protected override void Execute(TransactionItem item, IRuleExecuteContext context)
{
var dataItemDirection = item.AsPropertyChange <DataItem, ParameterCallDirection>(nameof(DataItem.CallDirection));
if (dataItemDirection.IsValid)
{
DataItem dataItem = dataItemDirection.TargetElement;
if (dataItemDirection.NewValue != ParameterCallDirection.None && dataItem.CallIndex == -1)
{
int callIndex = 0;
var function = (Function)dataItemDirection.TargetElement.Definition;
while (function.DataItems.Any(d => d.CallDirection != ParameterCallDirection.None && d.CallIndex == callIndex))
{
++callIndex;
}
dataItem.CallIndex = callIndex;
}
else if (dataItemDirection.NewValue == ParameterCallDirection.None)
{
dataItem.CallIndex = -1;
}
}
}