Code:
/ DotNET / DotNET / 8.0 / untmp / whidbey / REDBITS / ndp / fx / src / xsp / System / Web / UI / WebParts / TransformerTypeCollection.cs / 1 / TransformerTypeCollection.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Web.UI.WebControls.WebParts { using System; using System.Collections; using System.ComponentModel; using System.Security.Permissions; [AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)] public sealed class TransformerTypeCollection : ReadOnlyCollectionBase { public static readonly TransformerTypeCollection Empty = new TransformerTypeCollection(); public TransformerTypeCollection() { } public TransformerTypeCollection(ICollection transformerTypes) { Initialize(null, transformerTypes); } public TransformerTypeCollection(TransformerTypeCollection existingTransformerTypes, ICollection transformerTypes) { Initialize(existingTransformerTypes, transformerTypes); } internal int Add(Type value) { if (!value.IsSubclassOf(typeof(WebPartTransformer))) { throw new InvalidOperationException(SR.GetString(SR.WebPartTransformerAttribute_NotTransformer, value.Name)); } return InnerList.Add(value); } private void Initialize(TransformerTypeCollection existingTransformerTypes, ICollection transformerTypes) { if (existingTransformerTypes != null) { foreach (Type existingTransformerType in existingTransformerTypes) { // Don't need to check arg, since we know it is valid since it came // from a TransformerTypeCollection. InnerList.Add(existingTransformerType); } } if (transformerTypes != null) { foreach (object obj in transformerTypes) { if (obj == null) { throw new ArgumentException(SR.GetString(SR.Collection_CantAddNull), "transformerTypes"); } if (!(obj is Type)) { throw new ArgumentException(SR.GetString(SR.Collection_InvalidType, "Type"), "transformerTypes"); } if (!((Type)obj).IsSubclassOf(typeof(WebPartTransformer))) { throw new ArgumentException(SR.GetString(SR.WebPartTransformerAttribute_NotTransformer, ((Type)obj).Name), "transformerTypes"); } InnerList.Add(obj); } } } public bool Contains(Type value) { return InnerList.Contains(value); } public int IndexOf(Type value) { return InnerList.IndexOf(value); } public Type this[int index] { get { return (Type)InnerList[index]; } } public void CopyTo(Type[] array, int index) { InnerList.CopyTo(array, index); } } }
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