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diff --git a/mcs/class/Managed.Windows.Forms/System.Windows.Forms/DataGridViewColumnCollection.cs b/mcs/class/Managed.Windows.Forms/System.Windows.Forms/DataGridViewColumnCollection.cs
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+++ b/mcs/class/Managed.Windows.Forms/System.Windows.Forms/DataGridViewColumnCollection.cs
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+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to
+// permit persons to whom the Software is furnished to do so, subject to
+// the following conditions:
+// 
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+//
+// Copyright (c) 2005 Novell, Inc. (http://www.novell.com)
+//
+// Author:
+//	Pedro Martínez Juliá <pedromj@gmail.com>
+//
+
+
+#if NET_2_0
+
+using System.ComponentModel;
+using System.Collections;
+
+namespace System.Windows.Forms {
+
+	public class DataGridViewColumnCollection : BaseCollection, IList, ICollection, IEnumerable {
+
+		private DataGridView dataGridView;
+
+		public DataGridViewColumnCollection (DataGridView dataGridView) {
+			this.dataGridView = dataGridView;
+		}
+
+		public bool IsFixedSize {
+			get { return base.List.IsFixedSize; }
+		}
+
+		object IList.this [int index] {
+			get { return this[index]; }
+			set { throw new NotSupportedException(); }
+		}
+
+		public DataGridViewColumn this [int index] {
+			get { return (DataGridViewColumn) base.List[index]; }
+		}
+
+		public DataGridViewColumn this [string columnName] {
+			get {
+				foreach (DataGridViewColumn col in base.List) {
+					if (col.Name == columnName) {
+						return col;
+					}
+				}
+				return null;
+			}
+		}
+
+		public event CollectionChangeEventHandler CollectionChanged;
+
+		int IList.Add (object o) {
+			return Add(o as DataGridViewColumn);
+		}
+
+		public virtual int Add (DataGridViewColumn dataGridViewColumn) {
+			dataGridViewColumn.SetIndex(base.List.Count);
+			dataGridViewColumn.SetDataGridView(dataGridView);
+			int result = base.List.Add(dataGridViewColumn);
+			OnCollectionChanged(new CollectionChangeEventArgs(CollectionChangeAction.Add, dataGridViewColumn));
+			return result;
+		}
+
+		public virtual int Add (string columnName, string headerText) {
+			DataGridViewColumn col = new DataGridViewColumn();
+			col.Name = columnName;
+			col.HeaderText = headerText;
+			return Add(col);
+		}
+
+		public virtual void AddRange (params DataGridViewColumn[] dataGridViewColumns) {
+			foreach (DataGridViewColumn col in dataGridViewColumns) {
+				Add(col);
+			}
+		}
+
+		public virtual void Clear () {
+			base.List.Clear();
+		}
+
+		bool IList.Contains (object o) {
+			return Contains(o as DataGridViewColumn);
+		}
+
+		public virtual bool Contains (DataGridViewColumn dataGridViewColumn) {
+			return base.List.Contains(dataGridViewColumn);
+		}
+
+		public virtual bool Contains (string columnName) {
+			foreach (DataGridViewColumn col in base.List) {
+				if (col.Name == columnName) {
+					return true;
+				}
+			}
+			return false;
+		}
+
+		public void CopyTo (DataGridViewColumn[] array, int index) {
+			base.List.CopyTo(array, index);
+		}
+
+		public int GetColumnCount (DataGridViewElementStates includeFilter) {
+			return 0;
+		}
+
+		public int GetColumnsWidth (DataGridViewElementStates includeFilter) {
+			return 0;
+		}
+
+		public DataGridViewColumn GetFirstColumn (DataGridViewElementStates includeFilter) {
+			return null;
+		}
+
+		public DataGridViewColumn GetFirstColumn (DataGridViewElementStates includeFilter, DataGridViewElementStates excludeFilter) {
+			return null;
+		}
+
+		public DataGridViewColumn GetLastColumn (DataGridViewElementStates includeFilter, DataGridViewElementStates excludeFilter) {
+			return null;
+		}
+
+		public DataGridViewColumn GetNextColumn (DataGridViewColumn dataGridViewColumnStart, DataGridViewElementStates includeFilter, DataGridViewElementStates excludeFilter) {
+			return null;
+		}
+
+		public DataGridViewColumn GetPreviousColumn (DataGridViewColumn dataGridViewColumnStart, DataGridViewElementStates includeFilter, DataGridViewElementStates excludeFilter) {
+			return null;
+		}
+
+		int IList.IndexOf (object o) {
+			return IndexOf(o as DataGridViewColumn);
+		}
+
+		public int IndexOf (DataGridViewColumn dataGridViewColumn) {
+			return base.List.IndexOf(dataGridViewColumn);
+		}
+
+		void IList.Insert (int columnIndex, object o) {
+			Insert(columnIndex, o as DataGridViewColumn);
+		}
+
+		public virtual void Insert (int columnIndex, DataGridViewColumn dataGridViewColumn) {
+			dataGridViewColumn.SetIndex(columnIndex);
+			base.List.Insert(columnIndex, dataGridViewColumn);
+			OnCollectionChanged(new CollectionChangeEventArgs(CollectionChangeAction.Add, dataGridViewColumn));
+		}
+
+		void IList.Remove (object o) {
+			Remove(o as DataGridViewColumn);
+		}
+
+		public virtual void Remove (DataGridViewColumn dataGridViewColumn) {
+			base.List.Remove(dataGridViewColumn);
+			OnCollectionChanged(new CollectionChangeEventArgs(CollectionChangeAction.Remove, dataGridViewColumn));
+		}
+
+		public virtual void Remove (string columnName) {
+			foreach (DataGridViewColumn col in base.List) {
+				if (col.Name == columnName) {
+					Remove(col);
+					return;
+				}
+			}
+		}
+
+		public virtual void RemoveAt (int index) {
+			DataGridViewColumn col = this[index];
+			base.List.RemoveAt(index);
+			OnCollectionChanged(new CollectionChangeEventArgs(CollectionChangeAction.Add, col));
+		}
+
+		protected DataGridView DataGridView {
+			get { return dataGridView; }
+		}
+
+		protected virtual void OnCollectionChanged (CollectionChangeEventArgs e) {
+			if (CollectionChanged != null) {
+				CollectionChanged(this, e);
+			}
+		}
+
+		protected override ArrayList List {
+			get { return base.List; }
+		}
+
+		/************************/
+
+		internal ArrayList ColumnDisplayIndexSortedArrayList {
+			get {
+				ArrayList result = (ArrayList) base.List.Clone();
+				result.Sort(new ColumnDisplayIndexComparator());
+				return result;
+			}
+		}
+
+		private class ColumnDisplayIndexComparator : IComparer {
+
+			public int Compare (object o1, object o2) {
+				DataGridViewColumn col1 = (DataGridViewColumn) o1;
+				DataGridViewColumn col2 = (DataGridViewColumn) o2;
+				if (col1.DisplayIndex < col2.DisplayIndex) {
+					return -1;
+				}
+				else if (col1.DisplayIndex > col2.DisplayIndex) {
+					return 1;
+				}
+				else {
+					return 0;
+				}
+			}
+
+		}
+
+		/************************/
+
+
+	}
+
+}
+
+#endif