Article
11/18/2011

ConstructorInfo.Invoke Method (BindingFlags, Binder, array<Object[], CultureInfo)

Microsoft Silverlight will reach end of support after October 2021. Learn more.

When implemented in a derived class, invokes the current constructor with the specified arguments, using the specified binder and culture to validate the argument types.

Namespace: System.Reflection
Assembly: mscorlib (in mscorlib.dll)

Syntax

'Declaration
Public MustOverride Function Invoke ( _
    invokeAttr As BindingFlags, _
    binder As Binder, _
    parameters As Object(), _
    culture As CultureInfo _
) As Object

public abstract Object Invoke(
    BindingFlags invokeAttr,
    Binder binder,
    Object[] parameters,
    CultureInfo culture
)

Parameters

invokeAttr
Type: System.Reflection.BindingFlags
One of the enumeration values that specifies the type of binding.

binder
Type: System.Reflection.Binder
An object that defines a set of properties and enables the binding, coercion of argument types, and invocation of members using reflection. If binder is nulla null reference (Nothing in Visual Basic), Type.DefaultBinder is used.

parameters
Type: array<System.Object[]
An array of type Object used to match the number, order, and type of the parameters for this constructor, under the constraints of binder. If this constructor does not require parameters, pass nulla null reference (Nothing in Visual Basic) or an array with zero elements; for example, new Object[] {} (New Object() {} in Visual Basic). Any object in this array that is not explicitly initialized with a value will contain the default value for that object type. For reference-type elements, this value is nulla null reference (Nothing in Visual Basic). For value-type elements, this value is 0, 0.0, or false, depending on the specific element type.

culture
Type: System.Globalization.CultureInfo
An object that is used to govern the coercion of types. If this is nulla null reference (Nothing in Visual Basic), the CultureInfo for the current thread is used.

Return Value

Type: System.Object
An instance of the class that is associated with the constructor.

Exceptions

Exception	Condition
ArgumentException	The parameters array does not contain values that match the types accepted by this constructor, under the constraints of the binder.
TargetInvocationException	The invoked constructor throws an exception.
TargetParameterCountException	An incorrect number of parameters was passed.
NotSupportedException	Creation of TypedReference and RuntimeArgumentHandle types is not supported.
MemberAccessException	The class is abstract. -or- The constructor is a class initializer.
MethodAccessException	The constructor is private or protected.

Remarks

In Silverlight, you can invoke only accessible constructors.

The number, type, and order of elements in the parameters array must match the number, type, and order of parameters for the constructor reflected by this instance, as determined by the specified binder.

Platform Notes

Silverlight for Windows Phone

Invoke throws an ArgumentException exception instead of a TargetParameterCountException exception when there is a mismatch in the number of arguments.

Version Information

Silverlight

Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

XNA Framework

Supported in: Xbox 360, Windows Phone OS 7.0

Platforms

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

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