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Concise way to create an array of integers from 1 to 100 in C #

I'm looking for a concise way to create an array of integers from 1 to 100 in C #, i.e.

        int[] values =  {1,2,3 ..., 100};

so that I can use the array in the foreach loop:

       foreach (var i in values)
        {
            // do whatever  
        }

Any ideas?

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2 answers


Usage Enumerable.Range

:



Enumerable.Range(1, 100).ToArray();
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It probably doesn't make much sense to me that this is - Oded 18 votes (including my own +1) pretty much everyone says, but just to point out that if you're going to use integers in an array, produce anything - let's say an object , - then you can roll it all.

So let's say you want the lines:

var strings = Enumerable.Range(1,100)
  .Select(i => i.ToString()).ToArray();

Will give you an array of strings.

Or perhaps MyWidget

created by calling a method that uses the index for something:



var myWidgets = Enumerable.Range(1,100)
  .Select(i => ProduceMyWidget(i)).ToArray();

If the source code of the code foreach

consisted of several lines of code, then you simply use the block{} 

var myWidgets = Enumerable.Range(1,100)
  .Select(i => {
    if(i == 57)
      return ProduceSpecial57Widget(i);
    else
      ProduceByWidget(i);
  }).ToArray();

Obviously, this last example is a bit silly, but it often illustrates how the traditional foreach

one can be replaced with a Select

plus call ToArray()

.

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