Callback suggestions

[erickr]

Hello,

On startup I need to call some datasources but after my UI is loaded to avoid nulls. I have tried overloading onLoad() as suggested in the docs on a Layout (method is in superclass Widget a few levels up) but it doesn't seem to get the call.

Any help appreciated,
Eric

[smartgwt.dev]

Try addDrawHandler

[erickr]

That worked great thanks. Once the content is loaded I make a call to the backend to see if session.getRemoteUser is set(in the case of a SSO authentication as in Production) or null so I can do a local login. The app has application-based security.

Eric

[cirovladimir]

Try addDrawHandler

addDrawHandler works but... why onLoad event isn't getting called?

[chimpeenuts]

Any response to Ciro's question?

I am in a situation where I need to call datasource.fetchdata whenever the widget is shown.

Although there is a VisibilityChangedHandler, I noticed this DOES NOT get called the first time the widget is actually shown (a bit annoying).

So I was happy to see an onLoad method and tried to override it but found it was never called.

So after looking at onLoad, onInit, onInit_Layout, etc. I found that the only handler that did get called the first time a widget was shown was the DrawHandler and put my fetchdata call in that method.

Is this the right way to handle this situation? I was hoping I could put my code into onLoad or just in VisibilityChangedHandler but that doesn't seem to work.

[Isomorphic]

DrawHandler is the right one to use, and the others don't work because they are just inherited from GWT base classes and do not apply to SmartGWT widgets - use SmartGWT APIs as a first choice, always.