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IList.Insert Method

List<T>.IList.Insert Method

Inserts an item to the IList at the specified index.

Namespace:  System.Collections.Generic
Assemblies:   mscorlib (in mscorlib.dll)
  System.Collections (in System.Collections.dll)

void IList.Insert(
	int index,
	Object item
)

Parameters

index
Type: System.Int32

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

item
Type: System.Object

The object to insert into the IList.

Implements

IList.Insert(Int32, Object)

ExceptionCondition
ArgumentOutOfRangeException

index is not a valid index in the IList.

ArgumentException

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

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.

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

XNA Framework

Supported in: 3.0, 2.0, 1.0

.NET for Windows Phone apps

Supported in: Windows Phone 8.1, Windows Phone Silverlight 8.1, Windows Phone Silverlight 8

Portable Class Library

Supported in: Portable Class Library
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