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//------------------------------------------------------------------------------
// <copyright file="WebPartTransformerCollection.cs" company="Microsoft">
// Copyright (c) Microsoft Corporation. All rights reserved.
// </copyright>
//------------------------------------------------------------------------------
namespace System.Web.UI.WebControls.WebParts {
using System;
using System.Collections;
public sealed class WebPartTransformerCollection : CollectionBase {
private bool _readOnly;
public bool IsReadOnly {
get {
return _readOnly;
}
}
public WebPartTransformer this[int index] {
get {
return (WebPartTransformer) List[index];
}
set {
List[index] = value;
}
}
public int Add(WebPartTransformer transformer) {
return List.Add(transformer);
}
private void CheckReadOnly() {
if (_readOnly) {
throw new InvalidOperationException(SR.GetString(SR.WebPartTransformerCollection_ReadOnly));
}
}
public bool Contains(WebPartTransformer transformer) {
return List.Contains(transformer);
}
public void CopyTo(WebPartTransformer[] array, int index) {
List.CopyTo(array, index);
}
public int IndexOf(WebPartTransformer transformer) {
return List.IndexOf(transformer);
}
public void Insert(int index, WebPartTransformer transformer) {
List.Insert(index, transformer);
}
protected override void OnClear() {
CheckReadOnly();
base.OnClear();
}
protected override void OnInsert(int index, object value) {
CheckReadOnly();
if (List.Count > 0) {
throw new InvalidOperationException(SR.GetString(SR.WebPartTransformerCollection_NotEmpty));
}
base.OnInsert(index, value);
}
protected override void OnRemove(int index, object value) {
CheckReadOnly();
base.OnRemove(index, value);
}
protected override void OnSet(int index, object oldValue, object newValue) {
CheckReadOnly();
base.OnSet(index, oldValue, newValue);
}
protected override void OnValidate(object value) {
base.OnValidate(value);
if (value == null) {
throw new ArgumentNullException("value", SR.GetString(SR.Collection_CantAddNull));
}
if (!(value is WebPartTransformer)) {
throw new ArgumentException(SR.GetString(SR.Collection_InvalidType, "WebPartTransformer"), "value");
}
}
public void Remove(WebPartTransformer transformer) {
List.Remove(transformer);
}
internal void SetReadOnly() {
_readOnly = true;
}
}
}
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