C# 4 and .NET 4

782 ❘ ChaPTer 29 mAnipulAtinG files And the reGistry
}
string query = "Really move the file\n" + filePath + "\nto "
+ textBoxNewPath.Text + "";
if (MessageBox.Show(query,
"Move File", MessageBoxButtons.YesNo) == DialogResult.Yes)
{
File.Move(filePath, textBoxNewPath.Text);
DisplayFolderList(currentFolderPath);
}
}
catch(Exception ex)
{
MessageBox.Show("Unable to move file. The following exception"
+ " occurred:\n" + ex.Message, "Failed");
}
protected void OnCopyButtonClick(object sender, EventArgs e)
{
try
{
string filePath = Path.Combine(currentFolderPath,
textBoxFileName.Text);
string query = "Really copy the file\n" + filePath + "\nto "
+ textBoxNewPath.Text + "";
if (MessageBox.Show(query,
"Copy File", MessageBoxButtons.YesNo) == DialogResult.Yes)
{
File.Copy(filePath, textBoxNewPath.Text);
DisplayFolderList(currentFolderPath);
}
}
catch(Exception ex)
{
MessageBox.Show("Unable to copy file. The following exception"
+ " occurred:\n" + ex.Message, "Failed");
}
}
code download FilePropertiesAndMovement.sln
You are not quite done. You also need to make sure that the new buttons and text box are enabled and
disabled at the appropriate times. To enable them when you are displaying the contents of a file, you add the
following code to DisplayFileInfo():
protected void DisplayFileInfo(string fileFullName)
{
FileInfo theFile = new FileInfo(fileFullName);
if (!theFile.Exists)
{
throw new FileNotFoundException("File not found: " + fileFullName);
}
textBoxFileName.Text = theFile.Name;
textBoxCreationTime.Text = theFile.CreationTime.ToLongTimeString();
textBoxLastAccessTime.Text = theFile.LastAccessTime.ToLongDateString();
textBoxLastWriteTime.Text = theFile.LastWriteTime.ToLongDateString();
textBoxFileSize.Text = theFile.Length.ToString() + " bytes";
// enable move, copy, delete buttons
textBoxNewPath.Text = theFile.FullName;
textBoxNewPath.Enabled = true;
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