problem in use base in c#

<pre lang="css">public class TxtProNet : TextBox
  {
    private Color FBC;
    private Color FFC;
    private Font FF;
    private bool FTS;
    private Color LFBC;
    private Color LFFC;
    private Font LFF;
    private bool ETT;
    private bool ETC;
    private bool AS;
    private bool MER;
    public double TextValue;
    private bool TFO;
    private bool TEO;
    private bool TNO;
    private bool TDS;
    private bool TAC;
    private bool CTRL;
    private bool ALT;
    private bool SHIFT;
    private string TOC;
    private string ME;
    public string NumberToChar;
    private int i;
    private string YY;
    private string STR;
    private bool MESD;
    private bool MEIFS;



    public TxtProNet()
    {
      this.FBC = Color.Yellow;
      this.FFC = Color.Blue;
      this.FF = Control.DefaultFont;
      this.FTS = true;
      this.ETT = true;
      this.ETC = true;
      this.MER = true;
      this.TAC = true;
      this.TOC = "";
      this.ME = "";
      this.NumberToChar = "صفر";
   base.\u002Ector();//<<-------problem
    }
}