I would like to pass some double value to ListStore's constructor but it doesn't allows me to do.

import gtk.Main;
import gtk.MainWindow;
import gtk.Box;
import gtk.ListStore;
import gtk.TreeView;
import gtk.TreeViewColumn;
import gtk.TreeIter;
import gtk.CellRendererText;


class MyWindow: MainWindow
{
    Box mainBox;

    this()
    {
        super("Tree view exercise");
        setBorderWidth(10);
        mainBox = new Box(Orientation.HORIZONTAL, 0);
        add(mainBox);


        showAll();
    }
}

class InfoModel: ListStore /* model */
{
    this()
    {
        super([GType.STRING, GType.DOUBLE]);

    }

    void addGoods(string name, double price)
    {
        TreeIter iterator = createIter();
        setValue(iterator, 0, name);
        setValue(iterator, 1, price);
    }
}

class DisplayModel: TreeView /* view */
{
    TreeViewColumn articleColumn;
    TreeViewColumn priceColumn;

    this (ListStore model)
    {
        articleColumn = new TreeViewColumn("Article", new CellRendererText(), "text", 0);

    }

}

void main(string[] args)
{
    Main.init(args);
    new MyWindow();
    Main.run();
}

When I try to compile this program it gives this error message:

Error: none of the overloads of 'setValue' are callable using argument types (TreeIter, int, double), candidates are:

import/gtk/ListStore.d(273):        gtk.ListStore.ListStore.setValue(TreeIter iter, int column, string value)
import/gtk/ListStore.d(281):        gtk.ListStore.ListStore.setValue(TreeIter iter, int column, int value)
import/gtk/ListStore.d(569):        gtk.ListStore.ListStore.setValue(TreeIter iter, int column, Value value)

Also is it possible to round this double to 2 decimal places when presenting data with GtkTreeView.

On 01/14/2017 11:47 AM, Erdem wrote:

>     void addGoods(string name, double price)
>     {
>         TreeIter iterator = createIter();
>         setValue(iterator, 0, name);
>         setValue(iterator, 1, price);
>     }
> }

> Error: none of the overloads of 'setValue' are callable using argument
> types (TreeIter, int, double), candidates are:
>
> import/gtk/ListStore.d(273):
> gtk.ListStore.ListStore.setValue(TreeIter iter, int column, string value)
> import/gtk/ListStore.d(281):
> gtk.ListStore.ListStore.setValue(TreeIter iter, int column, int value)
> import/gtk/ListStore.d(569):
> gtk.ListStore.ListStore.setValue(TreeIter iter, int column, Value value)

It looks like ListStore is a collection of 'Value's. Does the following work?

    setValue(iterator, 1, new Value(price));

https://github.com/gtkd-developers/GtkD/blob/3e18afcc5f0b970db1ed042c3818cafebccb35bb/src/gobject/Value.d#L48

Ali

On Sunday, 15 January 2017 at 01:36:44 UTC, Ali Çehreli wrote:

> It looks like ListStore is a collection of 'Value's. Does the following work?
>
>     setValue(iterator, 1, new Value(price));

Yes it works.

Ali bey teşekkürler! :)