WebPartVerbCollection.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 / 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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