Source/Editors/NumericInputBase.cs

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#if FRAMEWORK20
using System;
using System.ComponentModel;
using System.Text;
using System.Windows.Forms;
using System.Collections;
using DevComponents.DotNetBar;
using System.Drawing;

namespace DevComponents.Editors
{
    /// <summary>
    /// Represents an control that allows numeric input.
    /// </summary>
    [ToolboxItem(false), DefaultEvent("ValueChanged")]
    public abstract class NumericInputBase : VisualControlBase, ICommandSource
    {
        #region Private Variables
        private VisualInputGroup _InputGroup = null;
        private ButtonItem _PopupItem = null;
        private static string _DropDownControlContainerName = "sysPopupControlContainer";
        private static string _DropDownItemContainerName = "sysPopupItemContainer";
        #endregion

        #region Events
        /// <summary>
        /// Occurs when the Value or IsEmpty property changes.
        /// <remarks>
        /// This event is not raised when the entered date is earlier than MinDateTime or later than MaxDateTime.
        /// </remarks>
        /// </summary>
        public event EventHandler ValueChanged;
        /// <summary>
        /// Occurs when the Value or IsEmpty property changes. This event occurs at the same time and has same function as ValueChanged event. It is provided for binding support.
        /// </summary>
        public event EventHandler ValueObjectChanged;
        /// <summary>
        /// Occurs when Clear button is clicked and allows you to cancel the default action performed by the button.
        /// </summary>
        public event CancelEventHandler ButtonClearClick;
        /// <summary>
        /// Occurs when Drop-Down button that shows calendar is clicked and allows you to cancel showing of the popup.
        /// </summary>
        public event CancelEventHandler ButtonDropDownClick;

        /// <summary>
        /// Occurs when ShowCheckBox property is set to true and user changes the lock status of the control by clicking the check-box.
        /// </summary>
        public event EventHandler LockUpdateChanged;
        #endregion

        #region Constructor
        /// <summary>
        /// Initializes a new instance of the NumericInputBase class.
        /// </summary>
        public NumericInputBase()
            : base()
        {
            _ButtonClear = new InputButtonSettings(this);
            _ButtonDropDown = new InputButtonSettings(this);