C# ComboBox.GetActiveIter方法代码示例

 public static object GetId(ComboBox comboBox)
 {
     TreeIter treeIter;
     comboBox.GetActiveIter (out treeIter);
     IList row = (IList)comboBox.Model.GetValue (treeIter, 0);
     return row [0];
 }

 public static object GetId(ComboBox comboBox)
 {
     TreeIter treeIter;
     comboBox.GetActiveIter (out treeIter);
     IList row = (IList)comboBox.Model.GetValue (treeIter, 0); //ILIST 0 por que es el unico elemento aunque dentro vallan las columnas
     return row [0];
 }

        public static string GetActiveString(ComboBox box)
        {
            TreeIter iter;
            if(!box.GetActiveIter(out iter))
                return null;

            return (string)box.Model.GetValue(iter, 0);
        }

		public static string GetActiveText(ComboBox cbox) 
		{
			if (cbox.Active < 0)
				return "";

			TreeIter iter;
			cbox.GetActiveIter (out iter);
			string cvalue = ((ListStore) cbox.Model).GetValue (iter, 0).ToString();
			return cvalue;
		}

        public ComboBoxHelper(ComboBox comboBox, IDbConnection dbConnection, string keyFieldName,
		                       string valueFieldName,string tableName,int initialId)
        {
            this.comboBox = comboBox;
            //this.initalId = initialId;

            CellRendererText cellRenderText1 = new CellRendererText();
            comboBox.PackStart(cellRenderText1,false);
            comboBox.AddAttribute(cellRenderText1,"text",0);//el ultimo parametro el 0 sirve para elegir la columna a visualizar

            CellRendererText cellRenderText = new CellRendererText();
            comboBox.PackStart(cellRenderText,false);
            comboBox.AddAttribute(cellRenderText,"text",1);//el ultimo parametro el 1 sirve para elegir la columna a visualizar

            listStore = new ListStore(typeof(int),typeof(string));

            TreeIter initialTreeIter;/* = listStore.AppendValues(0, "Sin asignar");*/
            IDbCommand dbCommand = dbConnection.CreateCommand();
            dbCommand.CommandText = string.Format(selectFormat, keyFieldName,valueFieldName,tableName);
            IDataReader dataReader = dbCommand.ExecuteReader();

            //Recorre el dataReader para insertar los valores en el comboBox
            while(dataReader.Read())
            {
                int id =(int) dataReader["id"];
                string nombre = (string)dataReader["nombre"];
                treeIter = listStore.AppendValues(id,nombre);
                if (id == initialId)
                    initialTreeIter = treeIter;
            }

            dataReader.Close();
            comboBox.Model = listStore;
            comboBox.SetActiveIter(initialTreeIter);

            comboBox.Changed += delegate {
                TreeIter treeIter;
                comboBox.GetActiveIter(out treeIter);
                int id = (int) listStore.GetValue(treeIter,0);

                Console.WriteLine("ID = "+ id);
            };
        }

		string GetActiveVar (ComboBox combo)
		{
			Gtk.TreeIter iter;
			if (!combo.GetActiveIter (out iter))
				return string.Empty;
				
			string var = (string) combo.Model.GetValue (iter, 0);
			if (String.Compare (var, "(None)") == 0)
				return String.Empty;
			else
				return var.Trim ();
		}

//.........这里部分代码省略.........
			var runtimeComboVBox = new VBox ();
			runtimeComboVBox.PackStart (runtimeCombo, true, false, 0);
			configurationCombosBox.PackStart (runtimeComboVBox, false, false, 0);
			AddWidget (configurationCombosBox);

			buttonBarBox = new Alignment (0.5f, 0.5f, 0, 0);
			buttonBarBox.LeftPadding = (uint) 7;
			buttonBarBox.Add (buttonBar);
			buttonBarBox.NoShowAll = true;
			AddWidget (buttonBarBox);
			AddSpace (24);

			statusArea = new StatusArea ();
			statusArea.ShowMessage (BrandingService.ApplicationName);

			var statusAreaAlign = new Alignment (0, 0, 1, 1);
			statusAreaAlign.Add (statusArea);
			contentBox.PackStart (statusAreaAlign, true, true, 0);
			AddSpace (24);

			statusAreaAlign.SizeAllocated += (object o, SizeAllocatedArgs args) => {
				Gtk.Widget toplevel = this.Toplevel;
				if (toplevel == null)
					return;

				int windowWidth = toplevel.Allocation.Width;
				int center = windowWidth / 2;
				int left = Math.Max (center - 300, args.Allocation.Left);
				int right = Math.Min (left + 600, args.Allocation.Right);
				uint left_padding = (uint) (left - args.Allocation.Left);
				uint right_padding = (uint) (args.Allocation.Right - right);

				if (left_padding != statusAreaAlign.LeftPadding || right_padding != statusAreaAlign.RightPadding)
					statusAreaAlign.SetPadding (0, 0, (uint) left_padding, (uint) right_padding);
			};

			matchEntry = new SearchEntry ();

			matchEntry.ForceFilterButtonVisible = true;
			matchEntry.Entry.FocusOutEvent += (o, e) => {
				if (SearchEntryLostFocus != null)
					SearchEntryLostFocus (o, e);
			};

			matchEntry.Ready = true;
			matchEntry.Visible = true;
			matchEntry.IsCheckMenu = true;
			matchEntry.WidthRequest = 240;
			if (!Platform.IsMac && !Platform.IsWindows)
				matchEntry.Entry.ModifyFont (Pango.FontDescription.FromString ("Sans 9")); // TODO: VV: "Segoe UI 9"
			matchEntry.RoundedShape = true;
			matchEntry.Entry.Changed += HandleSearchEntryChanged;
			matchEntry.Activated += HandleSearchEntryActivated;
			matchEntry.Entry.KeyPressEvent += HandleSearchEntryKeyPressed;
			SizeAllocated += (o, e) => {
				if (SearchEntryResized != null)
					SearchEntryResized (o, e);
			};

			contentBox.PackStart (matchEntry, false, false, 0);

			var align = new Gtk.Alignment (0, 0, 1f, 1f);
			align.Show ();
			align.TopPadding = (uint) 5;
			align.LeftPadding = (uint) 9;
			align.RightPadding = (uint) 18;
			align.BottomPadding = (uint) 10;
			align.Add (contentBox);

