Re: [Haskell-cafe] Gtk2hs multiple column TreeView with ListStore issue

Andy Stewart writes:

Hi Кирилл,

Here have a simplest code at http://code.haskell.org/gtk2hs/gtk/demo/treelist/ListDemo.hs

Cheers,

-- Andy

PS:

All gtk2hs user, it's always best choose to read source code of demo when you don't know how to fix some problem.

Demo has include in Cabal package. Example, we have build demo sub-directory in package gtk-0.12.0.tar.gz Otherwise package, such as Cairo and Pango is same. Others package, damn english helper. :)

-- Andy

Of course, ask in gtk2hs-user mailing-list (gtk2hs-users@lists.sourceforge.net) are welcome! :)

Кирилл Березин writes:

...

I cannot force GTK to render data in TreeView with ListStore model with multiple columns through Haskell. I have the following code

addTextColumn view name =

    do

    col <- treeViewColumnNew

    rend <- cellRendererTextNew

    treeViewColumnSetTitle col name     treeViewColumnPackStart col rend True     treeViewColumnSetExpand col True     treeViewAppendColumn view col

prepareTreeView view =

    do

    addTextColumn view "column1"

    addTextColumn view "column2"

    --adding data here

Then I try to add some data, and there are problems. I tried these:

    --variant 1 (data TRow = TRow {one::String, two::String}

    model <- listStoreNew ([] :: [TRow])

    listStoreAppend model $ TRow { one = "Foo", two = "Boo" }

    treeViewSetModel view model

    --variant 2

    model <- listStoreNew ([] :: [[String]])

    listStoreAppend model ["foo","boo"]

    treeViewSetModel view model

    --variant 3

    model <- listStoreNew ([] :: [(String, String)])

    listStoreAppend model ("foo", "boo")

    treeViewSetModel view model

But in all cases I see the table with column header and one blank row inserted. Any help will be appreciated.

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