C# 如何创建将字典写入csv文件的通用方法?

C# 如何创建将字典写入csv文件的通用方法?,c#,function,C#,Function,我想编写一个函数,接收具有任意键和值类型的字典,并将它们写入csv文件。例如,如果我有以下课程: public class VerificationResult { public enum resInfo { sessionID, testFilePath, testFileName, ID1, ID2, score1, score2, isGood,

我想编写一个函数,接收具有任意键和值类型的字典,并将它们写入csv文件。例如,如果我有以下课程:

public class VerificationResult
{
    public enum resInfo
    {
        sessionID,
        testFilePath,
        testFileName,
        ID1,
        ID2,
        score1,
        score2,
        isGood,
        isTrue
    };

    public string[] resData = 
        new string[Enum.GetNames(typeof (resInfo)).Length];

    public VerificationResult(int sessionID,
                              string testFilePath,
                              string Id1,
                              string Id2,
                              string score1,
                              string score2,
                              string isGood)
    {
        resData[(int) resInfo.sessionID] = sessionID.ToString();
        resData[(int) resInfo.testFilePath] = testFilePath;
        resData[(int) resInfo.testFileName] =
            Path.GetFileNameWithoutExtension(testFilePath);
        resData[(int) resInfo.ID1] = Id1;
        resData[(int) resInfo.ID2] = Id2;
        resData[(int) resInfo.score1] = Score1;
        resData[(int) resInfo.score2] = Score2;
        resData[(int) resInfo.isGood] = isGood;
        resData[(int) resInfo.isTrue] = (Id1 == IsGood).ToString();
    }
};
以及定义为:

private Dictionary<int,VerificationResult> verificationResults
专用字典验证结果
我想创建一个通用函数,它能够将这个字典打印到一个csv文件中,并带有值成员的头(在本例中是VerificationResult类的成员)


我决定发送一个数组或值类型成员的枚举作为参数。问题是我不必知道保存我需要的数据数组的值类成员的名称,或者(如果我决定以不同方式实现它)如何遍历未知值类成员并将其打印到文件中。有没有一种方法不使用类似eval的函数就可以做到这一点?我是否尝试过这么做?我是否应该在每次需要时都编写一个特定的函数并保持这种状态?

您可以与委托一起指定键和值的字符串表示方式在我的示例中,我创建了一个用于IDictionary的方法

public static class DictionaryExtension {
    public static void WriteToCsv<K, V>(
        this IDictionary<K, V> dictionary,
        string path,
        Func<K, string> keyToString,
        Func<V, string> valueToString,
        string separator) {

        StringBuilder content = new StringBuilder();
        foreach (KeyValuePair<K, V> keyValuePair in dictionary)
            content.AppendLine(string.Join(separator, new List<string> {
                keyToString(keyValuePair.Key),
                valueToString(keyValuePair.Value)
            }));

        File.WriteAllText(path, content.ToString());
    }
}
以及以下字典:

Dictionary<long, ComplexType> test = new Dictionary<long, ComplexType>();
test.Add(1, new ComplexType { Number = 1, Name = "one"});
test.Add(2, new ComplexType { Number = 1, Name = "two" });
test.Add(3, new ComplexType { Number = 1, Name = "three" });
test.Add(4, new ComplexType { Number = 1, Name = "four" });
1;one
2;two
3;three
4;four
足够写字典了:

Dictionary<long, ComplexType> test = new Dictionary<long, ComplexType>();
test.Add(1, new ComplexType { Number = 1, Name = "one"});
test.Add(2, new ComplexType { Number = 1, Name = "two" });
test.Add(3, new ComplexType { Number = 1, Name = "three" });
test.Add(4, new ComplexType { Number = 1, Name = "four" });
1;one
2;two
3;three
4;four