Determines the index of a specific item in the IList.
Assembly: mscorlib (in mscorlib.dll)
Syntax
Private Function IndexOf ( _
item As [%$TOPIC/bb352278_en-us_VS_110_2_0_0_0_0%] _
) As [%$TOPIC/bb352278_en-us_VS_110_2_0_0_0_1%] Implements [%$TOPIC/bb352278_en-us_VS_110_2_0_0_0_2%].[%$TOPIC/bb352278_en-us_VS_110_2_0_0_0_3%][%$TOPIC/bb352278_en-us_VS_110_2_0_1_0_0%] [%$TOPIC/bb352278_en-us_VS_110_2_0_1_0_1%].[%$TOPIC/bb352278_en-us_VS_110_2_0_1_0_2%](
[%$TOPIC/bb352278_en-us_VS_110_2_0_1_0_3%] item
)private:
virtual [%$TOPIC/bb352278_en-us_VS_110_2_0_2_0_0%] IndexOf(
[%$TOPIC/bb352278_en-us_VS_110_2_0_2_0_1%]^ item
) sealed = [%$TOPIC/bb352278_en-us_VS_110_2_0_2_0_2%]::[%$TOPIC/bb352278_en-us_VS_110_2_0_2_0_3%]private abstract IndexOf :
item:[%$TOPIC/bb352278_en-us_VS_110_2_0_3_0_0%] -> [%$TOPIC/bb352278_en-us_VS_110_2_0_3_0_1%]
private override IndexOf :
item:[%$TOPIC/bb352278_en-us_VS_110_2_0_3_0_2%] -> [%$TOPIC/bb352278_en-us_VS_110_2_0_3_0_3%]Parameters
- item
- Type:
SystemObject
The object to locate in the IList.
Implements
IListIndexOf(Object)
Exceptions
| Exception | Condition |
|---|---|
| ArgumentException | item is of a type that is not assignable to the IList. |
Remarks
This method determines equality using the default equality comparer EqualityComparerTDefault for T, the type of values in the list.
This method performs a linear search; therefore, this method is an O(n) operation, where n is Count.
Platforms
Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
