lazy loading client side data source based on paging

[Chris]

It looks like by default creating a dataSource with a data array automatically loops through the entire array and does some operations on all of the members.  Is there a way to suppress this or have the reading of the elements controlled by a function?  I do not want the data source to access all of the members until it has a need to do so ... maybe this need is present and I'm just unaware of it.  I have an array that I want my data source to operate.  This array lazy loads its values at the time they are accessed.  I am giving this data source to a grid with a pager. I do not want my data source items to actually load until the pager / grid needs them for display.  Unfortunately I cannot use server side paging ... I must do this all through the client.  Can anyone think of some ways this can be accomplished, either through manipulating the data source and a pager, or maybe by mocking server side paging requests in the client?  Any help would be appreciated.  

[Atanas Korchev]

Hi Chris,

Indeed the data source iterates all items provided in the `data` option. You can perhaps implement a custom support and enable server paging to. Here is a working sample: http://trykendoui.telerik.com/@korchev/asiF

Regards,
Atanas Korchev
Telerik

 

 

[Chris]

Thank you Atanas, this is exactly what I was looking for.