C# Type GetConstructor(BindingFlags, Binder, Type[], ParameterModifier[])

Description

Type GetConstructor(BindingFlags, Binder, Type[], ParameterModifier[])searches for a constructor whose parameters match the specified argument types and modifiers, using the specified binding constraints.

Syntax

Type.GetConstructor(BindingFlags, Binder, Type[], ParameterModifier[]) has the following syntax.


[ComVisibleAttribute(true)]//  w  w  w .j  av a  2 s.  c  om
public ConstructorInfo GetConstructor(
  BindingFlags bindingAttr,
  Binder binder,
  Type[] types,
  ParameterModifier[] modifiers
)

Returns

Type.GetConstructor(BindingFlags, Binder, Type[], ParameterModifier[]) method returns A ConstructorInfo object representing the constructor that matches the specified requirements, if found; otherwise, null.

Example

The following program obtains the type of MyClass1 class, gets the ConstructorInfo object matching the specified binding flags, and displays the signature of the constructor.


using System;/*from  w w w  .  j a  va 2  s.com*/
using System.Reflection;
using System.Security;


public class MyClass1
{
    public MyClass1(int i){}
    public static void Main()
    {
            Type myType = typeof(MyClass1);
            Type[] types = new Type[1];
            types[0] = typeof(int);

            ConstructorInfo constructorInfoObj = myType.GetConstructor(
                BindingFlags.Instance | BindingFlags.Public, null, types, null);
            if (constructorInfoObj != null )
            {
                Console.WriteLine(constructorInfoObj.ToString());
            }
            else
            {
                Console.WriteLine("The constructor of the MyClass1 that is public " +
                    "and takes an integer as a parameter is not available.");
            }
    }
}

The code above generates the following result.