Troubling Tables

[kuch68]

I am wondering what I am missing with trying to populate a table to be displayed in the UI. I have tried a bunch of steps to debug, and nothing in the log file seems to point to Java exceptions. I was trying to pass a string array into the table, now I am only trying to pass a string value returned from the java function. And I know the Java function works because I used it to name a item widget in the same UI screen. Here's the code:

+ Panel (Todays Forecast)
    + Action (jbk_projects_reportWeather_saveWeatherWeb(newWeather, "Stuttgart"))
          + Table (CurTable)
               + TableComponent (CurCell)
                    + Text (Untitled)
                         + Theme (Cell Theme)

I tried a couple iterations of removing the theme and text widgets and replacing with an item widget. I can't get any thing displayed to the screen though. Anyone see something wrong here.

Once I get this figured out, is there any difference between Java returning an array and a string to a table?

thanks again.

[nielm]

The parent of a Table should be a Java array or list (ie something that GetElement can work with)

The TableComponent returns the 'current' item in that list, so the name of the TableComponent should be used to retrieve the values for the 'current' table cell being rendered...

eg:

DataUnion("a","b","c","d","e")
+> Table (mytable)
   +> TableComponent (curCell)
      +> Action ("Value of this cell is "+curCell)
         +> Text(untitled)

[kuch68]

Originally Posted by nielm

The parent of a Table should be a Java array or list (ie something that GetElement can work with)

The TableComponent returns the 'current' item in that list, so the name of the TableComponent should be used to retrieve the values for the 'current' table cell being rendered...

eg:

DataUnion("a","b","c","d","e")
+> Table (mytable)
   +> TableComponent (curCell)
      +> Action ("Value of this cell is "+curCell)
         +> Text(untitled)

Can an action be a direct child of a table component? Sage will not let me do this.

[GKusnick]

No, you'll have to put a Panel there or something. (See p. 46 of the Studio manual for a table of what can go where.)

Niel's point, though, is that TableComponent does not set "this". It sets a variable instead, where the variable name is the same as the TableComponent's name. So you can't just fall through from a TableComponent to a Text and expect "this" to be defined. You need an Action widget above the Text to set "this" for you by referring to the TableComponent's name.

[Opus4]

Also, there is a tutorial that has Table widget usage examples, starting on p. 105 of the v5.0 Studio manual. It might help clear up what to feed to a Table, and what you will get out of it.

- Andy

[kuch68]

Originally Posted by Opus4

Also, there is a tutorial that has Table widget usage examples, starting on p. 105 of the v5.0 Studio manual. It might help clear up what to feed to a Table, and what you will get out of it.

- Andy

Thanks everyone. That cleared everything up. My Java code and Sage are playing nice again.