StringCollection class is a new addition to the .NET Framework class library that represents a collection of strings. StringCollection class is defined in the System.Collections.Specialized namespace.
StringCollection.Contains(String) method is used to check whether the specified string is in the StringCollection or not.
public bool Contains (string value);
Here, value is the string to locate in the StringCollection. The value can be null.
Return Value: This method returns true if value is found in the StringCollection, otherwise it returns false.
- The Contains method can confirm the existence of a string before performing further operations.
- This method performs a linear search, therefore, this method is an O(n) operation, where n is Count.
Below programs illustrate the use of StringCollection.Contains(String) Method:
Example 1 :
- C# | Check if the StringCollection is read-only
- C# | Add a string to the end of the StringCollection
- C# | Check if two StringCollection objects are equal
- C# | Check if StringCollection is synchronized (thread safe)
- C# | Copy the elements of a string array to the end of the StringCollection
- C# | StringCollection Class
- How to create a StringCollection in C#
- C# | Get or Set at specified index in StringCollection
- C# | Get the number of strings in StringCollection
- How to get Synchronize access to the StringCollection in C#
- C# | Insert at the specified index in StringCollection
- C# | Remove from the specified index of the StringCollection
- C# | Remove the first occurrence from the StringCollection
- C# | Remove all the strings from the StringCollection
- C# | Get an enumerator that iterates through StringCollection
If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to email@example.com. See your article appearing on the GeeksforGeeks main page and help other Geeks.
Please Improve this article if you find anything incorrect by clicking on the "Improve Article" button below.