TransformerTypeCollection.cs source code in C# .NET

Source code for the .NET framework in C#

                        
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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