如何在c#中对动态列表进行排序

Question

function void sortDynamicData(typeOfClass,SortKey)
{
List<dynamic> results = null; //results might be of any type it may contain students data or books data or professors data, hence I took as dynamic
results = services.GetMyresults(typeOfClass); //returns list of dynamic objects

results = results.OrderBy(SortKey).ToList();
 ...
 ...
 ...

}

我的问题是我想根据sortKey对结果进行排序任何帮助都会非常明显.

Answer 1

如果可能的话,我认为如果您的数据是T列表而不是动态列表,则更好,更容易使用

如果您无法将输入数据更改为List:

public List<dynamic> Sort<T>(List<dynamic> input, string property)
{
    var type = typeof(T);   
    var sortProperty = type.GetProperty(property);
    return input.OrderBy(p => sortProperty.GetValue(p, null)).ToList();
}

用法:您需要在列表中提供数据类型,例如,按名称列出List属性,其中dynamic是Person类型

var result = Sort<Person>(people, "Name");

================

更新:

如果您无法提供数据类型,可以尝试使用Sort()

public List<dynamic> Sort(List<dynamic> input, string property)
{   
    return input.OrderBy(p => p.GetType()
                               .GetProperty(property)
                               .GetValue(p, null)).ToList();
}

用法:

var people = new List<dynamic>
{
    new Person { Name = "Person 5" },
    new Person { Name = "Person 2" },
    new Person { Name = "Person 9" },
    new Person { Name = "Person 1" }
};  

var result = Sort(people, "Name");