Kendo UI grid dropdown and angular - angularjs

Question

I try to setup custom dropdown in Kendo UI.
I have a reference to my issue.
http://dojo.telerik.com/aFIZa/13
My issue is that I do not know how I can setup the selected text in the template attribute? I want to show the text field but save the id as a value. And I do not want to use external datasource. I would like it as inline in the json.
The code is below:
$scope.mainGridOptions = {
dataSource: $scope.dataSource,
pageable: true,
height: 550,
toolbar: ["create"],
columns: [
{ field: "Category", title: "Category", width: "180px",
editor: function(container, options) {
var editor = $('<input kendo-drop-down-list required k-data-text-field="\'cat\'" k-data-value-field="\'id\'" k-data-source="{data:[{id: 1, cat: \'test\'}, {id: 2, cat: \'test2\'}]}" data-bind="value:Category"/>')
.appendTo(container);
$compile(editor)($scope);
editor.css("visibility", "visible");
}
, template:"selected text in the combo "
}
], editable: true
}

Answer 1

Ok, this was a tough one, but I think I could achieve what you want, or at least I got closer:
$scope.mainGridOptions =
{
dataSource: $scope.dataSource,
pageable: true,
height: 550,
toolbar: ["create"],
columns: [
{
field: "Category", title: "Category", width: "180px",
editor: function(container, options)
{
// #1
var editor = $('<input kendo-drop-down-list required k-data-text-field="\'cat\'" k-data-value-field="\'id\'" k-data-source="{data:[{id: 1, cat: \'test\'}, {id: 2, cat: \'test2\'}]}" data-bind="value:Category,events:{ change: onChange }"/>')
.appendTo(container);
$compile(editor)($scope);
editor.css("visibility", "visible");
},
// #2
template:kendo.template($("#column-template").html())
}],
editable: true,
// #3
edit: function(e)
{
var ko = kendo.observable(
{
onChange: function(e)
{
var el = $(e.sender.element);
var ddl = el.data("kendoDropDownList");
var ds = $scope.dataSource.getByUid(el.closest("tr").data("uid"));
ds.OptionText = ddl.text();
},
});
var widget = $(e.container).find("input");
kendo.bind(widget, ko);
}
}});
Demo.
In the code you can notice 3 changes:
data-bind="value:Category,events:{ change: onChange }" Look that I have added an events object in the bind, which I declare onChange as the change event handler. We'll talk about this in the 3rd item below;
For a complex template(with javascript code and logic) I created a script content and rendered it at the template property. The template is this:
<script id="column-template" type="text/x-kendo-template">
# if (data.hasOwnProperty('OptionText')) { #
#: OptionText #
# } else { #
#: "selected text in the combo" #
# } #
</script>
In the template I simply check for the property OptionText in the model(dataSource's current item) and: if it exists, use it; else, use the default text. We'll talk about OptionText in the 3rd item, below;
Now, here I have added an edit event to the grid. In that event I created an observable object, where I define the onChange function handler. In that function I seek for the current dataSource(ds) and I add text of the selected item in the dropdownlist in it, as the property OptionText, which I use in the template above explained.
I hope this explains how it works(in fact I hate working with those binders and observables, but sometimes they are needed).
Good luck.