IList Interface

Represents a non-generic collection of objects that can be individually accessed by index.

Inheritance

Members

int Add(object value)

Adds an element to the end of the IList.
void Clear()

Removes all elements from the IList.
bool Contains(object value)

Determines whether an element is in the IList.
int IndexOf(object value)

Determines the index of a specific item in the IList.
void Insert(int index, object value)

Inserts an element into the IList at the specified index.

index

The zero-based index at which value should be inserted.

value

The Object to insert into the IList. The value can be null for reference types.
void Remove(object value)

Removes the first occurrence of a specific object from the IList.
void RemoveAt(int index)

Removes the element at the specified index of the IList.

index

The zero-based index of the element to remove.
object this[int index] { get; set; }

Gets or sets the element at the specified index.

index

The zero-based index of the element to get or set.

Remarks

The IList interface is the base interface for all non-generic list classes in the System.Collections namespace. It defines the basic operations for a list, such as adding, removing, and accessing elements by index. Many other collection classes, like ArrayList, implement this interface. For strongly-typed collections, consider using the generic System.Collections.Generic.IList<T> interface.