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//------------------------------------------------------------------------------
// <copyright file="TransformerTypeCollection.cs" company="Microsoft">
// Copyright (c) Microsoft Corporation. All rights reserved.
// </copyright>
//------------------------------------------------------------------------------
namespace System.Web.UI.WebControls.WebParts {
using System;
using System.Collections;
using System.ComponentModel;
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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