Csharp/CSharp Tutorial/GUI Windows Forms/OpenFileDialog

OpenFileDialog: browsing for a file

<source lang="csharp">using System; using System.Windows.Forms; public class OpenFileDialogDisplay {

 public static void Main() {
 OpenFileDialog dlgOpen = new OpenFileDialog();
 if (dlgOpen.ShowDialog() == DialogResult.OK){
   Console.Write(dlgOpen.FileName);
   }
 }

}</source>

OpenFileDialog: browsing for a set of files

<source lang="csharp">using System; using System.Windows.Forms; public class OpenFileDialogSetFiles {

 public static void Main() 
 {
   OpenFileDialog dlgOpen = new OpenFileDialog();
   
   dlgOpen.Title = "Select one or more files";
   dlgOpen.ShowReadOnly = true;
   dlgOpen.Multiselect = true;
   if (dlgOpen.ShowDialog() == DialogResult.OK)
   {
     foreach (string s in dlgOpen.FileNames)
       Console.WriteLine(s);
   }
 }

}</source>

OpenFileDialog Event: FileOk

<source lang="csharp">using System; using System.Drawing; using System.ruponentModel; using System.Windows.Forms; using System.IO; public class OpenFileDialogEvent{

   static OpenFileDialog openfiledlg1;
   public static void Main()
   {
       openfiledlg1 = new OpenFileDialog();
       openfiledlg1.FileOk += new CancelEventHandler(OnFileOpenOK);
       
       openfiledlg1.Filter = "C# files (*.cs)|*.cs|Bitmap files (*.bmp)|*.bmp";
       openfiledlg1.FilterIndex = 1;
       openfiledlg1.ShowDialog();
   }
   static void OnFileOpenOK(Object sender, CancelEventArgs e)
   {
       MessageBox.Show("You selected the file "+openfiledlg1.FileName);
   }

}</source>

OpenFileDialog: filer, initial directory

<source lang="csharp">using System; using System.Collections.Generic; using System.Windows.Forms; static class MainClass {

   [STAThread]
   static void Main()
   {
       OpenFileDialog dlg = new OpenFileDialog();
       dlg.Filter = "Rich Text Files (*.rtf)|*.RTF|" +
         "All files (*.*)|*.*";
       dlg.CheckFileExists = true;
       dlg.InitialDirectory = Application.StartupPath;
 
       if (dlg.ShowDialog() == DialogResult.OK)
       {
           Console.WriteLine(dlg.FileName);
           
       }
   }

}</source>

Simple Open file dialog

<source lang="csharp">using System; using System.Drawing; using System.Windows.Forms; public class OpenFileDialogTest{

 public static void Main()
 {
   OpenFileDialog dlg=new OpenFileDialog();
   if(dlg.ShowDialog() == DialogResult.OK)
   {
     MessageBox.Show("You selected the file "+dlg.FileName);
   }
 }

}</source>