How can i open txt file with messagebox ok button..

string message = "Do you want to close this window?";

string title = "Text to notepad";

MessageBoxButtons buttons = MessageBoxButtons.YesNo;

DialogResult result = MessageBox.Show(message, title, buttons);

if (result == DialogResult.Yes)

{

    System.Diagnostics.Process.Start().//u need this namespace

Process.Start("notepad.exe", fileName);

}

else

{

    // Do something

}