Questions on Kendo UI for jQuery Forum

3 answers

344 views

Unable to get value of the property 'length': object is null or undefined

Hi,

I have a treeview and bind datasource form web api.
When I tried to drag and drop node and an error occurred, "Unable to get value of the property 'length': object is null or undefined " in IE9.

There is my code

<script>

$(function () {

var serviceRoot = "http://localhost:12181";

var homogeneous = new kendo.data.HierarchicalDataSource({

transport: {

read: {

url: serviceRoot + "/api/Group",

dataType: "json"

}

},

schema: {

model: {

id: "Id",

hasChildren: "hasChildren"

}

});

$("#treeview").kendoTreeView({

dragAndDrop: true,

dataSource: homogeneous,

dataTextField: "Name"

});

</script

<div id="treeview"></div>

Any advice?

TreeView

answered on 17 Sep 2012

3 answers

413 views

Always reload child nodes on expand

Is there a way to force the TreeView to reload all child nodes (AJAX) when a parent node is expanded?

Right now the children are only loaded once when the parent is first expanded. I would like to have the treeview completely refresh all children from an AJAX call each time the parent node is expanded.

Thank you.

=== EDIT ===

It looks like I can use the _view array of the tree view's dataSource property and call the load() method of the view, but how do I get the view's index?

TreeView

answered on 17 Sep 2012

3 answers

757 views

Custom sort order for group headers in Grid

Hi

Is there a way to specify the sort order for group headers in a grid?

I am returning the sort order as a number in another field and would like to display the groups sorted according to this field. Additionally I do not want to display the grouped field in the table as a column.

As a work around, I've concatenated the sort field and group field values together and used that to group by but, although it works, it doesn't look good. I thought of using the groupHeaderTemplate to then remove the sort prefix before displaying it but seeing as I don't want to display this info in a column, I don't have a way to specify the template.

Is there a way to specify a field in the columns section of a grid but not display it as a column (e.g. field "Section", hide: true) ?

Please help.

Grid

answered on 17 Sep 2012

2 answers

147 views

IE9 and the infinite splitter scrollbar with treeview

View this jsfiddle with Internet Explorer 9 and mouse over the items to see the effect:
http://jsfiddle.net/Krt9C/3/

The effect goes away once the treeview has enough room to display all items (the treeview horizontal scrollbar disappears).

Is there a workaround? Note, IE9 is the only confirmed browser that does this.

General Discussions

answered on 17 Sep 2012

1 answer

175 views

splitter not working

Hi,
This is my first time to use Kendo UI. I am failed to apply applitter although follow the steps online (testing using VS2012 RC and kendoui.trial.2012.2.710). Could you point out what is missing? Thank you very much.

Splitter

answered on 17 Sep 2012

0 answers

92 views

Grid customisation

We are currently comparing a few grids for a new project, one of which is Kendo's grid. It seems really nice out of the box but seems to be lacking some simple customisation i.e. custom column header css classes. Is this currently possible? There doesn't seem to be a column property for this.

Regards

Grid

asked on 17 Sep 2012

0 answers

110 views

set the grid dirty cell

first of all
my grid can't be edit.
but i want to use the dirty cell class,through the json data.

Grid

asked on 17 Sep 2012

0 answers

82 views

Pie Chart Lable margin to maximize vertical space

I want to make the pie chart as large as possible vertically. I need to be able to push the labels that appear in the top and bottom areas to the sides. Do I mess with plotArea? Or how should I go about tweaking the configs for this?

Charts

asked on 16 Sep 2012

7 answers

1.0K+ views

Any full sample or customer site running with Kendo UI/MVC?

Hello;
I was talking to a prospect today about the benefits of Kendo UI and they asked me if Kendo UI has a full sample or links to sites that are using Kendo either in Ajax form or with ASP.Net MVC.

Many Web development tools offer full samples (multi pages) for example a shopping cart with products, listings, orders and etc to showcase their products.

Thanks!
..Ben

General Discussions

answered on 16 Sep 2012

2 answers

127 views

Mobile button bound to observable (MVVM)

I am trying to bind a Kendo mobile button to a javascript model (kendo.observable). I'd like to have the button disabled until the model says everything is valid.

I've created a small jsFiddle that shows my problem. Should the mobile button be "bindable" to a kendo observable model?

http://jsfiddle.net/jeremy_wiebe/SxYCb/

Thanks,

Button (Mobile)

answered on 16 Sep 2012