Type.GetProperty Method (String, Type, array<Type[], array<ParameterModifier[])

Parameters

• name
  Type: System.String
  The String containing the name of the public property to get.

• returnType
  Type: System.Type
  The return type of the property.

• types
  Type: array<System.Type[]
  An array of Type objects representing the number, order, and type of the parameters for the indexed property to get.
  -or-
  An empty array of the type Type (that is, Type[] types = new Type[0]) to get a property that is not indexed.

• modifiers
  Type: array<System.Reflection.ParameterModifier[]
  An array of ParameterModifier objects representing the attributes associated with the corresponding element in the types array. The default binder does not process this parameter.

Return Value

Type: System.Reflection.PropertyInfo
A PropertyInfo object representing the public property that matches the specified requirements, if found; otherwise, nulla null reference (Nothing in Visual Basic).

Imports System.Reflection

Public Class MyPropertyClass
   Private myPropertyArray(9, 9) As Integer
   ' Declare an indexer.
   Default Public Property Item(ByVal i As Integer, ByVal j As Integer) As Integer
      Get
         Return myPropertyArray(i, j)
      End Get
      Set(ByVal Value As Integer)
         myPropertyArray(i, j) = Value
      End Set
   End Property
End Class 'MyPropertyClass

Public Class Example
   Public Shared Sub Demo(ByVal outputBlock As System.Windows.Controls.TextBlock)
      Try
         Dim myType As Type = GetType(MyPropertyClass)
         Dim myTypeArray(1) As Type
         ' Create an instance of a Type array representing the number, order 
         ' and type of the parameters for the property.
         myTypeArray.SetValue(GetType(Integer), 0)
         myTypeArray.SetValue(GetType(Integer), 1)
         ' Search for the indexed property whose parameters match the
         ' specified argument types and modifiers.
         Dim myPropertyInfo As PropertyInfo = myType.GetProperty("Item", _
               GetType(Integer), myTypeArray, Nothing)
         outputBlock.Text &= myType.FullName + "." + myPropertyInfo.Name + _
               " has a property  type of " + myPropertyInfo.PropertyType.ToString() & vbCrLf
      Catch ex As Exception
         outputBlock.Text &= "An exception occurred " + ex.Message.ToString() & vbCrLf
      End Try
   End Sub 'Main
End Class 'MyTypeClass

using System;
using System.Reflection;
public class MyPropertyClass
{
   private int[,] myPropertyArray = new int[10, 10];
   // Declare an indexer.
   public int this[int i, int j]
   {
      get
      {
         return myPropertyArray[i, j];
      }
      set
      {
         myPropertyArray[i, j] = value;
      }
   }
}
public class Example
{
   public static void Demo(System.Windows.Controls.TextBlock outputBlock)
   {
      try
      {
         Type myType = typeof(MyPropertyClass);
         Type[] myTypeArray = new Type[2];
         // Create an instance of the Type array representing the number, order 
         // and type of the parameters for the property.
         myTypeArray.SetValue(typeof(int), 0);
         myTypeArray.SetValue(typeof(int), 1);
         // Search for the indexed property whose parameters match the
         // specified argument types and modifiers.
         PropertyInfo myPropertyInfo = myType.GetProperty("Item",
             typeof(int), myTypeArray, null);
         outputBlock.Text += myType.FullName + "." + myPropertyInfo.Name +
             " has a property type of " + myPropertyInfo.PropertyType + "\n";
      }
      catch (Exception ex)
      {
         outputBlock.Text += "An exception occurred " + ex.Message + "\n";
      }
   }
}