/// <summary>
/// Подготовка к чтению IO.
/// </summary>
private void PrepareForReading()
{
var project = ApiHelper.GetProject();
var objectsFinder = new DMObjectsFinder(project);
var functionsFilter = new FunctionsFilter();
var properties = new FunctionPropertyList();
properties.FUNC_MAINFUNCTION = true;
functionsFilter.SetFilteredPropertyList(properties);
functionsFilter.Category = Function.Enums.Category.PLCBox;
functionsForSearching = objectsFinder.GetFunctions(functionsFilter)
.ToList();
functionsForSearching.Sort(CompareFunctions);
IOManager.Clear();
isContainsNodes = false;
isContainsA1 = CheckA1();
}