Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / wpf / src / Framework / System / Windows / Markup / Baml2006 / WpfMemberInvoker.cs / 1305600 / WpfMemberInvoker.cs
using System; using System.Collections.Generic; using System.Text; using System.Xaml.Schema; using System.Reflection; namespace System.Windows.Baml2006 { internal class WpfMemberInvoker : XamlMemberInvoker { WpfXamlMember _member; bool _hasShouldSerializeMethodBeenLookedup = false; MethodInfo _shouldSerializeMethod = null; public WpfMemberInvoker(WpfXamlMember member) : base(member) { _member = member; } public override void SetValue(object instance, object value) { DependencyObject dObject = instance as DependencyObject; if (dObject != null) { if (_member.DependencyProperty != null) { dObject.SetValue(_member.DependencyProperty, value); return; } else if (_member.RoutedEvent != null) { Delegate handler = value as Delegate; if (handler != null) { UIElement.AddHandler(dObject, _member.RoutedEvent, handler); return; } } } base.SetValue(instance, value); } public override object GetValue(object instance) { DependencyObject dObject = instance as DependencyObject; if (dObject != null && _member.DependencyProperty != null) { object result = dObject.GetValue(_member.DependencyProperty); if (result != null) { return result; } // Getter fallback: see comment on WpfXamlMember.AsContentProperty if (!_member.ApplyGetterFallback || _member.UnderlyingMember == null) { return result; } } return base.GetValue(instance); } public override ShouldSerializeResult ShouldSerializeValue(object instance) { // Look up the ShouldSerializeMethod if (!_hasShouldSerializeMethodBeenLookedup) { Type declaringType = _member.UnderlyingMember.DeclaringType; string methodName = "ShouldSerialize" + _member.Name; BindingFlags flags = BindingFlags.NonPublic | BindingFlags.Public | BindingFlags.Static; Type[] args = new Type[] { typeof(DependencyObject) }; ; if (_member.IsAttachable) { _shouldSerializeMethod = declaringType.GetMethod(methodName, flags, null, args, null); } else { flags |= BindingFlags.Instance; _shouldSerializeMethod = declaringType.GetMethod(methodName, flags, null, args, null); } _hasShouldSerializeMethodBeenLookedup = true; } // Invoke the method if we found one if (_shouldSerializeMethod != null) { bool result; var args = new object[] { instance as DependencyObject }; if (_member.IsAttachable) { result = (bool)_shouldSerializeMethod.Invoke(null, args); } else { result = (bool)_shouldSerializeMethod.Invoke(instance, args); } return result ? ShouldSerializeResult.True : ShouldSerializeResult.False; } DependencyObject dObject = instance as DependencyObject; if (dObject != null && _member.DependencyProperty != null) { // Call DO's ShouldSerializeProperty to see if the property is set. // If the property is unset, the property should not be serialized bool isPropertySet = dObject.ShouldSerializeProperty(_member.DependencyProperty); if (!isPropertySet) { return ShouldSerializeResult.False; } } return base.ShouldSerializeValue(instance); } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
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