Code:
/ DotNET / DotNET / 8.0 / untmp / whidbey / REDBITS / ndp / fx / src / xsp / System / Web / UI / WebParts / WebPartVerbCollection.cs / 1 / WebPartVerbCollection.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.Drawing.Design; using System.Security.Permissions; [AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)] public sealed class WebPartVerbCollection : ReadOnlyCollectionBase { private HybridDictionary _ids; public static readonly WebPartVerbCollection Empty = new WebPartVerbCollection(); public WebPartVerbCollection() { Initialize(null, null); } public WebPartVerbCollection(ICollection verbs) { Initialize(null, verbs); } public WebPartVerbCollection(WebPartVerbCollection existingVerbs, ICollection verbs) { Initialize(existingVerbs, verbs); } public WebPartVerb this[int index] { get { return (WebPartVerb) InnerList[index]; } } // Currently, the WebPartVerbCollection class allows verbs to be added with duplicate IDs. // Ideally, we would not allow this. However, since the WebPartChrome.GetWebParts() method // returns both the Part and Zone verbs, there is the potential to have multiple verbs // with the same ID. So this property must be internal, since we are guaranteed to never // call it on a collection with duplicate IDs. internal WebPartVerb this[string id] { get { return (WebPartVerb)_ids[id]; } } // Do not throw for duplicate IDs, since we call this method to add items // to the collection internally, and we need to allow duplicate IDs. internal int Add(WebPartVerb value) { return InnerList.Add(value); } public bool Contains(WebPartVerb value) { return InnerList.Contains(value); } public void CopyTo(WebPartVerb[] array, int index) { InnerList.CopyTo(array, index); } public int IndexOf(WebPartVerb value) { return InnerList.IndexOf(value); } private void Initialize(WebPartVerbCollection existingVerbs, ICollection verbs) { int count = ((existingVerbs != null) ? existingVerbs.Count : 0) + ((verbs != null) ? verbs.Count : 0); _ids = new HybridDictionary(count, /* caseInsensitive */ true); if (existingVerbs != null) { foreach (WebPartVerb existingVerb in existingVerbs) { // Don't need to check arg, since we know it is valid since it came // from a CatalogPartCollection. if (_ids.Contains(existingVerb.ID)) { throw new ArgumentException(SR.GetString( SR.WebPart_Collection_DuplicateID, "WebPartVerb", existingVerb.ID), "existingVerbs"); } _ids.Add(existingVerb.ID, existingVerb); InnerList.Add(existingVerb); } } if (verbs != null) { foreach (object obj in verbs) { if (obj == null) { throw new ArgumentException(SR.GetString(SR.Collection_CantAddNull), "verbs"); } WebPartVerb webPartVerb = obj as WebPartVerb; if (webPartVerb == null) { throw new ArgumentException(SR.GetString(SR.Collection_InvalidType, "WebPartVerb"), "verbs"); } if (_ids.Contains(webPartVerb.ID)) { throw new ArgumentException(SR.GetString( SR.WebPart_Collection_DuplicateID, "WebPartVerb", webPartVerb.ID), "verbs"); } _ids.Add(webPartVerb.ID, webPartVerb); InnerList.Add(webPartVerb); } } } } }
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