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DataRowComparer<TRow> Class

Compares two DataRow objects for equivalence by using value-based comparison.

Namespace:  System.Data
Assembly:  System.Data.DataSetExtensions (in System.Data.DataSetExtensions.dll)

generic<typename TRow>
where TRow : DataRow 
public ref class DataRowComparer sealed : IEqualityComparer<TRow>

Type Parameters

TRow

The type of objects to be compared, typically DataRow.

This class implements the IEqualityComparer<T> interface and uses value-based semantics to compare DataRow objects. This class is required because the default implementations of some set-based operations (such as Distinct, Union, Intersect, and Except) use reference-based semantics to compare DataRow object references, instead of comparing the DataRow object values. The Default class is used to compare the values of the DataRow objects and does not compare the object references.

This class cannot be directly instantiated. Instead, the Default property must be used to return a singleton instance of the Default class.

This class is stateless.

This class is sealed and cannot be derived from.

System::Object
  System.Data::DataRowComparer<TRow>

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5

.NET Compact Framework

Supported in: 3.5

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