SelectedCellsChangedEventArgs.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / wpf / src / Framework / System / Windows / Controls / SelectedCellsChangedEventArgs.cs / 1305600 / SelectedCellsChangedEventArgs.cs
                        

                        
                            //---------------------------------------------------------------------------- 
//
// Copyright (C) Microsoft Corporation.  All rights reserved.
//
//--------------------------------------------------------------------------- 

using System; 
using System.Collections.Generic; 
using System.Collections.ObjectModel;
using System.Diagnostics; 

namespace System.Windows.Controls
{
    ///  
    ///     Communicates which cells were added or removed from the SelectedCells collection.
    ///  
    public class SelectedCellsChangedEventArgs : EventArgs 
    {
        ///  
        ///     Creates a new instance of this class.
        /// 
        /// The cells that were added. Must be non-null, but may be empty.
        /// The cells that were removed. Must be non-null, but may be empty. 
        public SelectedCellsChangedEventArgs(List addedCells, List removedCells)
        { 
            if (addedCells == null) 
            {
                throw new ArgumentNullException("addedCells"); 
            }

            if (removedCells == null)
            { 
                throw new ArgumentNullException("removedCells");
            } 
 
            _addedCells = addedCells.AsReadOnly();
            _removedCells = removedCells.AsReadOnly(); 
        }

        /// 
        ///     Creates a new instance of this class. 
        /// 
        /// The cells that were added. Must be non-null, but may be empty. 
        /// The cells that were removed. Must be non-null, but may be empty. 
        public SelectedCellsChangedEventArgs(ReadOnlyCollection addedCells, ReadOnlyCollection removedCells)
        { 
            if (addedCells == null)
            {
                throw new ArgumentNullException("addedCells");
            } 

            if (removedCells == null) 
            { 
                throw new ArgumentNullException("removedCells");
            } 

            _addedCells = addedCells;
            _removedCells = removedCells;
        } 

        internal SelectedCellsChangedEventArgs(DataGrid owner, VirtualizedCellInfoCollection addedCells, VirtualizedCellInfoCollection removedCells) 
        { 
            _addedCells = (addedCells != null) ? addedCells : VirtualizedCellInfoCollection.MakeEmptyCollection(owner);
            _removedCells = (removedCells != null) ? removedCells : VirtualizedCellInfoCollection.MakeEmptyCollection(owner); 

            Debug.Assert(_addedCells.IsReadOnly, "_addedCells should have ended up as read-only.");
            Debug.Assert(_removedCells.IsReadOnly, "_removedCells should have ended up as read-only.");
        } 

        ///  
        ///     The cells that were added. 
        /// 
        public IList AddedCells 
        {
            get { return _addedCells; }
        }
 
        /// 
        ///     The cells that were removed. 
        ///  
        public IList RemovedCells
        { 
            get { return _removedCells; }
        }

        private IList _addedCells; 
        private IList _removedCells;
    } 
} 

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

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