PropertyInfo.CanWrite Property

Property Value

Type: System.Boolean
true if this property can be written to; otherwise, false.

Imports System.Reflection

Class Example

   ' Define one writable property and one that is not writable.

   Private _caption As String = "A Default Caption"
   Public Property Caption() As String
      Get
         Return _caption 
      End Get
      Set(ByVal Value As String)
         If _caption <> Value Then
            _caption = Value
         End If
      End Set
   End Property

   Private _text As String = "Default text"
   Public ReadOnly Property Text() As String
      Get
         Return _text 
      End Get
   End Property

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

      outputBlock.Text &= "Reflection.PropertyInfo.CanWrite" & vbLf & vbLf

      Dim captionInfo As PropertyInfo = GetType(Example).GetProperty("Caption")
      Dim textInfo As PropertyInfo = GetType(Example).GetProperty("Text")

      ' Display the CanWrite properties.
      outputBlock.Text &= "CanWrite for the Caption property: " & _
         captionInfo.CanWrite & vbLf
      outputBlock.Text &= "CanWrite for the Text property: " & _
         textInfo.CanWrite & vbLf

   End Sub
End Class

' This example produces the following output:
'
'Reflection.PropertyInfo.CanWrite
'
'CanWrite for the Caption property: True
'CanWrite for the Text property: False

using System;
using System.Reflection;

class Example
{
   // Define one writable property and one that is not writable.

   private string _caption = "A Default Caption";
   public string Caption   
   {
      get
      {
         return _caption;
      }
      set
      {
         if (_caption!=value)
         {
            _caption = value;
         }
      }
   }

   private string _text = "Default text";
   public string Text   
   {
      get
      {
         return _text;
      }
   }

   public static void Demo(System.Windows.Controls.TextBlock outputBlock)
   {
      outputBlock.Text += "Reflection.PropertyInfo.CanWrite\n\n";

      PropertyInfo captionInfo = typeof(Example).GetProperty("Caption");
      PropertyInfo textInfo = typeof(Example).GetProperty("Text");

      // Display the CanWrite properties.
      outputBlock.Text += 
         "CanWrite for the Caption property: " + captionInfo.CanWrite + "\n";
      outputBlock.Text += 
         "CanWrite for the Text property: " + textInfo.CanWrite + "\n";
   }
}

/* This example produces the following output:

Reflection.PropertyInfo.CanWrite

CanWrite for the Caption property: True
CanWrite for the Text property: False
 */