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Radu - Adrian Buha
Courses Plus Student 5,535 PointsHow can I display the results of these queries in Visual Studio C#?
Hi,
I'm trying to do these queries in Visual Studio. How can I print/display the results of these queries in a Console Window?
For example, I have this code:
using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks;
namespace Querying { class Program { static void Main(string[] args) { List<int> numbers = new List<int> { 2, 4, 8, 16, 32, 64};
var q = from number in numbers where number > 10 select number;
Console.WriteLine(q);
Console.ReadLine();
}
}
}
But when I run the app, I get these displayed: System.Linq.Enumerable+WhereListIterator'1[System.Int32] instead of {16, 32, 64}. Does anyone know a way?
Many thanks in advance!
4 Answers
Calin Bogdan
14,921 PointsHi!
The query returns a list object. You have to process the elements in order to write them to the console that way.
for (int i=0; i < q.Length; i++)
{
Console.Write(q[i]);
}
Hope it helped!
Kiron Roy
3,210 PointsI cleaned up the code a little bit. Here is a link that is interactive: LINQ number list
Code below:
using System;
using System.Collections.Generic;
using System.Linq;
namespace LINQStuff
{
class Program
{
static void Main()
{
var numbers = new List<int> { 2, 4, 8, 16, 32, 64 };
var numberGreaterThanTen = from number in numbers where number > 10 select number;
foreach (int item in numberGreaterThanTen)
{
Console.WriteLine(item.ToString());
}
Console.ReadLine();
}
}
}
Dávid Polyovka
4,230 PointsDear Radu - Adrian Buha
var q = from number in numbers where number > 10 select number;
foreach (int item in numbers)
{
Console.WriteLine(item.ToString());
}
Dávid Polyovka
4,230 PointsYou have to use ToString() method. Hope it helped.
Radu - Adrian Buha
Courses Plus Student 5,535 PointsYeap! It worked. Thank you David!
Radu - Adrian Buha
Courses Plus Student 5,535 PointsRadu - Adrian Buha
Courses Plus Student 5,535 PointsServus Bogdan!
Still doesn't work. I get the same result... Any ideea why?
Edit: Found the issue, my mistake! I had the query sent ToString();
Thank you for your help!