How to set the Read file Access Denied using C# dot net

How to set the Read file Access Denied using C# dot net




string filename = @"c:\karthi\text\bb.txt";
System.Security.Permissions.FileIOPermission permission = new
System.Security.Permissions.FileIOPermission(System.Security.Permissions.FileIOPermissionAccess.Read ,filename);

try
{
permission.Deny();
System.IO.StreamReader sr = new System.IO.StreamReader(filename);
MessageBox.Show(sr.ReadToEnd());

}
catch (System.Security.SecurityException ex)
{
MessageBox.Show("Permission to read the file was denied " );
}
catch (System.Exception ex)
{
MessageBox.Show(ex.Message);
}


Related Articles

Object Serialisation in dot net

This article provides an overview of the serialization used in Microsoft .NET and the usage of the same.For example, serialization is used to save session state in ASP.NET and to copy objects to the clipboard in Windows Forms. It is also used by remoting to pass objects by value from one application domain to another.

More articles: Dot Net

Comments

No responses found. Be the first to comment...


  • Do not include your name, "with regards" etc in the comment. Write detailed comment, relevant to the topic.
  • No HTML formatting and links to other web sites are allowed.
  • This is a strictly moderated site. Absolutely no spam allowed.
  • Name:
    Email: