Foreach with where clause?

Question

Is there a structure like this in C # where I could say something similar to the following:

foreach(object obj in listofObjects where obj.property == false){

so that it only iterates through a specific subset of objects in the collection?

+3

MetalPhoenix Dec 29. 15 at 17:10

5 answers

You can use method syntax

foreach(object obj in listofObjects.Where(obj => !obj.property))

The query syntax can also be used, but it is not readable (at least for me):

foreach(object obj in (from x in listofObjects where !x.property select x))

If you are going to use this, I would store the request in a variable:

var query = (from x in listofObjects 
             where !x.property  
             select x);

foreach(var obj in query) { }

+9

Selman Genç Dec 29. 15 at 17:11

LINQ:

foreach( var obj in listofObjects.Where( q => q.property == false ) )
    ...

+3

Chris Dec 29. 15 at 17:11

You can do the following:

foreach (var obj in listOfObjects.Where(o => !o.Property))
{
    // ...
}

+2

msporek Dec 29. 15 at 17:11

You can use extension method Where

and lambda. from Linq.

Make sure you have a namespace System.Linq

.

 foreach (var obj in listOfObjects.Where(obj => obj.property == false))

+1

Daniel A. White Dec 29. 15 at 17:11

Vsevolod Goloviznin · Accepted Answer · 2014-12-29T17:11:09+0000

It's simple with the mehtods extension:

foreach(object obj in listofObjects.Where(w => !w.property))