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// ListSourceNotifyWrapper.cs
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// Eric Maupin <ermau@xamarin.com>
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// Copyright (c) 2012 Xamarin, Inc.
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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using System.Collections;
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using System.Collections.Specialized;
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namespace Xwt.WPFBackend
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internal class ListSourceNotifyWrapper
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: IEnumerable, INotifyCollectionChanged
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public ListSourceNotifyWrapper (IListDataSource source)
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throw new ArgumentNullException ("source");
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this.source.RowInserted += OnRowsUpdated;
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this.source.RowChanged += OnRowsUpdated;
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this.source.RowsReordered += OnRowsUpdated;
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this.source.RowDeleted += OnRowsUpdated;
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public event NotifyCollectionChangedEventHandler CollectionChanged;
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public IEnumerator GetEnumerator ()
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int cols = this.source.ColumnTypes.Length;
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for (int i = 0; i < this.source.RowCount; ++i) {
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object[] row = new object[cols];
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for (int c = 0; c < row.Length; ++c)
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row [c] = this.source.GetValue (i, c);
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private readonly IListDataSource source;
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private void OnRowsUpdated (object sender, ListRowEventArgs e)
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OnCollectionChanged (new NotifyCollectionChangedEventArgs (NotifyCollectionChangedAction.Reset));
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private void OnCollectionChanged (NotifyCollectionChangedEventArgs e)
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var changed = this.CollectionChanged;
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