Prevent paging/sorting/filtering when cells have been edited

[Brian Roth]

With a batch edit grid, I wanted to write a method that would warn the user if they try to do a page/sort/filter operation when they have data that hasn't been saved.  I figure I can look for any cases where .k-dirty-cell shows up and if any are found I can launch a confirm dialog that asks "Save changes before continuing?" or something like that.  But what I can't figure out is what event on the grid or datasource I would need to hook into for this logic.  Ideally, I'd want to have it fire before the read() operation is called on the datasource since that would catch pretty much any situation where the data might get overwritten.  Any suggestions on how/if this can be done?

Thanks!

Regards,
Brian

[Alexander Valchev]

Hi Brian,

I am afraid that this scenario is not supported at the moment.
As a general information, I believe that you are looking for the requestStart event of the dataSource, which is triggered before read operation. But even if you hook up to this event, you will not be able to prevent the default dataSource behaviour from there.

Such functionality sounds like a meaningful and useful improvement, so I would like to ask you to submit your idea at our user voice page. Thus way other users would be able to comment and vote for it. If it turns out to be popular we will consider it for one of the future releases.

Regards,
Alexander Valchev
the Telerik team

[Brian Roth]

Hi Alexander,

Thanks for the reply.  I posed in the User Voice, so we'll see what happens.  I think in the meantime, I'll try hooking in to requestStart to at least pop up a warning message to the user.  Maybe I can even kick off a save in that method to somewhat help with the situation.

Regards,
Brian