NumericUpDownAccelerationCollection.cs source code in C# .NET

                        Code:
                         / DotNET / DotNET / 8.0 / untmp / whidbey / REDBITS / ndp / fx / src / WinForms / Managed / System / WinForms / NumericUpDownAccelerationCollection.cs / 1 / NumericUpDownAccelerationCollection.cs
                        
                        
                            //------------------------------------------------------------------------------ 
// 
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// 
//----------------------------------------------------------------------------- 

namespace System.Windows.Forms 
{ 
    using System;
    using System.Diagnostics; 
    using System.Collections;
    using System.Collections.Generic;
    using System.ComponentModel;
 
    /// 
    ///     Represents a SORTED collection of NumericUpDownAcceleration objects in the NumericUpDown Control. 
    ///     The elements in the collection are sorted by the NumericUpDownAcceleration.Seconds property. 
    /// 
    [ListBindable(false)] 
    public class NumericUpDownAccelerationCollection : MarshalByRefObject, ICollection, IEnumerable
    {
        List items;
 

        /// ICollection implementation. 
 
        /// 
        ///     Adds an item (NumericUpDownAcceleration object) to the ICollection. 
        ///     The item is added preserving the collection sorted.
        /// 
        public void Add(NumericUpDownAcceleration acceleration)
        { 
            if( acceleration == null )
            { 
                throw new ArgumentNullException("acceleration"); 
            }
 
            // Keep the array sorted, insert in the right spot.
            int index = 0;

            while( index < this.items.Count ) 
            {
                if( acceleration.Seconds < this.items[index].Seconds ) 
                { 
                    break;
                } 
                index++;
            }
            this.items.Insert(index, acceleration);
        } 

        ///  
        ///     Removes all items from the ICollection. 
        /// 
       public void Clear() 
        {
            this.items.Clear();
        }
 
        /// 
        ///     Determines whether the IList contains a specific value. 
        ///  
         public bool Contains(NumericUpDownAcceleration acceleration)
        { 
            return this.items.Contains(acceleration);
        }

        ///  
        ///     Copies the elements of the ICollection to an Array, starting at a particular Array index.
        ///  
         public void CopyTo(NumericUpDownAcceleration[] array, int index) 
        {
            this.items.CopyTo(array, index); 
        }

        /// 
        ///     Gets the number of elements contained in the ICollection. 
        /// 
        public int Count 
        { 
            get {return this.items.Count;}
        } 

        /// 
        ///     Gets a value indicating whether the ICollection is read-only.
        ///     This collection property returns false always. 
        /// 
        public bool IsReadOnly 
        { 
            get {return false;}
        } 

        /// 
        ///     Removes the specified item from the ICollection.
        ///  
        public bool Remove(NumericUpDownAcceleration acceleration)
        { 
            return this.items.Remove(acceleration); 
        }
 
        /// IEnumerable implementation.


        ///  
        ///     Returns an enumerator that can iterate through the collection.
        ///  
        IEnumerator IEnumerable.GetEnumerator() 
        {
            return this.items.GetEnumerator(); 
        }

        System.Collections.IEnumerator System.Collections.IEnumerable.GetEnumerator()
        { 
            return ((IEnumerable)items).GetEnumerator();
        } 
 
        /// NumericUpDownAccelerationCollection methods.
 
        /// 
        ///     Class constructor.
        /// 
        public NumericUpDownAccelerationCollection() 
        {
            this.items = new List(); 
        } 

        ///  
        ///     Adds the elements of specified array to the collection, keeping the collection sorted.
        /// 
        public void AddRange(params NumericUpDownAcceleration[] accelerations)
        { 
            if (accelerations == null)
            { 
                throw new ArgumentNullException("accelerations"); 
            }
 
            // Accept the range only if ALL elements in the array are not null.
            foreach (NumericUpDownAcceleration acceleration in accelerations)
            {
                if (acceleration == null) 
                {
                    throw new ArgumentNullException(SR.GetString(SR.NumericUpDownAccelerationCollectionAtLeastOneEntryIsNull)); 
                } 
            }
 
            // The expected array size is typically small (5 items?), so we don't need to try to be smarter about the
            // way we add the elements to the collection, just call Add.
            foreach (NumericUpDownAcceleration acceleration in accelerations)
            { 
                this.Add(acceleration);
            } 
        } 

        ///  
        ///     Gets (ReadOnly) the element at the specified index. In C#, this property is the indexer for
        ///     the IList class.
        /// 
        public NumericUpDownAcceleration this[int index] 
        {
            get { return this.items[index]; } 
        } 
    }
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
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NumericUpDownAccelerationCollection.cs source code in C# .NET

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