List<T>.FindAll(Predicate<T>) Method is used to get all the elements that match the conditions defined by the specified predicate.
Properties of List:
- It is different from the arrays. A list can be resized dynamically but arrays cannot.
- List class can accept null as a valid value for reference types and it also allows duplicate elements.
- If the Count becomes equals to Capacity then the capacity of the List increases automatically by reallocating the internal array. The existing elements will be copied to the new array before the addition of the new element.
public System.Collections.Generic.List<T> FindAll (Predicate<T> match);
match: It is the Predicate<T> delegate that defines the conditions of the elements which is to be searched.
Return value: This method returns a List<T> containing all the elements that match the conditions defined by the specified predicate otherwise it returns an empty List<T>.
Exception: This method will give ArgumentNullException if the match is null.
Below programs illustrate the use of List<T>.FindAll(Predicate<T>) Method:
Elements Present in List: 2 4 7 2 3 2 4 Elements that Match: 2 4 2 2 4
Elements Present in List: 17 77 15 9 3 7 57 Result is: No Match Found
- C# | Remove all elements of a List that match the conditions defined by the predicate
- C# | How to get the last occurrence of the element in the List that match the specified conditions
- C# | How to check whether a List contains the elements that match the specified conditions
- C# | Remove elements from a SortedSet that match the predicate
- C# | Check if an array contain the elements that match the specified conditions
- C# | Check if every List element matches the predicate conditions
- C# | Remove elements from a HashSet with conditions defined by the predicate
- C# | First occurrence in the List that matches the specified conditions
- C# | Predicate Delegate
- C# | Adding the elements of the specified collection to the end of the List
- C# | How to insert the elements of a collection into the List at the specified index
- C# | Reverse the order of the elements in the entire List or in the specified range
- C# | Get or Set at specified index in StringCollection
- C# | Get or Set the value associated with specified key in Hashtable
- C# | Get or set the value associated with the specified key in StringDictionary
- C# | Get or set the value associated with specified key in ListDictionary
- C# | Get or set the element at specified index in Collection<T>
- C# | Get or set the value associated with specified key in SortedList
- C# | Get or set the element at the specified index in ArrayList
- C# | How to get hash code for the specified key of a Hashtable
If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to firstname.lastname@example.org. 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.