Here, we will figure out how to embed a component at a determined record in a Collection in C#?
Given a Collection of Integer and we need to embed a component at given file.
To embed a component in Collection, we use Insert() technique, it acknowledges two parameters list and thing, where the record is an integer type and the thing is of T type, for example, the kind of the Collection.
Syntax:
public void Insert (int index, T item);
Note: Insert() technique may return special case (ArgumentOutOfRangeException) if the record is either under 0 or more prominent than the tally.
C# code to embed a component in the Collection
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
class JustTechReview
{
public static void Main()
{
// declaring a collection of integers
Collection<int> iColl = new Collection<int>();
// adding elements to the collection
iColl.Add(100);
iColl.Add(200);
iColl.Add(300);
iColl.Add(400);
// displaying total number of elements
Console.WriteLine("Total number of elements: " + iColl.Count);
// displaying all elements
foreach (int ele in iColl)
{
Console.WriteLine(ele);
}
// now inserting 900 at 3rd index
iColl.Insert(3, 900);
// displaying total number of elements
Console.WriteLine("Total number of elements: " + iColl.Count);
// displaying all elements
foreach (int ele in iColl)
{
Console.WriteLine(ele);
}
}
}
Output
Total number of elements: 4
100
200
300
400
Total number of elements: 5
100
200
300
900
400
Showing an Exception
Here, we will embed a component at – 1 record that will create “ArgumentOutOfRangeException” exemption.
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
class JustTechReview
{
public static void Main()
{
// declaring a collection of integers
Collection<int> iColl = new Collection<int>();
// adding elements to the collection
iColl.Add(100);
iColl.Add(200);
iColl.Add(300);
iColl.Add(400);
// displaying total number of elements
Console.WriteLine("Total number of elements: " + iColl.Count);
// displaying all elements
foreach (int ele in iColl)
{
Console.WriteLine(ele);
}
// now inserting 900 at -1 index
// that will generate exception
iColl.Insert(-1, 900);
// displaying total number of elements
Console.WriteLine("Total number of elements: " + iColl.Count);
// displaying all elements
foreach (int ele in iColl)
{
Console.WriteLine(ele);
}
}
}
Output
Total number of elements: 4
100
200
300
400
Unhandled Exception:
System.ArgumentOutOfRangeException: Index must be within the bounds of the List.
Parameter name: index
at System.ThrowHelper.ThrowArgumentOutOfRangeException
(System.ExceptionArgument argument, System.ExceptionResource resource) [0x00029]
in <65984520577646ec9044386ec4a7b3dd>:0
at System.Collections.ObjectModel.Collection`1[T].Insert (System.Int32 index, T item)
[0x00026] in <65984520577646ec9044386ec4a7b3dd>:0
at JustTechReview.Main () [0x0007f] in <d658237a48934373b441d64c47cad823>:0
[ERROR] FATAL UNHANDLED EXCEPTION: System.ArgumentOutOfRangeException:
Index must be within the bounds of the List.
Parameter name: index
at System.ThrowHelper.ThrowArgumentOutOfRangeException
(System.ExceptionArgument argument, System.ExceptionResource resource) [0x00029]
in <65984520577646ec9044386ec4a7b3dd>:0
at System.Collections.ObjectModel.Collection`1[T].Insert (System.Int32 index, T item)
[0x00026]
in <65984520577646ec9044386ec4a7b3dd>:0
at JustTechReview.Main () [0x0007f] in <d658237a48934373b441d64c47cad823>:0