How to get collection into string variable ?

Mangesh barmate

13y1.8kVisual Basic .NET

Hi,

I have a LINQ collection.I want to take all values from collection and set into string variable.

My scenario is-->

Foreach(var riderId in SalesPlan.Riders)

{

string str= 101,102,103; //This is riderId coming from salePlan.riders

// This str will fill from collection, var riderId

}

3 Replies

Know the answer? Post it — somebody with the same question will find it here.

Vulpes13y ago
Accepted answer
If you're using .NET 4.0 (VS 2010) or later, try this:

string str = String.Join(",", SalesPlan.Riders);

otherwise try:

string str = String.Join(",", SalesPlan.Riders.Select(r => r.ToString()).ToArray());
0
Muhammed Abdussalam13y ago
Hello Mangesh barmate,
I have one suggestion on this, Please have a look at the code.Given a Sample Console App Code.. Please let me know if further assistance needed.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApplication1
{
class Program
{
static void Main(string[] args)
{
MyCollection coll = new MyCollection();
coll.Add(new Riders() { RiderId = 1, RiderName = "XXXX" });
coll.Add(new Riders() { RiderId = 2, RiderName = "yyyy" });
coll.Add(new Riders() { RiderId = 3, RiderName = "abab" });
coll.Add(new Riders() { RiderId = 4, RiderName = "zzzz" });
string str = coll.ToString();

Console.WriteLine("My Collection to String is {0}", str);

}
}

public class Riders
{
public int RiderId { get; set; }
public string RiderName { get; set; }
}
public class MyCollection : List
{
public override string ToString()
{
string returnValue = null;
for (int i = 0; i < this.Count; i++)
{
returnValue += (this[i] as Riders).RiderId + (i == this.Count - 1 ? ";" : ",");
}
return returnValue;
}
}
}

Regards
Salam
0
Vishal Gilbile13y ago
Hello Friend,
It's quite simple instead of declaring a string variable inside foreach loop try to declare it outside foreach loop. So that the value will not be replaced because as an when your loop moves a new string str variable is created as per your code.

Try following

string str="";
Foreach(var riderId in SalesPlan.Riders)
{
str+= riderId+",";
}

Hope that solves your problem.

With Regards,
Vishal Gilbile
0