Data source data

[Andres]

I have a datasource, and i need to get the first element, and save it into a variable.
The methods get(x) and at(x), doesn't work. How can i do this?

[Alexander Valchev]

Hello Andres,

In order to retrieve the dataSource records you can use the data or view methods. The first item you can get by its index ( dataSource.data()[0] / dataSource.view()[0] ) or by using the at method ( dataSource.at(0) ).

If those approaches does not work, the reason might be the dataSource does not contain any records ( e.g. the dataSource.data() returns empty array [ ] ). Most likely that will happen if:

• the read action was not invoked ( dataSource.read() )
• the asynchronous Ajax request is not finished at the time when you try to get the first item - that is why I recommend to hook up to the change event.
• the data of the schema is not defined or does not point to the element that contains the data array.

All the best,
Alexander Valchev
the Telerik team