client x server side data validation

Webix JS
1

Is there any facility for validation of component data against server data? I would use it to validate log in form.

2

Hi,

please check the article about client-side validation:

http://docs.webix.com/desktop__data_validation.html

3

Sorry but I was talking about checking if data item(primary key or not) exist in server DB. Maybe a method capable of reading a single row in a datatable returning the row data if exist or false otherwise. I am trying to do this with load method with onAfterLoad /onAfterFilter combination in a custom filter. However for some unknown reason the "grid.data.attachEvent{onAfterfilter} is firing twice for a single execution. Do you kow why please?

4

I don’t think that Webix have something for such kind of validation. You can use common webix.ajax calls to send a row data to a server side, and based on its response mark row as invalid. (

is firing twice for a single execution

If you have multiple filters per grid, the onAfterFilter method may be called multiple times ( once per filter )