Windows apps
Collapse the table of content
Expand the table of content
Information
The topic you requested is included in another documentation set. For convenience, it's displayed below. Choose Switch to see the topic in its original location.

Expression::NewArrayInit Method (Type^, IEnumerable<Expression^>^)

 

Creates a NewArrayExpression that represents creating a one-dimensional array and initializing it from a list of elements.

Namespace:   System.Linq.Expressions
Assembly:  System.Core (in System.Core.dll)

public:
static NewArrayExpression^ NewArrayInit(
	Type^ type,
	IEnumerable<Expression^>^ initializers
)

Parameters

type
Type: System::Type^

A Type that represents the element type of the array.

initializers
Type: System.Collections.Generic::IEnumerable<Expression^>^

An IEnumerable<T> that contains Expression objects to use to populate the Expressions collection.

Return Value

Type: System.Linq.Expressions::NewArrayExpression^

A NewArrayExpression that has the NodeType property equal to NewArrayInit and the Expressions property set to the specified value.

Exception Condition
ArgumentNullException

type or initializers is null.

-or-

An element of initializers is null.

InvalidOperationException

The Type property of an element of initializers represents a type that is not assignable to the type that type represents.

The Type property of each element of initializers must represent a type that is assignable to the type represented by type, possibly after it is quoted.

System_CAPS_noteNote

An element will be quoted only if type is Expression. Quoting means the element is wrapped in a Quote node. The resulting node is a UnaryExpression whose Operand property is the element of initializers.

The Type property of the resulting NewArrayExpression represents an array type whose rank is 1 and whose element type is type.

The following example demonstrates how to use the NewArrayInit method to create an expression tree that represents creating a one-dimensional string array that is initialized with a list of string expressions.

No code example is currently available or this language may not be supported.

Universal Windows Platform
Available since 8
.NET Framework
Available since 3.5
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1
Return to top
Show:
© 2017 Microsoft