-collapse)"), function (row) {
return $(row).data("uid");
});
},
dataBound: function (e) {
this.expandRow(this.tbody.children().filter(function (idx, row) {
return $.inArray($(row).data("uid"), expanded) >= 0;
}));
},
});
});
function detailInit(e) {
$("<div/>").appendTo(e.detailCell).kendoGrid({
dataSource: {
transport: {
read: function (options) {
options.success(e.data.orders);
},
}
},
});
}
</script>
</div>
</body>
</html>
To get row information of currently selected row we can do this
var current = e.sender.dataItem(e.sender.select());
But how to get the same when i click on Edit button?
I tried $("#grid").data("kendoGrid").dataItem($(e.sender).closest("tr")); it didnt work.
EDIT
I tried ways as suggested on the answers below, but its still giving me null.
in the screenshot the commented code doesn't work either
COMPLETE CODE
<script src="http://kendo.cdn.telerik.com/2016.3.914/js/kendo.all.min.js"></script>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>Kendo UI Snippet</title>
<link rel="stylesheet" href="http://kendo.cdn.telerik.com/2016.3.914/styles/kendo.common.min.css" />
<link rel="stylesheet" href="http://kendo.cdn.telerik.com/2016.3.914/styles/kendo.rtl.min.css" />
<link rel="stylesheet" href="http://kendo.cdn.telerik.com/2016.3.914/styles/kendo.silver.min.css" />
<link rel="stylesheet" href="http://kendo.cdn.telerik.com/2016.3.914/styles/kendo.mobile.all.min.css" />
<script src="http://code.jquery.com/jquery-1.9.1.min.js"></script>
<!--<script src="http://kendo.cdn.telerik.com/2016.3.914/js/kendo.all.min.js"></script>-->
<!--<script src="http://kendo.cdn.telerik.com/2016.3.914/js/kendo.all.min.js"></script>-->
<script src="Scripts/KendoUI.js" type="text/javascript">
</head>
<body>
<div id="grid">
</div>
<script>
$("#grid").kendoGrid({
columns: [
{ field: "id" },
{ field: "name" },
{ field: "age" },
{ command: "edit" },
{ command: "list" }
],
dataSource: {
data: [
{ id: 1, name: "Jane Doe", age: 30 },
{ id: 2, name: "John Doe", age: 33 }
],
schema: {
model: {
id: "id",
fields: {
"id": { type: "number" }
}
}
}
},
editable: "popup",
toolbar: ["create"],
dataBound: function (e) {
//<input name="age" class="k-input k-textbox" type="text" data-bind="value:age">
},
edit: function (e) {
//This currentItem is null :(
var currentItem = $("#grid").data("kendoGrid").dataItem($(e.sender).closest("tr"));
if (!e.model.isNew()) {
$('.k-window-title').text("Newton Sheikh");
}
}
});
</script>
</body>
</html>
If you use the edit function in the grid, you can access the data item attributes which is in edit mode using:
var grid = $("#yourGrid").kendoGrid({
dataSource: yourGridDatasource,
...
edit: function (e) {
var attribute = e.sender.dataItem(e.container).attributeName;
// or simply
var attribute2 = e.model.attributeName;
}
});
You should use e.container instead of e.sender, like this:
$("#grid").data("kendoGrid").dataItem($(e.container).closest("tr"))
Update to make it work with a popup
If you are using a popup editor, then the container will be the popup itself and the above will not work.
In that case, you can use the uid of the row to locate it within the table:
var row = $("#grid").data("kendoGrid").tbody.find("tr[data-uid='" + e.model.uid + "']");
If you do not need a reference to the actual row, but only the data item, then you can simply use e.model. I have created a dojo with your code and if you check the console after you click "edit", you will see that there is no difference: http://dojo.telerik.com/iqAPO
var gridDataById= $("#grid").data("kendoGrid");
//Getting selected row
var selectedRow = gridDataById.dataItem(gridDataById.select());
console.log(selectedRow);
I'm new to kendo and I would like to know whether is there a way to program my kendo grid like the image below.
