62 lines
2.0 KiB
C#
62 lines
2.0 KiB
C#
//-----------------------------------------------------------------------------
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// Copyright (c) Microsoft Corporation. All rights reserved.
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//-----------------------------------------------------------------------------
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namespace System.Activities.Expressions
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{
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using System.Linq.Expressions;
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using System.Runtime;
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using System.Windows.Markup;
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[ContentProperty("DelegateArgument")]
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public sealed class DelegateArgumentValue<T> : EnvironmentLocationValue<T>
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{
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public DelegateArgumentValue()
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: base()
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{
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}
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public DelegateArgumentValue(DelegateArgument delegateArgument)
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: this()
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{
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this.DelegateArgument = delegateArgument;
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}
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public DelegateArgument DelegateArgument
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{
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get;
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set;
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}
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public override LocationReference LocationReference
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{
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get { return this.DelegateArgument; }
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}
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protected override void CacheMetadata(CodeActivityMetadata metadata)
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{
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if (this.DelegateArgument == null)
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{
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metadata.AddValidationError(SR.DelegateArgumentMustBeSet);
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}
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else
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{
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if (!this.DelegateArgument.IsInTree)
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{
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metadata.AddValidationError(SR.DelegateArgumentMustBeReferenced(this.DelegateArgument.Name));
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}
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if (!metadata.Environment.IsVisible(this.DelegateArgument))
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{
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metadata.AddValidationError(SR.DelegateArgumentNotVisible(this.DelegateArgument.Name));
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}
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if (!(this.DelegateArgument is DelegateInArgument<T>) && !TypeHelper.AreTypesCompatible(this.DelegateArgument.Type, typeof(T)))
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{
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metadata.AddValidationError(SR.DelegateArgumentTypeInvalid(this.DelegateArgument, typeof(T), this.DelegateArgument.Type));
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}
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}
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}
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}
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}
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