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DbExpressionBuilder.Equal Method

.NET Framework 4.5

Creates a new DbComparisonExpression that compares the left and right arguments for equality.

Namespace:  System.Data.Common.CommandTrees.ExpressionBuilder
Assembly:  System.Data.Entity (in System.Data.Entity.dll)

public static DbComparisonExpression Equal(
	this DbExpression left,
	DbExpression right


Type: System.Data.Common.CommandTrees.DbExpression

An expression that specifies the left argument.

Type: System.Data.Common.CommandTrees.DbExpression

An expression that specifies the right argument.

Return Value

Type: System.Data.Common.CommandTrees.DbComparisonExpression
A new DbComparisonExpression representing the equality comparison.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type DbExpression. When you use instance method syntax to call this method, omit the first parameter. For more information, see Extension Methods (Visual Basic) or Extension Methods (C# Programming Guide).


left or right is null.


No common equality-comparable result type exists between left and right.

.NET Framework

Supported in: 4.6, 4.5

Windows 8.1, Windows Server 2012 R2, 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.

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