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DbUnaryExpression.Argument Property

Gets or sets the DbExpression that defines the argument.

Namespace:  System.Data.Common.CommandTrees
Assembly:  System.Data.Entity (in System.Data.Entity.dll)
public DbExpression Argument { get; }

Property Value

Type: System.Data.Common.CommandTrees.DbExpression
The DbExpression that defines the argument.

The expression is null.


The expression is not associated with the command tree of a DbUnaryExpression, or its result type is not equal or promotable to the required type for the argument.

Derived expression types might perform stricter type checks when the Argument property is set. For example, DbDistinctExpression requires that its argument expression has a collection result type. Typically, derived expression types will not allow Argument to be set to an expression with a result type that is not equal or promotable to the result type of the current value.

.NET Framework

Supported in: 4.5.1, 4.5, 4, 3.5 SP1

.NET Framework Client Profile

Supported in: 4

Windows Phone 8.1, Windows Phone 8, 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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