WebPartTransformerCollection.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 / WebPartTransformerCollection.cs / 1 / WebPartTransformerCollection.cs
                        

                        
                            //------------------------------------------------------------------------------ 
// 
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// 
//----------------------------------------------------------------------------- 
namespace System.Web.UI.WebControls.WebParts {
 
    using System; 
    using System.Collections;
    using System.Security.Permissions; 

    [AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)]
    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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