Why C# keyword not recognized? [closed]

I try to use the outint feature from c# 7.
Here the code:
int.TryParse(part, outint number);

but under "outint number" I get a red line with an error:
outint does not exist in the current context

The target framework of the a…

Event when field changes [duplicate]

This question has been flagged as a duplicate, but the linked article does not solve the question i have asked. Here’s some clarification…
There is a class called PropertyInfo in the System.Reflection namespace that allows…