Column Selection in TkTable

[dmaggian]

Hey all,

I'm new to the forum but not new to tcl though I've been away from it for some years. I'm writing a control application that needs to send data to a remote embedded device and using the tkTable widget for the first time as an interface.

I started with a variation of the buttons.tcl demo that comes in the 8.4 active state distribution. I need to send the data, one column at a time over tcp when I hit a send button. What I'd like the gui to do is highlight each column as it's being sent but I can't figure out how to do this from inside the program. When I set -selectmode to extended I can manually click on a column header and it will select the whole column. I have a small status field set up to show the row,column selections and it always looks like 0,1 or 0,19. However when I put a line in the program like

$t selection set 0,13

it selects just that one cell. So what do I need to do to highlight a whole column from inside the program.

 

[Bong]

I think you'll have to use the -selctioncommand option when you instantiate the table:

[ignore]
Command-Line Name:-selectioncommand or -selcmd Database Name: selectionCommand
Database Class: SelectionCommand

Specifies a command to evaluate when the selection is retrieved from a table via the selection mechanism (ie: evaluating «selection get"). The return value from this command will become the string passed on by the selection mechanism. It uses the %-substition model described in COMMAND SUBSTITUTION below. If an error occurs, a Tcl background error is generated and nothing is returned.
[/ignore]

That way, when you select any cell, you can program the command to identify the column, choose all cells in that column and parse them into a string that you will then do with what you will.

_________________
Bob Rashkin