Detail Window of a Tab canvas

Question

I have a tab canvas with one tab filling up the whole tab page with 15 horizontal line, but the last column is a detail button which I want to see additional info for that line,
should I add rowid for that block - to select that row when I press the detail button??
Do I use a stacked canvas or a content canvas?
Do I need a new block for that detail info and use a post query from the 1st block to populate the second block??
Any insight would be helpful
Thx

Answer 1

Since you are so set on the post-query method, do this:
Do NOT use a post-query. Just create one or more additional items in the same block that are assigned to a separate stacked canvas. Set these items singly-occurring (property Number-of-Items-Displayed = 1). Create a "Details" button in your block on the main canvas that user can click. All its WBP trigger needs to do is:
    Go_Item('Blk.Detail_Item');
I don't think you even need a:
    Show_View('Detail_Canvas');
On the stacked canvas, create a cancel button with a WBP trigger that does a Go_Item('Blk.<main-canvas-item>'). And make sure you cannot use the Tab or Enter key to navigate into the details canvas items (Set the appropriate Next-Navigation-Item properties).
The above method is certainly the easiest. However, if for some odd reason, you don't want to fetch all the details for every record during the initial query, then you can use a different method. This one involves the same stacked canvas and details button. But use a control block and one or more items to display the data. In the WBP trigger, Select detail_columns into :Control_Block.detail_item where rowid = :base_table_block.rowid; and then Go_Item('Control_block.detail_item'); Control_block.detail_item is of course displayed on the stacked canvas.