Request component update using ajax from LazyDataModel.load?

Question

I am using PrimeFaces version 3.5.

I want to implement a message informing that the filter in the DataTable returns too many rows and only the first 50 will be displayed.

I tried to do this with both posts and outputText. I set the text to display and request the update:

RequestContext context = RequestContext.getCurrentInstance(); context.update("form:message"); context.update("form:text"); message = "Too many rows"; 

Components:

 <p:message id="message" for="message"/> <h:outputText id="text" value="#{userPicker.model.message}"/> 

However, I do not see the correct update sections in the partial request response. Can I request component updates from the LazyDataModel.load function (and if, what am I doing wrong here)? If this is not possible (why?), How else can I force an element to be updated from DataTable filtering?

Answer 1

The load LazyDataModel method is called during the render phase when it is too late to add additional components for the update.

However, you can add the JavaScript execution command:

 context.execute("show_message()"); 

If the show_message function displays a message on the client side, allowing you to complete the task with a single request.