50 lines
2.1 KiB
C#
50 lines
2.1 KiB
C#
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#if !SILVERLIGHT
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using System;
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using System.Linq;
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using System.ComponentModel;
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namespace System.ComponentModel.DataAnnotations {
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internal class MetadataPropertyDescriptorWrapper : PropertyDescriptor {
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private PropertyDescriptor _descriptor;
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private bool _isReadOnly;
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public MetadataPropertyDescriptorWrapper(PropertyDescriptor descriptor, Attribute[] newAttributes)
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: base(descriptor, newAttributes) {
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_descriptor = descriptor;
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var readOnlyAttribute = newAttributes.OfType<ReadOnlyAttribute>().FirstOrDefault();
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_isReadOnly = (readOnlyAttribute != null ? readOnlyAttribute.IsReadOnly : false);
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}
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public override void AddValueChanged(object component, EventHandler handler) { _descriptor.AddValueChanged(component, handler); }
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public override bool CanResetValue(object component) { return _descriptor.CanResetValue(component); }
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public override Type ComponentType { get { return _descriptor.ComponentType; } }
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public override object GetValue(object component) { return _descriptor.GetValue(component); }
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public override bool IsReadOnly {
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get {
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// Dev10 Bug 594083
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// It's not enough to call the wrapped _descriptor because it does not know anything about
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// new attributes passed into the constructor of this class.
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return _isReadOnly || _descriptor.IsReadOnly;
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}
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}
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public override Type PropertyType { get { return _descriptor.PropertyType; } }
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public override void RemoveValueChanged(object component, EventHandler handler) { _descriptor.RemoveValueChanged(component, handler); }
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public override void ResetValue(object component) { _descriptor.ResetValue(component); }
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public override void SetValue(object component, object value) { _descriptor.SetValue(component, value); }
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public override bool ShouldSerializeValue(object component) { return _descriptor.ShouldSerializeValue(component); }
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public override bool SupportsChangeEvents { get { return _descriptor.SupportsChangeEvents; } }
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}
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}
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#endif
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