Mistake on p.15 of WDJ Tut #3 Note: this is also marked as a question!

[Former Member]

At the top of p.15 of WDJ Tutorial #3 (Simple Input Form), it says to name the transparent container "Button Container". If you do this, you get an error saying there is already a button container, which is true because we put one inside the Form Group when told to do so on p.14.

So instead of calling the second transparent container "ButtonContainer", I just called it "MessageContainer".

But here's my question:

Why can't NWDS keep track of these view items by their fully resolved names, so that a name like "SomeContainer" within the Form Group of the Form View is distinct from a container with the same name "SomeContainer" within the Root Container of the Form View?

Doesn't the Java refer to these things by their fully resolved names ????

[Former Member · Accepted solution]

View elements must have unique IDs per view. If you don't set an ID by yourself, the view designer assigns such a unique ID automatically like "Button1" etc.

As a rule of thumb, I would assign explicit IDs only to view elements that are

- accessed in wdDoModifyView()

- represent some semantic entity in the view, e.g. some data table

For other elements like labels etc. it's often not really necessary to assign "nicer" IDs than the auto-generated ones.

In the generated code there are no references generated for these IDs, only a hash map containes them as keys, That's why they have to be unique per view.

Armin

[former_member181923 · Accepted solution]

Ah - hash maps!

Thanks very much for answering that one.

Regards

djh

[former_member181923]

Also, this transparent container must be marked GridLayout; otherwise, the colCount field does not appear and you therefore can't set it to 2.