Type.GetConstructors Method (BindingFlags)

Parameters

• bindingAttr
  Type: System.Reflection.BindingFlags
  A bitmask comprised of one or more BindingFlags that specify how the search is conducted.
  -or-
  Zero, to return nulla null reference (Nothing in Visual Basic).

Return Value

Type: array<System.Reflection.ConstructorInfo[]
An array of ConstructorInfo objects representing all constructors defined for the current Type that match the specified binding constraints, including the type initializer if it is defined. Returns an empty array of type ConstructorInfo if no constructors are defined for the current Type, if none of the defined constructors match the binding constraints, or if the current Type represents a type parameter in the definition of a generic type or generic method.

Imports System.Reflection

Public Class Example

   Protected Sub New()
   End Sub

   Shared Sub New()
   End Sub

   Public Sub New(ByVal i As Integer)
   End Sub

   Public Shared Sub Demo(ByVal outputBlock As System.Windows.Controls.TextBlock)

      outputBlock.Text &= "Constructors found by GetConstructors():" & vbLf
      For Each ci As ConstructorInfo In GetType(Example).GetConstructors()
         outputBlock.Text &= ci.ToString() & vbLf
      Next

      outputBlock.Text &= vbLf & "Constructors found by GetConstructors(BindingFlags):" & vbLf
      For Each ci As ConstructorInfo In GetType(Example).GetConstructors( _
         BindingFlags.Public Or _
         BindingFlags.Static Or _
         BindingFlags.NonPublic Or _
         BindingFlags.Instance)

         outputBlock.Text &= ci.ToString() & vbLf
      Next
   End Sub
End Class

' This example produces the following output:
'
'Constructors found by GetConstructors():
'Void .ctor(Int32)
'
'Constructors found by GetConstructors(BindingFlags):
'Void .ctor()
'Void .cctor()
'Void .ctor(Int32)

using System.Reflection;

public class Example
{
   protected Example() {}

   static Example() {}

   public Example(int i) {}

   public static void Demo(System.Windows.Controls.TextBlock outputBlock)
   {
      outputBlock.Text += "Constructors found by GetConstructors():\n";
      foreach (ConstructorInfo ci in typeof(Example).GetConstructors())
      {
         outputBlock.Text += ci.ToString() + "\n";
      }

      outputBlock.Text += "\nConstructors found by GetConstructors(BindingFlags):\n";
      foreach (ConstructorInfo ci in typeof(Example).GetConstructors(
         BindingFlags.Public | BindingFlags.Static | BindingFlags.NonPublic |
         BindingFlags.Instance))
      {

         outputBlock.Text += ci.ToString() + "\n";
      }
   }
}

/* This example produces the following output:

Constructors found by GetConstructors():
Void .ctor(Int32)

Constructors found by GetConstructors(BindingFlags):
Void .ctor()
Void .cctor()
Void .ctor(Int32)
 */