Expression.NewArrayBounds Method (Type, IEnumerable(Of Expression))
[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]
Creates a NewArrayExpression that represents creating an array that has a specified rank.
Assembly: System.Core (in System.Core.dll)
'Declaration Public Shared Function NewArrayBounds ( _ type As Type, _ bounds As IEnumerable(Of Expression) _ ) As NewArrayExpression
Parameters
- type
- Type: System.Type
A Type that represents the element type of the array.
- bounds
- Type: System.Collections.Generic.IEnumerable(Of Expression)
An IEnumerable(Of T) that contains Expression objects to use to populate the Expressions collection.
Return Value
Type: System.Linq.Expressions.NewArrayExpressionA NewArrayExpression that has the NodeType property equal to NewArrayBounds and the Expressions property set to the specified value.
| Exception | Condition |
|---|---|
| ArgumentNullException | type or bounds is Nothing. -or- An element of bounds is Nothing. |
| ArgumentException | The Type property of an element of bounds does not represent an integral type. |
The Type property of the resulting NewArrayExpression represents an array type whose rank is equal to the length of bounds and whose element type is type.
The Type property of each element of bounds must represent an integral type.
The following example demonstrates how to use the NewArrayBounds method to create an expression tree that represents creating a string array that has a rank of 2.
' Create an expression tree that represents creating a string ' array with rank 2 and bounds (3,2). Dim newArrayExpression As System.Linq.Expressions.NewArrayExpression = _ System.Linq.Expressions.Expression.NewArrayBounds( _ Type.GetType("System.String"), _ System.Linq.Expressions.Expression.Constant(3), _ System.Linq.Expressions.Expression.Constant(2)) ' Output the string representation of the Expression. outputBlock.Text &= newArrayExpression.ToString() & vbCrLf ' This code produces the following output: ' ' new System.String[,](3, 2)