Simple DataSource not working in Diagram (does work in e.g. Grid)

[Itai]

I have made this very simple example which refuses to work: http://dojo.telerik.com/OtIhA

I keep getting "Uncaught TypeError: Cannot read property 'toLowerCase' of undefined". 

Curiously, changing 'kendoDiagram' to 'kendoGrid' works perfectly. So why does this data source work with Grid but not Diagram, and how can I get it to work? 

[Itai]

Well, apparently when providing "dataSource", you must provide connections, and they must be given in the form of a data source as well. Changing `connections` to `connectionsDataSource` solved the problem. 

 

Still, a better error message and a mention in the documentation about this behavior would have been nice. 

[Daniel]

Hello,

Indeed, the dataSource should be used with the connectionDataSource. The connections option should be used with the shapes option to statically set the elements with the options. Still, an error should not be thrown. We will fix it for the next internal build.

Regards,
Daniel
Telerik

 

 

[Daniel]

Hello again,

It seems that we cannot reliably avoid the error in this case. The diagram will expect a HierarchicalDataSource if a single dataSource is used and a flat dataSource instance is set in the scenario from the example. We will throw an error with meaningful message instead.

Regards,
Daniel
Telerik