Expression.ListInit Method (NewExpression, ElementInit[])
Creates a ListInitExpression that uses specified ElementInit objects to initialize a collection.
Assembly: System.Core (in System.Core.dll)
static member ListInit : newExpression:NewExpression * [<ParamArrayAttribute>] initializers:ElementInit[] -> ListInitExpression
Parameters
- newExpression
-
Type:
System.Linq.Expressions.NewExpression
A NewExpression to set the NewExpression property equal to.
- initializers
-
Type:
System.Linq.Expressions.ElementInit[]
An array of ElementInit objects to use to populate the Initializers collection.
Return Value
Type: System.Linq.Expressions.ListInitExpressionA ListInitExpression that has the NodeType property equal to ListInit and the NewExpression and Initializers properties set to the specified values.
| Exception | Condition |
|---|---|
| ArgumentNullException | newExpression or initializers is null. -or- One or more elements of initializers are null. |
| ArgumentException | newExpression.Type does not implement IEnumerable. |
The Type property of newExpression must represent a type that implements IEnumerable.
The Type property of the resulting ListInitExpression is equal to newExpression.Type.
The following example demonstrates how to use the ListInit(NewExpression, ElementInit[]) method to create a ListInitExpressionthat represents the initialization of a new dictionary instance with two key-value pairs.
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