Small extension big use, oneself expand a foreachread bar

Has the IList extension method been used for Foreach, and depressed IEnumerable does not have this extension? (No use?? Use it, really very convenient, can be less than a few lines!! ）

Do I have to use for instead of foreach in order to have an index?

Then this extension method is for you:

 Public Static void Foreachread<t> ( this ienumerable<t> dx,action<int,t> Act) {        int0;       foreach (var in dx)      {          act (i, item);          I+ +;      }}

Finished?? Yes, I'm done.

What's the use of such a thing??

For an operation to use an index, you can only:

list<int> arr =Newlist<int> () {1,2,3,4,5,6,7,8,9,Ten};varQuery=arr. Where (x = x >5). ToList (); for(inti =0; I < query. Count; i++) {Console.WriteLine (string. Format ("{0}:{1}", I,query[i]));} Console.readkey ();

Now you can:

list<intnew list<int1,2,3,4,5, 6,7,8,9,5). Foreachread ((i, O) + = {Console.WriteLine (string. Format ("{0}:{1}", I, O);}); Console.readkey ();

Does it look like jquery!!!?

Very simple things, see others have not sent, come to the bar.

This article comes from Bo-ke-yuan

Small extension big use, oneself expand a foreachread bar