Open a text file in the OpenFileDialog dialog box

Using System;
Using System. Collections. Generic;
Using System. ComponentModel;
Using System. Data;
Using System. Data. SqlClient;
Using System. Drawing;
Using System. Text;
Using System. Windows. Forms;
Using System. IO;

Namespace test
{
Public partial class Form2: Form
{
Public Form2 ()
{
InitializeComponent ();
}

Private void open ToolStripMenuItem_Click (object sender, EventArgs e)
{
OpenFileDialog ofd = new OpenFileDialog ();
Ofd. Title = "Open )";
Ofd. FileName = "";
Ofd. InitialDirectory = Environment. GetFolderPath (Environment. SpecialFolder. myfolderents); // to obtain a specific System folder, you can use the static method of the System. Environment class GetFolderPath (). This method accepts an Environment. SpecialFolder enumeration, which defines the system directory of the returned path.
Ofd. Filter = "text file (*. txt) | *. txt ";
Ofd. validatenames = true; // verify the file validity. Verify that the user input is a valid Windows file name.
Ofd. checkfileexists = true; // verify the path validity.
Ofd. checkpathexists = true; // verify the file Validity
Try
{
If (OFD. showdialog () = dialogresult. OK)
{
StreamReader sr = new StreamReader (ofd. FileName, System. Text. Encoding. Default );
This. richTextBox1.Text = sr. ReadToEnd ();
}
}
Catch (Exception ex)
{
MessageBox. Show (ex. Message. ToString ());
}
}
}
}