Sum variuos实体 [英] Sum variuos entities

问题描述

Hi
我从模型中提取不同的实体。用for循环来做这个，比如

for（i = 0; i< whatever; ++ i）

{

var myEntity = GetMyEntity （）;

myEntityList + = myEntity +\ n;

}

结果列表（myEntityList）将如下所示



MyEntity1

MyEntity1

MyEntity3

MyEntity4

MyEntity3

MyEntity1

MyEntity3

MyEntity4

MyEntity4

MyEntity4

MyEntity3



我的问题不是。我如何安排和总结看起来像

MyEntity1 = 3

MyEntity3 = 4

MyEntity4 = 4



我根本没有编程技能。



谢谢



我尝试过：



创建数组。可能是一个更聪明的方式来处理它。如上所述，我没有编程技巧

Hi I am extracting different entities from a model. Doing this with for loop, like
for(i=0; i<whatever; ++i)
{
var myEntity = GetMyEntity();
myEntityList += myEntity + "\n";
}
Result list (myEntityList) will look like this

MyEntity1
MyEntity1
MyEntity3
MyEntity4
MyEntity3
MyEntity1
MyEntity3
MyEntity4
MyEntity4
MyEntity4
MyEntity3

No my question is. How can I arrange and sum this to look like
MyEntity1 = 3
MyEntity3 = 4
MyEntity4 = 4

I have no programming skills at all.

Thanks

What I have tried:

Creating an Array. Could be a smarter way to deal with it. As mentioned, I have no programming skills

推荐答案

你必须做一些工作来按摩它以满足你的需求但这是一般的想法，使用你的输出你指出myEntityList会包含什么。

You'll have to do some work to massage this to meet your needs but this is the general idea, using your output of what you indicate myEntityList would contain.

// This would be your list of (myEntityList)
            var myEntitity = new List<string>();
            myEntitity.Add("MyEntity1");
            myEntitity.Add("MyEntity1");
            myEntitity.Add("MyEntity3");
            myEntitity.Add("MyEntity4");
            myEntitity.Add("MyEntity3");
            myEntitity.Add("MyEntity1");
            myEntitity.Add("MyEntity3");
            myEntitity.Add("MyEntity4");
            myEntitity.Add("MyEntity4");
            myEntitity.Add("MyEntity4");
            myEntitity.Add("MyEntity3");


            var results = myEntitity.GroupBy(m => m).Select(m => new {EntityName = m.Key, Count = m.Count()});

            foreach (var result in results)
            {
                Console.WriteLine("{0}: {1}", result.EntityName, result.Count);
            }

哪个提供输出

Which provides an output of

MyEntity1: 3
MyEntity3: 4
MyEntity4: 4

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