Cloud Training (Online)




How to retreive the list of files from Directory in C# ?

Here’s a simple example that gets all the file names from a given directory .

The Directory class defined in the System.IO namespace provides the static GetFiles method that retreives all the file names with the complete path in the directory .

The below will retreive all the files names along with its complete path from C:\temp

private void Form1_Load(object sender, EventArgs e)
{
     string[] lstFiles = Directory.GetFiles(@"c:\temp");
     foreach (string file in lstFiles)
     {
          listBox1.Items.Add(file);
     }
}

It is also possible to filter and select only the files with a
particular extension .

For example , if i want to search for all exe files with in the folder
, i can use the filter as stated below .

private void Form1_Load(object sender, EventArgs e)
{
     string[] lstFiles = Directory.GetFiles(@"c:\temp","*.exe");
     foreach (string file in lstFiles)
     {
          listBox1.Items.Add(file);
     }
}

The above examples doesnot search the sub directories , to include the sub directories , we can pass the third parameter of type enum “SearchOption.AllDirectories” .

Senthil Kumar B
Senthil Kumar is a former Microsoft MVP (Most Valuable Professional). He is a Co-Author of the book "Windows 10 Development Recipes using JavaScript and CSS" for Apress Publication. He is a technical presenter, blogger, mentor and a Geek.  Senthil is a regular speaker is various local user groups. He has presented at conferences like Great Indian Developer Summit (GIDS) & Microsoft DevCamps. You can reach out to him via his Twitter handle @isenthil.