Skip to Main Content
C# Cookbook, 2nd Edition
book

C# Cookbook, 2nd Edition

by Jay Hilyard, Stephen Teilhet
January 2006
Intermediate to advanced content levelIntermediate to advanced
1184 pages
43h 23m
English
O'Reilly Media, Inc.
Content preview from C# Cookbook, 2nd Edition
This is the Title of the Book, eMatter Edition
Copyright © 2007 O’Reilly & Associates, Inc. All rights reserved.
510
|
Chapter 9: Delegates, Events, and Anonymous Methods
Discussion
The code for the modified DirectoryInfoNotify class contains a new event called
BeforeCreate, which is raised from the OnBeforeCreate method. The OnBeforeCreate
method is initially called by the Create method immediately before calling the Create
method of the wrapped DirectoryInfo object. This setup allows the event listener for
the
BeforeCreate event to decide whether the directory creation operation should be
canceled.
{
if (!e.Cancel)
{
if (!((DirectoryInfoNotify)sender).Root.FullName.Equals(@"d:\"))
{
e.Cancel = true;
}
else
{
Console.WriteLine(
"Notified BEFORE creation of directory--sender: " +
((DirectoryInfoNotify)sender).FullName);
}
}
}
public void AfterCreateListener(object sender, EventArgs e)
{
Console.WriteLine("Notified after creation of directory--sender: " +
((DirectoryInfoNotify)sender).FullName);
}
public void AfterCreateSubDirListener(object sender, EventArgs e)
{
Console.WriteLine("Notified after creation of SUB-directory--sender: " +
((DirectoryInfoNotify)sender).FullName);
}
public void AfterMoveToListener(object sender, EventArgs e)
{
Console.WriteLine("Notified of directory move--sender: " +
((DirectoryInfoNotify)sender).FullName);
}
public void AfterDeleteListener(object sender, EventArgs ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Start your free trial

You might also like

C# Cookbook

C# Cookbook

Stephen Teilhet, Jay Hilyard
C# Cookbook

C# Cookbook

Joe Mayo
Head First C#, 4th Edition

Head First C#, 4th Edition

Andrew Stellman, Jennifer Greene

Publisher Resources

ISBN: 0596100639Supplemental ContentCatalog PageErrata