StringCollection class in C#

The StringCollection class represents a collection of strings. The following are the properties of the StringCollection class-

Sr.no

Properties and description
1	Count Get the number of key/value pairs contained OrderedDictionary collection.
2	IsReadOnly Gets a value indicating whether the StringCollection is Read only..
3	IsSynchronized strong> Gets a value indicating whether to access StringCollection is synchronized (thread-safe).
4	Item[Int32] Gets or sets the element at the specified index.
5	SyncRoot Gets an object that can be used to synchronize access to a StringCollection.

The following are the methods of StringCollection class-

Teacher ID	Method and description
1	Add(String) Add the string to End StringCollection.
2	AddRange(String[] ) Copy the elements of the string array to the end StringCollection.
3	Clear() strong> Removes all strings from the StringCollection.
4	Contains(String) Determine whether the specified string is in StringCollection.
5	CopyTo(String[] ,Int32) Copy the entire StringCollection value to a one-dimensional string array, starting at the specified position The index of the target array.
6	Equals(Object) Determine whether the specified object is equal to current object. (Inherited from Object)
7	GetEnumerator() Returns an iterated StringEnumerator StringCollection.

Now let us see some examples

To check whether two StringCollection objects are equal or not, the code is as follows-

Example

Live demonstration

using System;
using System.Collections.Specialized;
public class Demo {
   public static void Main() {
      StringCollection strCol1 = new StringCollection();
      strCol1.Add("Accessories");
      strCol1.Add("Books");
      strCol1.Add("Electronics");
      Console.WriteLine("StringCollection1 elements...");
      foreach (string res in strCol1) {
         Console.WriteLine(res);
      }
      StringCollection strCol2 = new StringCollection();
      strCol2.Add("Accessories");
      strCol2.Add("Books");
      strCol2.Add("Electronics");
      Console.WriteLine("StringCollection2 elements...");
      foreach (string res in strCol1) {
         Console.WriteLine(res);
      }
      Console.WriteLine("Both the String Collections are equal? = "+strCol1.Equals(strCol2));
   }
}

Output

This will produce the following output−

StringCollection1 elements...
Accessories
Books
Electronics
StringCollection2 elements...
Accessories
Books
Electronics
Both the String Collections are equal? = False

To check whether the specified string is in the StringCollection, the code is as follows−

Example

Online Demo

using System;
using System.Collections.Specialized;
public class Demo {
   public static void Main() {
      StringCollection stringCol = new StringCollection();
      String[] arr = new String[] { "100", "200", "300", "400", "500" };
      Console.WriteLine("Array elements...");
      foreach (string res in arr) {
         Console.WriteLine(res);
      }
      stringCol.AddRange(arr);
      Console.WriteLine("Does the specified string is in the StringCollection? = "+stringCol.Contains("800"));
   }
}

Output

This will produce the following output−

Array elements...
100
200
300
400
500
Does the specified string is in the StringCollection? = False

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