Esto tan solo es un ejemplo extraído de un programa que tengo en desarrollo. yo
use Nhibernate y gtk3
public class Country {
public virtual string Cod { get; set; } public virtual string Name {
get; set; } public virtual string DialPrefix { get; set; } public
virtual IList<State> States { get; set; }
public Country() { States = new List<State>(); }}
public class State {
public virtual string Cod { get; set; } public virtual Country Contry {
get; set; } public virtual string Name { get; set; } public virtual
string DialZone { get; set; } public virtual IList<City> Cities { get; set; }
public State() { Cities = new List<City>(); }
}
public class City : DomainObject<uint> {
public virtual State State { get; set; } public virtual string
Name { get; set; } public virtual string AreaCode { get; set; }}
public partial class Dialog : Gtk.Windows {
private Gtk.ComboBox ComboCountry, ComboState, ComboCity; private
Gtk.ListStore StoreCountry, StoreState, StoreCity;
public Dialog () : base ("Ejemplo") { var Grid0 = new
Gtk.Grid () { Visible = true, CanFocus =
false, RowSpacing = 6, ColumnSpacing = 6,
BorderWidth = 2 }; this.StoreCountry
= new Gtk.ListStore (typeof(Country)); this.StoreState = new
Gtk.ListStore (typeof(State)); this.StoreCity = new Gtk.ListStore
(typeof(City));
this.ComboCountry = new Gtk.ComboBox { Visible = true,CanFocus
= false,}; CellRendererText = new Gtk.CellRendererText {
Height = 22, SingleParagraphMode = true,
WrapWidth = 250, };
this.ComboCountry.PackStart (CellRendererText, false);
this.ComboCountry.SetCellDataFunc (CellRendererText, new Gtk.CellLayoutDataFunc
(OnGetCountry)); Grid0.Attach (this.ComboCountry, 0, 0, 1, 1);
this.ComboState = new Gtk.ComboBox { Visible = true,
CanFocus = false, };
CellRendererText = new Gtk.CellRendererText { Height = 22,
SingleParagraphMode = true, WrapWidth =
250, }; this.ComboState.PackStart
(CellRendererText, false); this.ComboState.SetCellDataFunc
(CellRendererText, new Gtk.CellLayoutDataFunc (OnGetState));
Grid0.Attach (this.ComboState, 0, 1, 1, 1); this.ComboCity = new
Gtk.ComboBox { Visible = true, CanFocus =
false, }; CellRendererText = new
Gtk.CellRendererText { Height = 22,
SingleParagraphMode = true, WrapWidth = 250,
}; this.ComboCity.PackStart (CellRendererText, false);
this.ComboCity.SetCellDataFunc (CellRendererText, new Gtk.CellLayoutDataFunc
(OnGetCity)); Grid0.Attach (this.ComboCity, 0, 2, 1, 1);
this.ContentArea.PackStart (Grid0, false,
false, 6); ShowAll ();
this.ComboState.Changed += delegate { Gtk.TreeIter iter;
if (this.ComboState.GetActiveIter (out iter)) {
var state = ((Sicpifc.Dao.Domain.State)this.StoreState.GetValue (iter,
0)); this.StoreCity.Clear ();
foreach (var item in state.Cities)
this.StoreCity.AppendValues (item);
this.ComboCity.Active = 0; QueueDraw ();
} };
this.ComboCountry.Changed += delegate { Gtk.TreeIter iter;
if (this.ComboCountry.GetActiveIter (out iter)) {
var countries =
((Sicpifc.Dao.Domain.Country)this.StoreCountry.GetValue (iter, 0));
this.StoreState.Clear (); foreach
(var item in countries.States)
this.StoreState.AppendValues (item);
this.ComboState.Active = 0; QueueDraw ();
} }; GetDatos ();
} internal void GetDatos () { //Nhibernate
var items = this.Session.QueryOver<Country> ().List (); foreach (var
item in items) this.StoreCountry.AppendValues (item);
this.ComboCountry.Active = 0; } protected void OnGetCountry
(Gtk.ICellLayout cell_layout, Gtk.CellRenderer cell, Gtk.ITreeModel tree_model,
Gtk.TreeIter iter) { var item = (Country)tree_model.GetValue (iter,
0); if (item != null) (cell as
Gtk.CellRendererText).Text = item.Name; }
protected void OnGetState (Gtk.ICellLayout cell_layout,
Gtk.CellRenderer cell, Gtk.ITreeModel tree_model, Gtk.TreeIter iter) {
var item = (State)tree_model.GetValue (iter, 0); if (item !=
null) (cell as Gtk.CellRendererText).Text = item.Name;
}
protected void OnGetCity (Gtk.ICellLayout cell_layout, Gtk.CellRenderer
cell, Gtk.ITreeModel tree_model, Gtk.TreeIter iter) { var item =
(City)tree_model.GetValue (iter, 0); if (item != null)
(cell as Gtk.CellRendererText).Text = item.Name; }
internal void SetCity (City city) { if (city == null)
return; SetContry
(city.State.Contry.Cod); SetState (city.State.Cod);
Gtk.TreeIter iter; if
(this.ComboCity.Model.GetIterFirst (out iter)) { do
{ var item =
(City)this.ComboCity.Model.GetValue (iter, 0);
if (item.Id == city.Id) {
this.ComboCity.SetActiveIter (iter);
break; } } while
(this.ComboCity.Model.IterNext (ref iter)); }
}
internal void SetContry (string codigo) {
Gtk.TreeIter iter; if
(this.ComboCountry.Model.GetIterFirst (out iter)) { do
{ var item =
(Country)this.ComboCountry.Model.GetValue (iter, 0);
if (item.Cod == codigo) {
this.ComboCountry.SetActiveIter (iter);
break; } } while
(this.ComboCountry.Model.IterNext (ref iter)); }
}
internal void SetState (string codigo) {
Gtk.TreeIter iter; if (this.ComboState.Model.GetIterFirst
(out iter)) { do {
var item = (Sicpifc.Dao.Domain.State)this.ComboState.Model.GetValue (iter, 0);
if (item.Cod == codigo) {
this.ComboState.SetActiveIter (iter);
break; }
} while (this.ComboState.Model.IterNext (ref iter));
} }
}
> Date: Fri, 20 Jun 2014 03:02:20 -0700
> From: hugaomrodrig...@gmail.com
> To: gtk-sharp-list@lists.ximian.com
> Subject: [Gtk-sharp-list] Combobox with values from databases
>
> Hi,
>
> I have a little question. When I used Visual Studio I fill the combo box
> using a Dataset with values from a database. Like this:
>
> DataSet ds = class_geral.mysql_dataset(sql, "s");
> comboBox_tipo_conta.DataSource = ds.Tables["s"];
> comboBox_tipo_conta.DisplayMember = "type_account";
> comboBox_tipo_conta.ValueMember = "type_account";
>
> But in Mono Develop, with Gtk# the options of DataSource, DisplayMember and
> ValueMember aren't available. Can anyone tell me how I fill the combo box
> with data from MariaDB?
>
> Thanks in advance,
> Hugo Rodrigues.
>
>
>
> --
> View this message in context:
> http://mono.1490590.n4.nabble.com/Combobox-with-values-from-databases-tp4663160.html
> Sent from the Mono - Gtk# mailing list archive at Nabble.com.
> _______________________________________________
> Gtk-sharp-list maillist - Gtk-sharp-list@lists.ximian.com
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