implementing GetEnumerator() in a class

how do i implement this?

o tryed the following:

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PHP Code:

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    public class devTab : TabPage, System.Collections.IEnumerator 


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code

PHP Code:

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        private int _enumerator = 0;

        public bool MoveNext()
        {
            if (this.Items.Count == _enumerator)
            {
                return false;
            }
            else
            {
                _enumerator++;
                return true;
            }
        }

        public void Reset()
        {
            _enumerator = 0;
        }

        public object Current
        {
            get
            {
                return this.Items[_enumerator];
            }
        } 


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(this has more code but it doesnt matter here i think)

but it keeps saying that i cannot make a foreach statement because the class doesnt implement the getenumerator

You have to implement the IEnumerable interface also. Here this might help you out.
http://www.c-sharpcorner.com/code/20...InnerClass.asp

hmm sorry i took too long but i am having problems with this..i can't understand good the example :eek: anyone has another example of this?

dont bother making one just for this, if u have one show me up plz, otherwise just forget it lol

:)

I wrote this one then took a look at the link previously posted, and essentially it's the same thing, maybe a little clearer.

PHP Code:

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using System;
using System.Collections;
namespace EnumerationExample
{
    public class MainApp
    {
        public static void Main(string[] args)
        {
            
            Widgets widgets = new Widgets();
            widgets.Add("Chris");
            widgets.Add("Sally");
            //show the foreach support
            Console.WriteLine("Iterating collection using 'foreach'");
            foreach(Widget widget in widgets)
            {
                Console.WriteLine(widget.Name);
            }
            //show GetEnumerator support
            Console.WriteLine("Iterating collection using 'GetEnumerator()'");
            IEnumerator myWidgetEnumerator = widgets.GetEnumerator();
            while (myWidgetEnumerator.MoveNext())
            {
                Console.WriteLine(((Widget)myWidgetEnumerator.Current).Name);
            }
            Console.WriteLine("Press <Enter> to exit ...");
            Console.ReadLine();
        }    
    }

    public class Widget
    {
        private string name;
        public string Name
        {
            get { return this.name; }
            set { this.name = value; }
        }
        public Widget(string Name)
        {
            this.name = Name;
        }
        public Widget(){}
    }

    public class Widgets : IEnumerable
    {
        private ArrayList widgets = new ArrayList();
        public IEnumerator GetEnumerator()
        {
            return new WidgetEnumerator(widgets);
        }
        protected class WidgetEnumerator : IEnumerator
        {
            private ArrayList widgets;
            private int index;
            public WidgetEnumerator(ArrayList widgets)
            {
                this.widgets = widgets;
                this.Reset();
            }
            public void Reset()
            {
                this.index = -1;
            }
            public bool MoveNext()
            {
                return (++index < widgets.Count);
            }
            public object Current
            {
                get
                {
                    if ( (index < 0) || (index >= widgets.Count))
                        throw new IndexOutOfRangeException();
                    return widgets[index];
                }
            }
        }
        public void Add(Widget w)
        {
            this.widgets.Add(w);
        }
        public void Add(string widgetName)
        {
            Widget w = new Widget(widgetName);
            this.widgets.Add(w);
        }
    }
} 


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tks now did it :D