< T > .IList .Contains Method
Determines whether the
contains a specific value. IList
This method determines equality using the default equality comparer
for EqualityComparer <T > .Default 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 .NET Framework
Supported in: 4, 3.5, 3.0, 2.0
.NET Framework Client Profile
Supported in: 4, 3.5 SP1
Portable Class Library
Supported in: Portable Class Library
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see
.NET Framework System Requirements.
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