PropertyInfo.CanRead Property

Gets a value indicating whether the property can be read.

Property Value

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

Imports System.Reflection
Class Example
 ' Define one readable property and one that is not readable.
 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 WriteOnly Property Text() As String
 Set(ByVal Value As String)
 If _text <> Value Then
 _text = Value
 End If
 End Set
 End Property
 Public Shared Sub Demo(ByVal outputBlock As System.Windows.Controls.TextBlock) 
 outputBlock.Text &= "Reflection.PropertyInfo.CanRead" & vbLf & vbLf
 Dim ex As New Example()
 outputBlock.Text &= "Caption = " & ex.Caption & vbLf
 ' The Text property cannot be read because it has no get accessor. The 
 ' following line of code causes a compile error:
 'outputBlock.Text &= "Text = " & ex.Text & vbLf
 Dim captionInfo As PropertyInfo = GetType(Example).GetProperty("Caption")
 Dim textInfo As PropertyInfo = GetType(Example).GetProperty("Text")
 ' Display the CanRead properties.
 outputBlock.Text &= "CanRead for the Caption property: " & _
 captionInfo.CanRead & vbLf
 outputBlock.Text &= "CanRead for the Text property: " & _
 textInfo.CanRead & vbLf
 End Sub
End Class
' This example produces the following output:
'
'Reflection.PropertyInfo.CanRead
'
'Caption = A Default Caption
'CanRead for the Caption property: True
'CanRead for the Text property: False

using System;
using System.Reflection;
class Example
{
 // Define one readable property and one that is not readable.
 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 
 {
 set
 {
 if (_text!=value)
 {
 _text = value;
 }
 }
 }
 public static void Demo(System.Windows.Controls.TextBlock outputBlock)
 {
 outputBlock.Text += "Reflection.PropertyInfo.CanRead\n\n";
 Example ex = new Example();
 outputBlock.Text += "Caption = " + ex.Caption + "\n";
 // The Text property cannot be read because it has no get accessor. The 
 // following line of code causes a compile error:
 //outputBlock.Text += "Text = " + ex.Text + "\n";
 PropertyInfo captionInfo = typeof(Example).GetProperty("Caption");
 PropertyInfo textInfo = typeof(Example).GetProperty("Text");
 // Display the CanRead properties.
 outputBlock.Text += 
 "CanRead for the Caption property: " + captionInfo.CanRead + "\n";
 outputBlock.Text += 
 "CanRead for the Text property: " + textInfo.CanRead + "\n";
 }
}
/* This example produces the following output:
Reflection.PropertyInfo.CanRead
Caption = A Default Caption
CanRead for the Caption property: True
CanRead for the Text property: False
 */

PropertyInfo Class

System.Reflection Namespace