列表排序问题
我在排序集合时遇到问题。用户保存一些值并对其进行排序。
下次启动计划时必须订购新系列。
用户保存的值可以在新集合中,但是当这些值不在新集合中时,可能会出现这种情况。
我写了一些代码,我想要你的反馈如果它有意义
var oldValues = new List<string>(new[] { "id5", "id3", "id1" });
var valuesToOrder = new List<string>(new[] { "id1", "id2", "id3", "id4" });
int numberOfReorderedValues = 0;
for (int i = 0; i < oldValues.Count; i++)
{
if (valuesToOrder.Contains(oldValues[i]))
{
int indexOfValueWhichShouldBeBefore = valuesToOrder.IndexOf(oldValues[i]);
string valueWhichShouldBeBefore = valuesToOrder[indexOfValueWhichShouldBeBefore];
string valueWhichShouldBeAfter = valuesToOrder[numberOfReorderedValues];
valuesToOrder[numberOfReorderedValues] = valueWhichShouldBeBefore;
valuesToOrder[indexOfValueWhichShouldBeBefore] = valueWhichShouldBeAfter;
numberOfReorderedValues++;
这个代码可以工作,但是我明天必须把它展示给我的老板,我不会去愚弄
I have a problem with sorting collection. User saves few values and he sorts it.
At next launch program must order a new collection.
Values which have been saved by user can be in new collection, but It can be situation , when those values aren't in new collection.
I wrote some code, and I want your feedback If it has sense
var oldValues = new List<string>(new[] { "id5", "id3", "id1" });
var valuesToOrder = new List<string>(new[] { "id1", "id2", "id3", "id4" });
int numberOfReorderedValues = 0;
for (int i = 0; i < oldValues.Count; i++)
{
if (valuesToOrder.Contains(oldValues[i]))
{
int indexOfValueWhichShouldBeBefore = valuesToOrder.IndexOf(oldValues[i]);
string valueWhichShouldBeBefore = valuesToOrder[indexOfValueWhichShouldBeBefore];
string valueWhichShouldBeAfter = valuesToOrder[numberOfReorderedValues];
valuesToOrder[numberOfReorderedValues] = valueWhichShouldBeBefore;
valuesToOrder[indexOfValueWhichShouldBeBefore] = valueWhichShouldBeAfter;
numberOfReorderedValues++;
This code works, but I must tomorrow show it to my boss, and I don't go to fool
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目前尚不清楚你在追求什么。
听起来你有 2 个列表。其中一个包含“必需”列表,另一个包含“从中选择”列表。
使用LINQ排序怎么样?
It's not clear what you're after.
It sounds like you've got 2 lists. One of them contains a list of 'required', and the other contains a list of 'pick from'.
How about use LINQ to sort?