			Add (align);
			SetDefaultSizes (-1, 21);

			configurationCombo.Changed += (o, e) => {
				if (ConfigurationChanged != null)
					ConfigurationChanged (o, e);
			};
			runtimeCombo.Changed += (o, e) => {
				var ea = new HandledEventArgs ();
				if (RuntimeChanged != null)
					RuntimeChanged (o, ea);

				TreeIter it;
				if (runtimeCombo.GetActiveIter (out it)) {
					if (ea.Handled) {
						runtimeCombo.SetActiveIter (lastSelection);
						return;
					}
					lastSelection = it;
				}
			};

			button.Clicked += HandleStartButtonClicked;

			IdeApp.CommandService.ActiveWidgetChanged += (sender, e) => {
				lastCommandTarget = new WeakReference (e.OldActiveWidget);
			};

			this.ShowAll ();
			this.statusArea.statusIconBox.HideAll ();
		}

		List<TargetFramework> GetTargetFrameworks (ComboBox combo)
		{
			TreeIter iter;

			if (!combo.GetActiveIter (out iter))
				return new List<TargetFramework> ();

			return (List<TargetFramework>) combo.Model.GetValue (iter, 1);
		}

        public ProjectPropertyWidget(Project project)
        {
            this.project = project;

            Table mainTable = new Table(2,1,false);
            Table propertyTable = new Table(5,2,false);

            Label lblFN = new Label(System.IO.Path.GetFileName(project.ProjectName));
            lblFN.UseUnderline = false;
            lblFN.Selectable = true;
            lblFN.Xalign = 0;

            /*prjDir.LabelProp = this.project.RelativeAppFilePath;
            prjFullPath.LabelProp  = this.project.AbsolutProjectDir;*/

            Entry entr = new Entry(this.project.RelativeAppFilePath);
            entr.ModifyBg(StateType.Normal,this.Style.Background(StateType.Normal));
            entr.IsEditable = false;

            Entry entrFullPath = new Entry(this.project.AbsolutProjectDir);
            entrFullPath.IsEditable = false;

            Entry entrFacebookApi = new Entry(this.project.FacebookAppID);
            entrFacebookApi.Changed+= delegate(object sender, EventArgs e)
            {
                this.project.FacebookAppID = entrFacebookApi.Text;
            };

            Entry entrTitle = new Entry(this.project.AppFile.Title);
            entrTitle.Changed+= delegate(object sender, EventArgs e)
            {
                try{
                    this.project.AppFile.Title = entrTitle.Text;
                } catch (Exception ex){
                    Moscrif.IDE.Tool.Logger.Error(ex.Message);
                }
            };

            ComboBox cbType = new ComboBox();
            ListStore projectModel = new ListStore(typeof(string), typeof(string));
            CellRendererText textRenderer = new CellRendererText();
            cbType.PackStart(textRenderer, true);
            cbType.AddAttribute(textRenderer, "text", 0);
            cbType.Model= projectModel;
            TreeIter ti = new TreeIter();
            foreach(SettingValue ds in MainClass.Settings.ApplicationType){// MainClass.Settings.InstallLocations){
                if(ds.Value == this.project.ApplicationType){
                    ti = projectModel.AppendValues(ds.Display,ds.Value);
                    cbType.SetActiveIter(ti);
                } else  projectModel.AppendValues(ds.Display,ds.Value);
            }
            if(cbType.Active <0)
                cbType.Active =0;
            cbType.Changed+= delegate(object sender, EventArgs e) {
                TreeIter tiSelect = new TreeIter();
                cbType.GetActiveIter(out tiSelect);
                string text = cbType.Model.GetValue(tiSelect,1).ToString();
                project.ApplicationType =text;
            };

            AddControl(ref propertyTable,0,lblFN,"Project ");
            AddControl(ref propertyTable,1,entr,"Project App ");
            AddControl(ref propertyTable,2,entrFullPath,"Project Path ");
            AddControl(ref propertyTable,3,entrTitle,"Title ");
            AddControl(ref propertyTable,4,cbType,"Type ");
            AddControl(ref propertyTable,5,entrFacebookApi,"Facebook ID ");

            mainTable.Attach(propertyTable,0,1,0,1,AttachOptions.Expand|AttachOptions.Fill,AttachOptions.Fill,0,0);

            /*int rowCount = project.ConditoinsDefine.Count;
            Table conditionsTable = new Table((uint)(rowCount + 3),(uint)2,false);

            GenerateContent(ref conditionsTable, MainClass.Settings.Platform.Name, 1, MainClass.Settings.Platform,false);//tableSystem
            GenerateContent(ref conditionsTable, MainClass.Settings.Resolution.Name, 2,MainClass.Settings.Resolution,true); //project.Resolution);//tableSystem
            int i = 3;
            foreach (Condition cd in project.ConditoinsDefine) {
                GenerateContent(ref conditionsTable, cd.Name, i, cd,false);
                i++;
            }
            mainTable.Attach(conditionsTable,0,1,1,2,AttachOptions.Expand|AttachOptions.Fill,AttachOptions.Fill,0,0);
            */
            this.PackStart(mainTable,true,true,0);
            this.ShowAll();
        }