public override ValidationErrorCollection Validate(ValidationManager manager, object obj)
{
ValidationErrorCollection validationErrors = base.Validate(manager, obj);
InvokeWorkflowActivity invokeWorkflow = obj as InvokeWorkflowActivity;
if (invokeWorkflow == null)
throw new ArgumentException(SR.GetString(SR.Error_UnexpectedArgumentType, typeof(InvokeWorkflowActivity).FullName), "obj");
if (invokeWorkflow.TargetWorkflow == null)
{
ValidationError error = new ValidationError(SR.GetString(SR.Error_TypePropertyInvalid, "TargetWorkflow"), ErrorNumbers.Error_PropertyNotSet);
error.PropertyName = "TargetWorkflow";
validationErrors.Add(error);
}
else
{
ITypeProvider typeProvider = (ITypeProvider)manager.GetService(typeof(ITypeProvider));
if (typeProvider == null)
throw new InvalidOperationException(SR.GetString(SR.General_MissingService, typeof(ITypeProvider).FullName));
Type targetWorkflowType = invokeWorkflow.TargetWorkflow;
if (targetWorkflowType.Assembly == null && typeProvider.LocalAssembly != null)
{
Type workflowType = typeProvider.LocalAssembly.GetType(targetWorkflowType.FullName);
if (workflowType != null)
targetWorkflowType = workflowType;
}
if (!TypeProvider.IsAssignable(typeof(Activity), targetWorkflowType))
{
ValidationError error = new ValidationError(SR.GetString(SR.Error_TypeIsNotRootActivity, "TargetWorkflow"), ErrorNumbers.Error_TypeIsNotRootActivity);
error.PropertyName = "TargetWorkflow";
validationErrors.Add(error);
}
else
{
Activity rootActivity = null;
try
{
rootActivity = Activator.CreateInstance(targetWorkflowType) as Activity;
}
catch (Exception)
{
//
}
if (rootActivity == null)
{
ValidationError error = new ValidationError(SR.GetString(SR.Error_GetCalleeWorkflow, invokeWorkflow.TargetWorkflow), ErrorNumbers.Error_GetCalleeWorkflow);
error.PropertyName = "TargetWorkflow";
validationErrors.Add(error);
}
else
{
// Exec can't have activate receive.
Walker walker = new Walker();
walker.FoundActivity += delegate(Walker w, WalkerEventArgs args)
{
if ((args.CurrentActivity is WebServiceInputActivity && ((WebServiceInputActivity)args.CurrentActivity).IsActivating))
{
ValidationError validationError = new ValidationError(SR.GetString(SR.Error_ExecWithActivationReceive), ErrorNumbers.Error_ExecWithActivationReceive);
validationError.PropertyName = "Name";
validationErrors.Add(validationError);
args.Action = WalkerAction.Abort;
}
};
walker.Walk((Activity)rootActivity);
bool inAtomicScope = false;
Activity parentScope = invokeWorkflow.Parent;
while (parentScope != null)
{
if (parentScope is CompensatableTransactionScopeActivity || parentScope is TransactionScopeActivity)
{
inAtomicScope = true;
break;
}
parentScope = parentScope.Parent;
}
// Validate that if the workflow is transactional or being exec'd then it is not enclosed in an atomic scope.
if (inAtomicScope)
{
ValidationError validationError = new ValidationError(SR.GetString(SR.Error_ExecInAtomicScope), ErrorNumbers.Error_ExecInAtomicScope);
validationErrors.Add(validationError);
}
foreach (WorkflowParameterBinding paramBinding in invokeWorkflow.ParameterBindings)
{
PropertyInfo propertyInfo = null;
propertyInfo = targetWorkflowType.GetProperty(paramBinding.ParameterName);
if (propertyInfo == null)
{
ValidationError validationError = new ValidationError(SR.GetString(SR.Error_ParameterNotFound, paramBinding.ParameterName), ErrorNumbers.Error_ParameterNotFound);
if (InvokeWorkflowActivity.ReservedParameterNames.Contains(paramBinding.ParameterName))
validationError.PropertyName = ParameterInfoBasedPropertyDescriptor.GetParameterPropertyName(invokeWorkflow.GetType(), paramBinding.ParameterName);
validationErrors.Add(validationError);
continue;
}
Type parameterType = propertyInfo.PropertyType;
if (paramBinding.GetBinding(WorkflowParameterBinding.ValueProperty) != null)
{
ValidationErrorCollection memberErrors = ValidationHelpers.ValidateProperty(manager, invokeWorkflow, paramBinding.GetBinding(WorkflowParameterBinding.ValueProperty), new PropertyValidationContext(paramBinding, null, paramBinding.ParameterName), new BindValidationContext(parameterType, AccessTypes.Read));
if (memberErrors.Count != 0)
{
validationErrors.AddRange(memberErrors);
continue;
}
}
}
}
}
}
return validationErrors;
}
}
