102 lines
3.0 KiB
C#
Executable File
102 lines
3.0 KiB
C#
Executable File
//
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// Copyright (C) 2010 Novell Inc. http://novell.com
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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using System;
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using System.Collections;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Reflection;
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using System.Windows.Markup;
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using System.Xaml.Schema;
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namespace System.Windows.Markup
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{
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[MarkupExtensionReturnType (typeof (Array))]
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[ContentProperty ("Items")]
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[System.Runtime.CompilerServices.TypeForwardedFrom (Consts.AssemblyPresentationFramework_3_5)]
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public class ArrayExtension : MarkupExtension
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{
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public ArrayExtension ()
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{
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items = new ArrayList ();
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}
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public ArrayExtension (Array elements)
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{
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if (elements == null)
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throw new ArgumentNullException ("elements");
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Type = elements.GetType ().GetElementType ();
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items = new ArrayList (elements);
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}
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public ArrayExtension (Type arrayType)
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{
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if (arrayType == null)
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throw new ArgumentNullException ("arrayType");
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Type = arrayType;
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items = new ArrayList ();
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}
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[ConstructorArgument ("arrayType")]
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public Type Type { get; set; }
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IList items;
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[DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
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public IList Items {
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get { return items; }
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}
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public void AddChild (Object value)
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{
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// null is allowed.
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Items.Add (value);
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}
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public void AddText (string text)
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{
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// null is allowed.
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Items.Add (text);
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}
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public override object ProvideValue (IServiceProvider serviceProvider)
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{
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if (Type == null)
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throw new InvalidOperationException ("Type property must be set before calling ProvideValue method");
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bool invalid = false;
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foreach (var item in Items) {
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if (item == null) {
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if (Type.IsValueType)
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invalid = true;
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}
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else if (!Type.IsAssignableFrom (item.GetType ()))
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invalid = true;
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if (invalid)
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throw new InvalidOperationException (String.Format ("Item in the array must be an instance of '{0}'", Type));
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}
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Array a = Array.CreateInstance (Type, Items.Count);
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Items.CopyTo (a, 0);
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return a;
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}
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}
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}
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