List<T>.IList.Insert(Int32, Object) Method

Reference

Definition

Namespace:: System.Collections.Generic

Assemblies:: mscorlib.dll, System.Collections.dll

Assemblies:: netstandard.dll, System.Collections.dll

Assembly:: System.Collections.dll

Assembly:: mscorlib.dll

Assembly:: netstandard.dll

Source:: List.cs

Source:: List.cs

Source:: List.cs

Important

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Inserts an item to the IList at the specified index.

 virtual void System.Collections.IList.Insert(int index, System::Object ^ item) = System::Collections::IList::Insert;

void IList.Insert(int index, object item);

abstract member System.Collections.IList.Insert : int * obj -> unit
override this.System.Collections.IList.Insert : int * obj -> unit

Sub Insert (index As Integer, item As Object) Implements IList.Insert

Parameters

index: Int32

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

item: Object

The object to insert into the IList.

Implements

Insert(Int32, Object)

Exceptions

ArgumentOutOfRangeException

index is not a valid index in the IList.

ArgumentException

item is of a type that is not assignable to the IList.

Remarks

If index equals the number of items in the IList, then item is appended to the end.

This method is an O(n) operation, where n is Count.

Applies to

Product	Versions
.NET	Core 1.0, Core 1.1, Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9, 10
.NET Framework	2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1
.NET Standard	1.0, 1.1, 1.2, 1.3, 1.4, 1.6, 2.0, 2.1
UWP	10.0

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