How to check if all values of a C# dictionary are true?-CodePudding

I have a dictionary in C# with

var customDictionary = new Dictionary<string, bool>();

How can I check if all the values in a dictionary are true and return true only in that case?

CodePudding user response：

var allValuesAreTrue = customDicationary.Values.All(value => value);

Notice that the result is true if the dictionary is empty because "all values" are equal to true.

CodePudding user response：

One way to do it, is with Linq. Check the values of the dictionary and see how many come back with true/false and continue based on that number.

public void Program()
{
    var customDictionary = new Dictionary<string, bool>();
    customDictionary.Add("Apples are red", true);
    customDictionary.Add("Oranges are green", false);
    customDictionary.Add("Carrots are orange", true);
    
    bool allTrue = CheckDictionary(customDictionary);
    
    if(allTrue == true)
    {
        Console.Write("All True");
    }
    else{
        Console.Write("At least one false");
    }
}

public bool CheckDictionary(Dictionary<string, bool> dictToCheck)
{
    var test = dictToCheck.Where(x => x.Value == false);
    if (test.Count() == 0)
    {
        return true;
    }
    else
    {
        return false;
    }
}

Output: At least one false