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Re: Updating table in the canvas

by arnaud99 (Beadle)
on Mar 05, 2013 at 10:40 UTC ( #1021800=note: print w/replies, xml ) Need Help??

in reply to Updating table in the canvas


I have not played with Perl Tk in a while, but one thing strikes me as missing in your push_button sub. Consider updating it with the code that fills the table

Hopefully this can give you a starting point to populate the table

. . . my $tf2= $frame2->Entry(-width=>8,-bg=>'white')->pack(-side=>'left',-p +ady=>3); my $frame3= $canvas2->Frame(-relief=>'groove',-borderwidth=>3, -bg=>'b +lue')->pack(-side=>'top',-fill=>'x'); my $btn3= $frame3->Button(-text=>"Enter", -command =>\&push_button)->p +ack(); sub push_button { $rows= $tf1->get(); $columns= $tf2->get(); print "I have been summoned\n"; #move this here, Filling the table according to rows and columns for(my $row=0;$row<$rows;$row++) { print "$row\n"; for(my $column=0;$column<$columns;$column++) { print "\t$column\n"; my $label=$canvas1->Label( -text=>"$row $column", -height=>2,-width=>10, -relief=>"raised", -background=>'white'); $table->put($row,$column,$label); } } } MainLoop;

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Node Type: note [id://1021800]
[SuicideJunkie]: Just wait; someday soon, you'll be given a DB with unicode emojis in the column names.
[Corion]: marinersk: Well, I have done select statements like select sum(foo) as "Total Amount", ..., but to have a table like that makes me shudder
[Corion]: SuicideJunkie: :-D
[marinersk]: SuicideJunkie LOL
[choroba]: Woohoo! Fixed a test that hasn't run for 3 years.
[marinersk]: Corion Yes, sometimes whitespace in column headers is acceptable, but I still consider it be less than desireable if that query might get revectored for an ETL-esque process...
[marinersk]: choroba++
[choroba]: it's a long running test, so it's normally skipped unless an env var is set
[choroba]: nobody has been bothered to set the variable in the last 3 years
[marinersk]: sub newtest{my $expected_result = &target('foo'); my $actual_result = &target('foo'); if ($actual_result eq $expected_result) { &tdd_success(); } else { &tdd_fail(); } } # Test works after three years!

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