Security Exception : Event « Windows Presentation Foundation « VB.Net

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VB.Net » Windows Presentation Foundation » EventScreenshots 
Security Exception
Security Exception
    

<Page x:Class="WpfApplication1.Page1"
  xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
  xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="Page1">
    <Grid Height="379" Width="361">
    </Grid>
</Page>

//File:Window.xaml.vb
Imports System
Imports System.Windows
Imports System.Windows.Controls
Imports System.Windows.Documents
Imports System.IO

Namespace WpfApplication1
  Public Partial Class Page1
    Inherits Page
    Public Sub New()
      InitializeComponent()

      Dim SW As StreamWriter
      SW = File.CreateText("c:\s.txt")
      SW.WriteLine("A!")
      SW.WriteLine("B")

      SW.Close()
    End Sub

  End Class
End Namespace

   
    
    
    
  
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