How to set a filter to DragDrop Data.GetPresent using c# ?

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I have a listbox in which I can drag and drop files, but I want my application to reject any file that is not either ".mp3", ".wav" or ".wma".

Tried using Path.GetExtension, but I don't know how to make it accept more than one type of file.

This is what I'm using:

C#

private void listBox1_DragDrop(object sender, DragEventArgs e)
       {
           if (e.Data.GetDataPresent(DataFormats.FileDrop))
           {
               string[] filenames = (string[])e.Data.GetData(DataFormats.FileDrop);

               foreach (string filename in filenames)
               {
                   if (Path.GetExtension(filename) == ".mp3")
                   {
                       listBox1.Items.Add(filename);
                   }
                   else
                   {
                       MessageBox.Show("This type of file is not supported!");
                   }

               }
           }
       }

So I want to make it function like the OpenFileDialog Filter option("*.mp3|*.wav|*.wma")

THNAKS IN ADVANCE!

Posted 28-Jan-15 11:49am

ChrisCreateBoss

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Ravi Bhavnani · Accepted Answer · 2015-01-28T12:07:00

Solution 1

I think it's as simple as replacing:

C#

if (Path.GetExtension(filename) == ".mp3") {
    listBox1.Items.Add(filename);
}
else ...

with:

C#

string ext = Path.GetExtension(filename);
if ((ext == ".mp3") || (ext == ".wma") || (ext == ".wmv")) {
    listBox1.Items.Add(filename);
}
else ...

/ravi

Posted 28-Jan-15 12:07pm

Ravi Bhavnani

Comments

ChrisCreateBoss 28-Jan-15 18:15pm

Yeah! It works perfectly! Thank you Ravi!

Ravi Bhavnani 28-Jan-15 18:27pm

You're welcome! :)

/ravi