internal override void CacheMetadata(ActivityMetadata metadata, Activity owner, string operationName)
{
MessagingActivityHelper.FixMessageArgument(this.Message, ArgumentDirection.In, metadata);
if (this.DeclaredMessageType != null)
{
if (this.Message == null && this.DeclaredMessageType != TypeHelper.VoidType)
{
string errorOperationName = ContractValidationHelper.GetErrorMessageOperationName(operationName);
metadata.AddValidationError(SR.ValueCannotBeNull(owner.DisplayName, errorOperationName));
}
else if (this.Message != null && !this.DeclaredMessageType.IsAssignableFrom(this.Message.ArgumentType))
{
string errorOperationName = ContractValidationHelper.GetErrorMessageOperationName(operationName);
metadata.AddValidationError(SR.ValueArgumentTypeNotDerivedFromValueType(owner.DisplayName, errorOperationName));
}
}
}
