Source/Editors/IPAddressGroup.cs

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#if FRAMEWORK20
using System;
using System.Collections.Generic;
using System.Text;

namespace DevComponents.Editors
{
    public class IpAddressGroup : VisualInputGroup
    {
        #region Events
        public event EventHandler ValueChanged;
        #endregion

        #region Constructors
        /// <summary>
        /// Initializes a new instance of the IPAddressGroup class.
        /// </summary>
        public IpAddressGroup()
        {
            // Create IP4 default items
            for (int i = 0; i < 4; i++)
            {
                VisualIntegerInput input = new VisualIntegerInput();
                input.MaxValue = 255;
                input.MinValue = 0;
                this.Items.Add(input);
                if (i < 3)
                {
                    VisualLabel label = new VisualLabel();
                    label.Text = ".";
                    this.Items.Add(label);
                }
            }
        }
        #endregion

        #region Internal Implementation
        private string _Value;
        public string Value
        {
            get 
            {
                if (this.IsFocused)
                {
                    if (IsInputValid())
                        UpdateValue();
                }
                return _Value; 
            }
            set
            {
                bool valueChanged = _Value != value;
                if (!string.IsNullOrEmpty(value))
                {
                    if (!IsValueValid(value))
                        throw new ArgumentException("Value is not valid IP value");
                }
                _Value = value;
                UpdateInputItems();
                if(valueChanged)