When I launch the sentence below
string[] a1=Directory.GetDirectories("A:\")
I get a error because I don't put a floppy disk in driver A:
How can I know that a driver is unavailable Do I need to write the sentences below Is there a better way
try {
string[] a1=Directory.GetDirectories("A:\")
}
catch {
MessageBox.Show("A driver is unavailable!");
}
How can I know that a driver is unavailable?
Hot Topic
- Help on Get Data from Dataset
- Are there other Frameworks for .NET Framework?
- Why TransactionOptions does not work with SQL Server on Windows 2000
- Why do all examples assume you're binding data to a control?
- White space below a nested table
- .Net performance counters go missing repeatedly
- RDP over ssh tunnel freezes
- ArrayList.ToArray Returning Error Int -> String
- Sample certificate folder missing from WSE sample
- using readxmlschema to create dataset as datasource for datagridview
.NET Development
- how to draw barchart in c#asp.net
- How to Develop-Basic Network Application?
- Return DataTable or DataSet without schema
- OnTimer 64bit compilation problem
- Problems bring the MEM USAGE down on my program...
- R
- visual web developer 2005 express edition
- How to send mail from a Windows Application??
- AccessViolationException when client is terminated
- .NET remoting error:
How can I know that a driver is unavailable?
vvgalc
Leandro Mussi
You are correct in your approach. In case of drives which can have removable media such as floppy drives and cd/dvd rom drives, you need to manage by catching the Exception.
Regards,
Vikram
Rahul_It
I recommend catching the most limited set of exceptions possible (e.g. only DirectoryNotFoundException). There are a number of exceptions that can be thrown in code, and narrowing your error paths and recovery logic will be better for your code maintenance.
On a related note, you may want to look at Directory.Exists instead of GetDirectories to avoid the exception, depending on your scenario. Of course, calling Directory.Exists, then using the Directory doesn't prevent the user from pulling out the cd/floppy between the two calls, so you'll need to be tolerant to that possibility in your code (e.g. exception handling).
Hope that helps,
Stephen
http://blogs.msdn.com/stfisher