C#

FileInfo fileInfo = new FileInfo(files[i]);
StreamReader streamReader = fileInfo.OpenText();

// Hela raden
string line;
do
{
line = streamReader.ReadLine();
// Does line contain "searchText"??
<font color="red">if ((line != null) && (line.IndexOf(searchText) != -1))</font>
{
listBox1.Items.Add(line);
}
}
while(line != null); 

protected override void WndProc(ref Message m)
{
  switch(m.Msg)
  {
  case 0x0112:  // WM_SYSCOMMAND
    if( m.WParam.ToInt32() == 0xF020 ) // WParam == SC_MINIMIZE
    {
      // Code to execute when minimizing
    }
 
    base.WndProc(ref m);  // Let the regular actions happen in addition to our action
    break;
 
  default:
    base.WndProc(ref m);
  }
}

protected override void OnResize(System.EventArgs e)
{
    if(WindowState==FormWindowState.Minimized)
    {
	ShowInTaskbar = false;
    }
}

int pos = myString.IndexOf(name);

public class MyComponent : ......, IMessageFilter
{
  ......
 
  bool IMessageFilter.PreFilterMessage(ref Message m)
  {
    if( m.Msg == 0x020A )
    {
      m.HWnd = this.Handle;  // Just in case it checks the HWnd :)
      WndProc(ref m); // Let it dispatch the mouse wheel events to your control
      return true;
    }
    
    return false;
  }
}