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//-----------------------------------------------------------------------------
// Copyright (c) Microsoft Corporation. All rights reserved.
//-----------------------------------------------------------------------------
namespace System.Activities.Statements
{
using System.Activities;
using System.Collections.ObjectModel;
using System.ComponentModel;
using System.Runtime;
public sealed class Assign : CodeActivity
{
public Assign()
: base()
{
}
[RequiredArgument]
[DefaultValue(null)]
public OutArgument To
{
get;
set;
}
[RequiredArgument]
[DefaultValue(null)]
public InArgument Value
{
get;
set;
}
protected override void CacheMetadata(CodeActivityMetadata metadata)
{
Collection<RuntimeArgument> arguments = new Collection<RuntimeArgument>();
Type valueType = TypeHelper.ObjectType;
if (this.Value != null)
{
valueType = this.Value.ArgumentType;
}
RuntimeArgument valueArgument = new RuntimeArgument("Value", valueType, ArgumentDirection.In, true);
metadata.Bind(this.Value, valueArgument);
Type toType = TypeHelper.ObjectType;
if (this.To != null)
{
toType = this.To.ArgumentType;
}
RuntimeArgument toArgument = new RuntimeArgument("To", toType, ArgumentDirection.Out, true);
metadata.Bind(this.To, toArgument);
arguments.Add(valueArgument);
arguments.Add(toArgument);
metadata.SetArgumentsCollection(arguments);
if (this.Value != null && this.To != null)
{
if (!TypeHelper.AreTypesCompatible(this.Value.ArgumentType, this.To.ArgumentType))
{
metadata.AddValidationError(SR.TypeMismatchForAssign(
this.Value.ArgumentType,
this.To.ArgumentType,
this.DisplayName));
}
}
}
protected override void Execute(CodeActivityContext context)
{
this.To.Set(context, this.Value.Get(context));
}
}
public sealed class Assign<T> : CodeActivity
{
public Assign()
: base()
{
}
[RequiredArgument]
[DefaultValue(null)]
public OutArgument<T> To
{
get;
set;
}
[RequiredArgument]
[DefaultValue(null)]
public InArgument<T> Value
{
get;
set;
}
protected override void CacheMetadata(CodeActivityMetadata metadata)
{
Collection<RuntimeArgument> arguments = new Collection<RuntimeArgument>();
RuntimeArgument valueArgument = new RuntimeArgument("Value", typeof(T), ArgumentDirection.In, true);
metadata.Bind(this.Value, valueArgument);
RuntimeArgument toArgument = new RuntimeArgument("To", typeof(T), ArgumentDirection.Out, true);
metadata.Bind(this.To, toArgument);
arguments.Add(valueArgument);
arguments.Add(toArgument);
metadata.SetArgumentsCollection(arguments);
}
protected override void Execute(CodeActivityContext context)
{
context.SetValue(this.To, this.Value.Get(context));
}
}
}
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