Code:
/ DotNET / DotNET / 8.0 / untmp / whidbey / REDBITS / ndp / fx / src / xsp / System / Web / UI / WebParts / WebPartTransformerCollection.cs / 1 / WebPartTransformerCollection.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Web.UI.WebControls.WebParts { using System; using System.Collections; using System.Security.Permissions; [AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)] public sealed class WebPartTransformerCollection : CollectionBase { private bool _readOnly; public bool IsReadOnly { get { return _readOnly; } } public WebPartTransformer this[int index] { get { return (WebPartTransformer) List[index]; } set { List[index] = value; } } public int Add(WebPartTransformer transformer) { return List.Add(transformer); } private void CheckReadOnly() { if (_readOnly) { throw new InvalidOperationException(SR.GetString(SR.WebPartTransformerCollection_ReadOnly)); } } public bool Contains(WebPartTransformer transformer) { return List.Contains(transformer); } public void CopyTo(WebPartTransformer[] array, int index) { List.CopyTo(array, index); } public int IndexOf(WebPartTransformer transformer) { return List.IndexOf(transformer); } public void Insert(int index, WebPartTransformer transformer) { List.Insert(index, transformer); } protected override void OnClear() { CheckReadOnly(); base.OnClear(); } protected override void OnInsert(int index, object value) { CheckReadOnly(); if (List.Count > 0) { throw new InvalidOperationException(SR.GetString(SR.WebPartTransformerCollection_NotEmpty)); } base.OnInsert(index, value); } protected override void OnRemove(int index, object value) { CheckReadOnly(); base.OnRemove(index, value); } protected override void OnSet(int index, object oldValue, object newValue) { CheckReadOnly(); base.OnSet(index, oldValue, newValue); } protected override void OnValidate(object value) { base.OnValidate(value); if (value == null) { throw new ArgumentNullException("value", SR.GetString(SR.Collection_CantAddNull)); } if (!(value is WebPartTransformer)) { throw new ArgumentException(SR.GetString(SR.Collection_InvalidType, "WebPartTransformer"), "value"); } } public void Remove(WebPartTransformer transformer) { List.Remove(transformer); } internal void SetReadOnly() { _readOnly = true; } } }
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