C# 5.0 Programmer's Reference

Chapter 19 ❘ 693
8. The ShowGrandparent example program uses the following code to do this.
private void Form1_Load(object sender, EventArgs e)
{
grandparentTextBox.Text = Path.GetFullPath(
Path.Combine(Application.StartupPath, "..\\.."));
}
If you run the program near the top of the directory hierarchy, the result is simply the top
of the hierarchy. For example, if you run the program in the directory C:\, the program
displays C:\.
9. The FindFiles example program uses the following code to do this.
private void searchButton_Click(object sender, EventArgs e)
{
filesListBox.Items.Clear();
foreach (string filename in Directory.GetFiles(
directoryTextBox.Text, patternTextBox.Text,
SearchOption.AllDirectories))
{
filesListBox.Items.Add(filename);
}
}
10. The FindFilesAndSizes example program uses the following code to do this.
private void searchButton_Click(object sender, EventArgs e)
{
string results = "";
foreach (string filename in Directory.GetFiles(
directoryTextBox.Text, patternTextBox.Text,
SearchOption.AllDirectories))
{
FileInfo info = new FileInfo(filename);
}
results += info.Name + "\r\n";
results += " " + ToFileSize(info.Length) + "\r\n";
}
filesTextBox.Text = results;
11. The WatchForChanges example program uses the following event handlers to display
information about directory changes in the resultsTextBox.
private void myFileSystemWatcher_Changed(object sender, FileSystemEventArgs e)
{
resultsTextBox.AppendText(
DateTime.Now.ToShortDateString() + ": Changed " +
e.Name + "\r\n");
}
private void myFileSystemWatcher_Created(object sender, FileSystemEventArgs e)
{
resultsTextBox.AppendText(
DateTime.Now.ToShortDateString() + ": Created " +
www.it-ebooks.info