I had saw some sample online where they use kendo-grid grouping but it doesn't generate the layout I needed
Output
Yes, it is possible by using a column template with a script expression that will transform the array of child items into an HTML list:
http://dojo.telerik.com/AqezO
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8"/>
<title>Kendo UI Grid</title>
<link rel="stylesheet" href="http://kendo.cdn.telerik.com/2016.3.914/styles/kendo.common.min.css"/>
<link rel="stylesheet" href="http://kendo.cdn.telerik.com/2016.3.914/styles/kendo.silver.min.css"/>
<script src="http://code.jquery.com/jquery-1.9.1.min.js"></script>
<script src="http://kendo.cdn.telerik.com/2016.3.914/js/kendo.all.min.js"></script>
</head>
<body>
<div id="grid"></div>
<script>
var sampleData = [
{ id: 1, name: "name", items: ["foo", "bar"] }
];
$(function () {
var dataSource = new kendo.data.DataSource({
data: sampleData,
schema: {
model: {
id: "id",
fields: {
id: { type: "number" },
name: { },
items: { }
}
}
}
});
$("#grid").kendoGrid({
dataSource: dataSource,
columns: [
{ field: "id" },
{ field: "name" },
{ field: "items", template: "#= showItems(items) #" }
]
});
});
function showItems(arr) {
return "<ul><li>" + arr.join("</li><li>") + "</li></ul>";
}
</script>
</body>
</html>
I have a Kendo UI Grid, which contains four columns:
Highlight MAC Time Message
The Highlight column can contain the values "yes" or "no", and this column is hidden.
I need to create a row template that will highlight (change the color or something) the row if the value is yes.
Please try with the below code snippet.
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Untitled</title>
<link rel="stylesheet" href="http://cdn.kendostatic.com/2015.1.318/styles/kendo.common.min.css">
<link rel="stylesheet" href="http://cdn.kendostatic.com/2015.1.318/styles/kendo.rtl.min.css">
<link rel="stylesheet" href="http://cdn.kendostatic.com/2015.1.318/styles/kendo.default.min.css">
<link rel="stylesheet" href="http://cdn.kendostatic.com/2015.1.318/styles/kendo.dataviz.min.css">
<link rel="stylesheet" href="http://cdn.kendostatic.com/2015.1.318/styles/kendo.dataviz.default.min.css">
<link rel="stylesheet" href="http://cdn.kendostatic.com/2015.1.318/styles/kendo.mobile.all.min.css">
<script src="http://code.jquery.com/jquery-1.9.1.min.js"></script>
<script src="http://cdn.kendostatic.com/2015.1.318/js/kendo.all.min.js"></script>
<style>
.change-background {
background-color: red;
}
</style>
</head>
<body>
<div id="grid"></div>
<script type="text/javascript">
var ds = new kendo.data.DataSource({
data: [{
Highlight: "Yes",
MAC: "111",
Time: "aaa",
Message: "a1"
}, {
Highlight: "No",
MAC: "222",
Time: "bbb",
Message: "b2"
}]
});
$("#grid").kendoGrid({
dataSource: ds,
dataBound: onDataBound,
columns: [
{ hidden: true, field: "Highlight" },
{ field: "MAC" },
{ field: "Time" },
{ field: "Message" }
],
});
function onDataBound(e) {
var grid = $("#grid").data("kendoGrid");
var data = grid.dataSource.data();
$.each(data, function (i, row) {
if (row.Highlight == "Yes") {
var element = $('tr[data-uid="' + row.uid + '"] ');
$(element).addClass("change-background");
}
});
}
</script>
</body>
</html>
Let me know if any concern.
You can apply condition in Row Template, Try Something like below
$("#grid").kendoGrid({
dataSource: ds,
rowTemplate: '<tr class="#:Highlight ==\"Yes\"? \"red\" : \"white\"#" data-uid="#= uid #"><td>#: MAC #</td><td>#:Time #</td><td>#:Message#</td></tr>'
});
DataSource
var ds = new kendo.data.DataSource({
data: [{
Highlight : "Yes",
MAC :"...",
Time :"...",
Message:"...."
}, {
Highlight : "No",
MAC :"...",
Time :"...",
Message:"...."
}]
});
i want to set diff. id of kendo drop down parent <span>
here is simple code of two d-d
<!DOCTYPE html>
<html>
<head>
<title></title>
<link href="kendo/styles/kendo.common.min.css" rel="stylesheet" />
<link href="kendo/styles/kendo.default.min.css" rel="stylesheet" />
<script src="kendo/js/jquery.min.js"></script>
<script src="kendo/js/kendo.web.min.js"></script>
</head>
<body>
<input id="dropdownlist" />
<input id="newdropdownlist" />
<script>
$("#dropdownlist").kendoDropDownList({
dataSource: [
{ id: 1, name: "Apples" },
{ id: 2, name: "Oranges" }
],
dataTextField: "name",
dataValueField: "id",
index: 1
});
$("#newdropdownlist1").kendoDropDownList({
dataSource: [
{ id: 1, name: "Apples" },
{ id: 2, name: "Oranges" }
],
dataTextField: "name",
dataValueField: "id",
index: 1
});
</script>
</body>
</html>
how can set different id of both drop down span help me out this.
thanks.
You can use the jQuery .closest() function to move up the DOM tree and find a parent.
$("#newdropdownlist1") // target the original input element
.closest(".k-dropdown") // move up the DOM to the dropdown span
.attr("id", "theNewId"); // change the id attribute