Single gives you some guarantees about the returned value. Use First/FirstOrDefault if you don't need those guarantees. You can also provide predicate for First

Single gives you some guarantees about the returned value. Use First/FirstOrDefault if you don't need those guarantees. You can also provide predicate for FirstOrDefault to select First element that matches your predicate. > Enumerable.Single Method - Returns a single, specific element of a sequence. Some overload descriptions: - Returns the only element of a sequence that satisfies a specified condition, and throws an exception if more than one such element exists. - Returns the only element of a sequence, and throws an exception if there is not exactly one element in the sequence. https://learn.microsoft.com/en-us/dotnet/api/system.linq.enumerable.single?view=net-8.0 https://learn.microsoft.com/en-us/dotnet/api/system.linq.enu... > Enumerable.FirstOrDefault Method - Returns the first element of a sequence, or a default value if no element is found. https://learn.microsoft.com/en-us/dotnet/api/system.linq.enumerable.firstordefault?view=net-8.0 https://learn.microsoft.com/en-us/dotnet/api/system.linq.enu...