Re: Search Column in TreeView

[Zettai Muri <zettaimuri gmail com>]

On Sun, Nov 14, 2010 at 11:09 AM, Zettai Muri <zettaimuri gmail com> wrote:
> Hi All,
>
> I have a strange problem with my main program I am developing.  I am
> attempting to specify which column may be searched via:
> use constant NAME_COL => 2;
> ...
> $treeview->set_search_column(NAME_COL);
>
> Or even if I set the column to something irrelevant, i.e.:
> $treeview->set_search_column(800); # there are only about 5 columns in
> my treeview
>
> The search as you type matches only occur on the first column.
>
> In most of my treeviews the first column is the ID column.
> So typing 1723 goes to the row that has '1723' in the first column.
>
> But if I type 'Star Wars' for example which appears in the name column
> then nothing happens (no match occurs).
>
> I spent a good hour or so this morning trying to create a Short
> Self-Contained Example (SSCE) reflecting the above issue but
> "unfortunately" that one works just great.  If I specify column 3,
> searches as you type occur on column 3.  If I specify column 4 then it
> again works and matches what is typed.
>
> I copied code from my main app to create the treeview in the SSCE.
>
> I am now completely lost as what to do.
>
> Is anyone able to list some common mistakes that I may be making, or
> things to check for?
>
> While grasping for straws this morning I tried to find differences
> between my main app and the SSCE, which led me to:
> * Whether or not it was a libglade (main app) gui Versus a GtkBuilder gui
> - I created both kinds and the SSCE worked fine regardless of gui file format.
>
> * Whether or not having Japanese characters in one of the columns
> interefered with the search in someway
> - SSCE worked fine with and without a column of Japanese characters
>
> One thing I haven't tried and I have no idea if it could be affecting
> it is that I am populating my ListStores with data from a MySQL
> database in my main app while the SSCE is populated from an array
> within it.
> Can any of you gurus think of something here that may be making it
> only match the first column?
>
> I know I'm reaching but am out of ideas.  If anyone has anything that
> I should be checking, please let me know.
>
> Many thanks.
>
> zettai.

Woohoo!  Figured it out.

I was passing my treeview amongst subs as a copy rather than a
reference.  Now I do:

create_treeview(\$my_new_tv);

sub create_treeview
{
    my $treeview = shift;
    # Create columns
    ....
    $$treeview->append_column($tc_id);
    $$treeview->append_column($tc_name);
    ....
    $$treeview->set_search_column(NAME_COL);
}

And the search as type works for the specified column.