WebPartDescriptionCollection.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / FX-1434 / FX-1434 / 1.0 / untmp / whidbey / REDBITS / ndp / fx / src / xsp / System / Web / UI / WebParts / WebPartDescriptionCollection.cs / 1 / WebPartDescriptionCollection.cs
                        

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

namespace System.Web.UI.WebControls.WebParts { 
 
    using System;
    using System.Collections; 
    using System.Collections.Specialized;
    using System.ComponentModel;
    using System.Globalization;
    using System.Security.Permissions; 

    [AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)] 
    public sealed class WebPartDescriptionCollection : ReadOnlyCollectionBase { 

        private HybridDictionary _ids; 

        public WebPartDescriptionCollection() {
        }
 
        public WebPartDescriptionCollection(ICollection webPartDescriptions) {
            if (webPartDescriptions == null) { 
                throw new ArgumentNullException("webPartDescriptions"); 
            }
 
            _ids = new HybridDictionary(webPartDescriptions.Count, true /* caseInsensitive */);
            foreach (object obj in webPartDescriptions) {
                if (obj == null) {
                    throw new ArgumentException(SR.GetString(SR.Collection_CantAddNull), "webPartDescriptions"); 
                }
                WebPartDescription description = obj as WebPartDescription; 
                if (description == null) { 
                    throw new ArgumentException(SR.GetString(SR.Collection_InvalidType, "WebPartDescription"),
                                                "webPartDescriptions"); 
                }
                string id = description.ID;
                if (!_ids.Contains(id)) {
                    InnerList.Add(description); 
                    _ids.Add(id, description);
                } 
                else { 
                    throw new ArgumentException(SR.GetString(
                        SR.WebPart_Collection_DuplicateID, "WebPartDescription", id), "webPartDescriptions"); 
                }
            }
        }
 
        public bool Contains(WebPartDescription value) {
            return InnerList.Contains(value); 
        } 

        public int IndexOf(WebPartDescription value) { 
            return InnerList.IndexOf(value);
        }

        public WebPartDescription this[int index] { 
            get {
                return (WebPartDescription) InnerList[index]; 
            } 
        }
 
        public WebPartDescription this[string id] {
            get {
                return ((_ids != null) ? (WebPartDescription)_ids[id] : null);
            } 
        }
 
        public void CopyTo(WebPartDescription[] array, int index) { 
            InnerList.CopyTo(array, index);
        } 
    }
}

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