Code:
/ DotNET / DotNET / 8.0 / untmp / whidbey / REDBITS / ndp / fx / src / WinForms / Managed / System / WinForms / TableLayoutStyleCollection.cs / 1 / TableLayoutStyleCollection.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Windows.Forms { using System; using System.Collections; using System.ComponentModel; using System.ComponentModel.Design.Serialization; using System.Diagnostics; using System.Drawing; using System.Drawing.Design; using System.Globalization; using System.Windows.Forms.Layout; using System.Reflection; ///[Editor("System.Windows.Forms.Design.StyleCollectionEditor, " + AssemblyRef.SystemDesign, typeof(UITypeEditor))] public abstract class TableLayoutStyleCollection : IList { private IArrangedElement _owner; private ArrayList _innerList = new ArrayList(); internal TableLayoutStyleCollection(IArrangedElement owner) { _owner = owner; } internal IArrangedElement Owner { get { return _owner; } } internal virtual string PropertyName { get { return null; } } /// /// int IList.Add(object style) { EnsureNotOwned((TableLayoutStyle)style); ((TableLayoutStyle)style).Owner = this.Owner; int index = _innerList.Add(style); PerformLayoutIfOwned(); return index; } /// /// public int Add(TableLayoutStyle style) { return ((IList)this).Add(style); } /// /// void IList.Insert(int index, object style) { EnsureNotOwned((TableLayoutStyle)style); ((TableLayoutStyle)style).Owner = this.Owner; _innerList.Insert(index, style); PerformLayoutIfOwned(); } /// /// object IList.this[int index] { get { return _innerList[index]; } set { TableLayoutStyle style = (TableLayoutStyle) value; EnsureNotOwned(style); style.Owner = this.Owner; _innerList[index] = style; PerformLayoutIfOwned(); } } /// /// public TableLayoutStyle this[int index] { get { return (TableLayoutStyle)((IList)this)[index]; } set { ((IList)this)[index] = value; } } /// /// void IList.Remove(object style) { ((TableLayoutStyle)style).Owner = null; _innerList.Remove(style); PerformLayoutIfOwned(); } /// public void Clear() { foreach(TableLayoutStyle style in _innerList) { style.Owner = null; } _innerList.Clear(); PerformLayoutIfOwned(); } /// public void RemoveAt(int index) { TableLayoutStyle style = (TableLayoutStyle) _innerList[index]; style.Owner = null; _innerList.RemoveAt(index); PerformLayoutIfOwned(); } // These methods just forward to _innerList. bool IList.Contains(object style) { return _innerList.Contains(style); } int IList.IndexOf(object style) { return _innerList.IndexOf(style); } // These properties / methods just forward to _innerList and are item-type agnostic. bool IList.IsFixedSize { get {return _innerList.IsFixedSize;} } bool IList.IsReadOnly { get {return _innerList.IsReadOnly;} } void ICollection.CopyTo(System.Array array, int startIndex) { _innerList.CopyTo(array, startIndex); } /// public int Count { get { return _innerList.Count; }} bool ICollection.IsSynchronized { get{ return _innerList.IsSynchronized; }} object ICollection.SyncRoot { get { return _innerList.SyncRoot; }} IEnumerator IEnumerable.GetEnumerator() { return _innerList.GetEnumerator(); } private void EnsureNotOwned(TableLayoutStyle style) { if(style.Owner != null) { throw new ArgumentException(SR.GetString(SR.OnlyOneControl, style.GetType().Name), "style"); } } internal void EnsureOwnership(IArrangedElement owner) { _owner = owner; for (int i = 0; i < Count; i++) { this[i].Owner = owner; } } private void PerformLayoutIfOwned() { if (this.Owner != null) { LayoutTransaction.DoLayout(this.Owner, this.Owner, PropertyName); } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
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