I have a list that needs to have objects added or modified depending on if they already exist or not named countries. It contains Country type objects and they themselves contain a name, points and a Skier type object.
List<Country> countries = new List<Country>();
...inputs
string name= inputData[1];
if (find if a country with name exists inside countries list)
{
change the country
}
else
{
make new country
}
I have the other stuff figured out but I dont know what to put in the if.
countries.Any(c=>c.Name==name) will return you a Boolean true if name exists in the list, but you might be better swapping Any for FirstOrDefault and testing the result:
var country = countries.FirstOrDefault(c=>c.Name==name);
if(country == default)
//add
else
//update the properties of the `country` variable here
could you use first or default to check the list. if it is not there add it.
if (countries.FirstOrDefault(x => x.Name == name) == null){
countries.add(new Country{Name = name});
} else {
// change country
}
you can use List<T>.Exists(Predicate<T>) Method . Specifies whether the List<T> contains the specified value.
if(countries.Exists(a => a.Name == name))
{
//change properties
}
else
{
//add
}
