Code:
/ FX-1434 / FX-1434 / 1.0 / untmp / whidbey / REDBITS / ndp / fx / src / xsp / System / Web / UI / WebParts / WebPartCollection.cs / 1 / WebPartCollection.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Web.UI.WebControls.WebParts { using System; using System.Collections; using System.Diagnostics; using System.Globalization; using System.Security.Permissions; ////// Read-only collection of WebParts. Collection cannot be modified after contstruction. /// [AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)] public sealed class WebPartCollection : ReadOnlyCollectionBase { public WebPartCollection() { } public WebPartCollection(ICollection webParts) { if (webParts == null) { throw new ArgumentNullException("webParts"); } foreach (object obj in webParts) { if (obj == null) { throw new ArgumentException(SR.GetString(SR.Collection_CantAddNull), "webParts"); } if (!(obj is WebPart)) { throw new ArgumentException(SR.GetString(SR.Collection_InvalidType, "WebPart"), "webParts"); } InnerList.Add(obj); } } internal int Add(WebPart value) { Debug.Assert(value != null); return InnerList.Add(value); } public bool Contains(WebPart value) { return InnerList.Contains(value); } public int IndexOf(WebPart value) { return InnerList.IndexOf(value); } public WebPart this[int index] { get { return (WebPart) InnerList[index]; } } ////// Returns the WebPart with the specified id, or the GenericWebPart containing a control with /// the specified id, or the ProxyWebPart with OriginalID or GenericWebPartID equal to the /// specified id, performing a case-insensitive comparison. Returns null if there are no matches. /// public WebPart this[string id] { // PERF: Use a hashtable for lookup, instead of a linear search get { foreach (WebPart webPart in InnerList) { if (String.Equals(webPart.ID, id, StringComparison.OrdinalIgnoreCase)) { return webPart; } GenericWebPart genericWebPart = webPart as GenericWebPart; if (genericWebPart != null) { Control control = genericWebPart.ChildControl; if (control != null) { if (String.Equals(control.ID, id, StringComparison.OrdinalIgnoreCase)) { return genericWebPart; } } } ProxyWebPart proxyWebPart = webPart as ProxyWebPart; if (proxyWebPart != null) { if ((String.Equals(proxyWebPart.OriginalID, id, StringComparison.OrdinalIgnoreCase)) || (String.Equals(proxyWebPart.GenericWebPartID, id, StringComparison.OrdinalIgnoreCase))) { return proxyWebPart; } } } return null; } } ////// public void CopyTo(WebPart[] array, int index) { InnerList.CopyTo(array, index); } } }Copies contents from the collection to a specified array with a /// specified starting index. ///
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