I want to add a textbox to a program which lists files in given path. It will show current searching directory on a panel. even if I added textvox1.Text = dir
like this, It only shows last directory at the end of the search. Can you tell me why it doesn't work?
Related question
public void GetFiles(string dir)
{
textBox1.Text = dir;
string[] filetypes = new string[] { "cfg", "txt" };
foreach (string ft in filetypes)
{
foreach (string file in Directory.GetFiles(dir, string.Format("*.{0}", ft), SearchOption.TopDirectoryOnly))
{
files.Add(new FileInfo(file));
}
}
foreach (string subDir in Directory.GetDirectories(dir))
{
try
{
GetFiles(subDir);
}
catch
{
}
}
}
The "quick fix" is to call DoEvents()
after setting the TextBox:
textBox1.Text = dir;
Application.DoEvents();
// ... rest of the code ...
The proper fix, however, is to place that code into a background thread. If you use the BackgroundWorker() control you can use ReportProgress() and the associated ProgressChanged() event to update the TextBox.