C# 如何添加更新删除重复的键值对列表

我需要有一个通用方法，以便从重复的键值对列表中添加Update Delete

我的重复键值对如下所示

        List<KeyValuePair<string, int>> dupesStudentIdsList = new List<KeyValuePair<string, int>>();
        dupesStudentIdsList.Add(new KeyValuePair<string, int>("1234_456X", 1));
        dupesStudentIdsList.Add(new KeyValuePair<string, int>("1234_456X", 2));
        dupesStudentIdsList.Add(new KeyValuePair<string, int>("1234_456X", 3));
        dupesStudentIdsList.Add(new KeyValuePair<string, int>("1234_456X", 4));
        dupesStudentIdsList.Add(new KeyValuePair<string, int>("1234_456X", 5));
        //new set of duplicate ids with increasing rowNumber 
        dupesStudentIdsList.Add(new KeyValuePair<string, int>("9999_999A", 1));
        dupesStudentIdsList.Add(new KeyValuePair<string, int>("9999_999A", 2));
        dupesStudentIdsList.Add(new KeyValuePair<string, int>("9999_999A", 4));
        dupesStudentIdsList.Add(new KeyValuePair<string, int>("9999_999A", 5));
        dupesStudentIdsList.Add(new KeyValuePair<string, int>("9999_999A", 6));

//密钥作为“1234_456X”传递时的预期结果

现在我只想通过传递键和值来删除一条记录（“9999999a”，6）

//预期结果

("9999_999A", 1));
("9999_999A", 2));
("9999_999A", 4));
("9999_999A", 5));  // last row is removed. 

("9999_999A", 1));
("9999_999A", 2));
("9999_999A", 4));
("9999_999A", 999999));  //only value is updated for that key and value 

//仅更新传递键和值的值

  private void updateValueOnly(string key , int Value) // Only Value update for the Key
    {
    }

//预期结果

("9999_999A", 1));
("9999_999A", 2));
("9999_999A", 4));
("9999_999A", 5));  // last row is removed. 

("9999_999A", 1));
("9999_999A", 2));
("9999_999A", 4));
("9999_999A", 999999));  //only value is updated for that key and value 

---

这就是我所做的。如果有更好的方法，我将不胜感激

   private void RemoveDupesbyKey(string DupeKey) //passing "1234_456X"
{
    dupesStudentIdsList.RemoveAll(x => x.Key.Equals(Dupekey));
}

private void RemoveByPassingKeyandValue(string key, int Value) // this is passed
{
    dupesStudentIdsList.Remove(new KeyValuePair<string, int>(key, Value));
}

private void RemoveDupesbyKey（字符串DupeKey）//传递“1234_456X”
{
RemoveAll（x=>x.Key.Equals（Dupekey））；
}
private void RemoveByPassingKeyandValue（字符串键，int值）//这是传递的
{
删除（新的KeyValuePair（key，Value））；
}

因为KeyValuePair是不可变的。我们需要删除它并添加它

private void UpdateValueOnly(string key, int Value) // this is passed
{

  if (dupesStudentIdList.Where(x => x.Key.Equals(key) && x.Value.Equals(Value).Any()))//check if it matches 
    {
        //remove
        dupesStudentIdsList.Remove(new KeyValuePair<string, int>(key, Value));
        // add 
        dupesStudentIdsList.Add(new KeyValuePair<string, int>(key, Value));
    }

}

private void UpdateValueOnly（字符串键，int值）//这是传递的
{
if（dupesStudentIdList.Where（x=>x.Key.Equals（Key）&&x.Value.Equals（Value.Any（））//检查是否匹配
{
//除去
删除（新的KeyValuePair（key，Value））；
//加
添加（新的KeyValuePair（key，Value））；
}
}

private void UpdateValueOnly(string key, int Value) // this is passed
{

  if (dupesStudentIdList.Where(x => x.Key.Equals(key) && x.Value.Equals(Value).Any()))//check if it matches 
    {
        //remove
        dupesStudentIdsList.Remove(new KeyValuePair<string, int>(key, Value));
        // add 
        dupesStudentIdsList.Add(new KeyValuePair<string, int>(key, Value));
    }

}