File: SelectList.cs

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/* ****************************************************************************
 *
 * Copyright (c) Microsoft Corporation. All rights reserved.
 *
 * This software is subject to the Microsoft Public License (Ms-PL). 
 * A copy of the license can be found in the license.htm file included 
 * in this distribution.
 *
 * You must not remove this notice, or any other, from this software.
 *
 * ***************************************************************************/

namespace System.Web.Mvc {
    using System.Collections;
    using System.Diagnostics.CodeAnalysis;    

    [SuppressMessage("Microsoft.Naming", "CA1710:IdentifiersShouldHaveCorrectSuffix")]
    public class SelectList : MultiSelectList {

        public SelectList(IEnumerable items)
            : this(items, null /* selectedValue */) {
        }

        public SelectList(IEnumerable items, object selectedValue)
            : this(items, null /* dataValuefield */, null /* dataTextField */, selectedValue) {
        }

        public SelectList(IEnumerable items, string dataValueField, string dataTextField)
            : this(items, dataValueField, dataTextField, null /* selectedValue */) {
        }

        public SelectList(IEnumerable items, string dataValueField, string dataTextField, object selectedValue)
            : base(items, dataValueField, dataTextField, ToEnumerable(selectedValue)) {
            SelectedValue = selectedValue;
        }

        public object SelectedValue {
            get;
            private set;
        }

        private static IEnumerable ToEnumerable(object selectedValue) {
            return (selectedValue != null) ? new object[] { selectedValue } : null;
        }
    }
}