PageRanges.cs source code in C# .NET

                        Code:
                         / DotNET / DotNET / 8.0 / untmp / WIN_WINDOWS / lh_tools_devdiv_wpf / Windows / wcp / Framework / System / Windows / Controls / PageRanges.cs / 1 / PageRanges.cs
                        
                        
                            /*++ 

    Copyright (C) 2004 - 2005 Microsoft Corporation.
    All rights reserved.
 
    Module Name:
        PageRanges.cs 
 
    Abstract:
        This file contains the implementation of the PageRange class 
        and the PageRangeSelection enum for page range support in the
        dialog.

    Author: 
        [....] ([....]) 9-May-2005
 
--*/ 

using System; 
using System.Globalization;
using System.Windows;

namespace System.Windows.Controls 
{
    ///  
    /// Enumeration of values for page range options. 
    /// 
    public enum PageRangeSelection 
    {
        /// 
        /// All pages are printed.
        ///  
        AllPages,
        ///  
        /// A set of user defined pages are printed. 
        /// 
        UserPages 
    }

    /// 
    /// This class defines one single page range from 
    /// a start page to an end page.
    ///  
    public struct PageRange 
    {
        #region Constructors 

        /// 
        /// Constructs an instance of PageRange with one specified page.
        ///  
        /// 
        /// Single page of this page range. 
        ///  
        public
        PageRange( 
            int     page
            )
        {
            _pageFrom = page; 
            _pageTo = page;
        } 
 
        /// 
        /// Constructs an instance of PageRange with specified values. 
        /// 
        /// 
        /// Starting page of this range.
        ///  
        /// 
        /// Ending page of this range. 
        ///  
        public
        PageRange( 
            int     pageFrom,
            int     pageTo
            )
        { 
            _pageFrom = pageFrom;
            _pageTo = pageTo; 
        } 

        #endregion Constructors 

        #region Public properties

        ///  
        /// Gets or sets the start page of the page range.
        ///  
        public int PageFrom 
        {
            get 
            {
                return _pageFrom;
            }
            set 
            {
                _pageFrom = value; 
            } 
        }
 
        /// 
        /// Gets of sets the end page of the page range.
        /// 
        public int PageTo 
        {
            get 
            { 
                return _pageTo;
            } 
            set
            {
                _pageTo = value;
            } 
        }
 
        #endregion Public properties 

        #region Private data 

        private
        int         _pageFrom;
 
        private
        int         _pageTo; 
 
        #endregion Private data
 
        #region Override methods

        /// 
        /// Converts this PageRange structure to its string representation. 
        /// 
        ///  
        /// A string value containing the range. 
        /// 
        public 
        override
        string
        ToString(
            ) 
        {
            string rangeText; 
 
            if (_pageTo != _pageFrom)
            { 
                rangeText = String.Format(CultureInfo.InvariantCulture, SR.Get(SRID.PrintDialogPageRange), _pageFrom, _pageTo);
            }
            else
            { 
                rangeText = _pageFrom.ToString(CultureInfo.InvariantCulture);
            } 
 
            return rangeText;
        } 

        /// 
        /// Tests equality between this instance and the specified object.
        ///  
        /// 
        /// The object to compare this instance to. 
        ///  
        /// 
        /// True if obj is equal to this object, else false. 
        /// Returns false if obj is not of type PageRange.
        /// 
        public
        override 
        bool
        Equals( 
            object obj 
            )
        { 
            if (obj == null || obj.GetType() != typeof(PageRange))
            {
                return false;
            } 

            return Equals((PageRange) obj); 
        } 

        ///  
        ///     Tests equality between this instance and the specified page range.
        /// 
        /// 
        ///     The page range to compare this instance to. 
        /// 
        ///  
        ///     True if the page range is equal to this object, else false. 
        /// 
        public 
        bool
        Equals(
            PageRange pageRange
            ) 
        {
            return (pageRange.PageFrom == this.PageFrom) && (pageRange.PageTo == this.PageTo); 
        } 

        ///  
        /// Calculates a hash code for this PageRange.
        /// 
        /// 
        /// Returns an integer hashcode for this instance. 
        /// 
        public 
        override 
        int
        GetHashCode() 
        {
            return base.GetHashCode();
        }
 
        /// 
        /// Test for equality. 
        ///  
        public
        static 
        bool
        operator ==(
            PageRange pr1,
            PageRange pr2 
            )
        { 
            return pr1.Equals(pr2); 
        }
 
        /// 
        /// Test for inequality.
        /// 
        public 
        static
        bool 
        operator !=( 
            PageRange pr1,
            PageRange pr2 
            )
        {
            return !(pr1.Equals(pr2));
        } 

        #endregion Override methods 
    } 
}

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
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