I have this bit of relevant code:
if (boardMap[i,j] != null) {
Console.Write(boardMap[i,j].color.ToString() + " " + boardMap[i,j].type.ToString());
}
else {
Console.Write("X");
}
boardMap
contains potentially null values, which is why I implemented the if
statement checking if the boardMap[i,j]
item is null. However, I get a warning in line 2 telling me that boardMap[i,j]
is possibly null.
How do I fix this -> What is the correct way to do null checks like this?
(Please note, I am very much a beginner with dotnet and C#)
>Solution :
As of C# 8.0 and later, you can use the null-forgiving operator. Just append ! after whatever might be null. It basically tells the compiler that it should turn off possibly null warnings for this occurrence.
if (boardMap[i,j] != null) {
Console.Write(boardMap[i,j]!.color.ToString() + " " + boardMap[i,j]!.type.ToString());
}
else {
Console.Write("X");
}