private void frm_Degistir_FormClosing(object sender, FormClosingEventArgs e)
{
//rtb.Degistir(txt_Degistirilecek.Text, txt_Degistirilecek.Text, rtb.BackColor);
rtb.SelectAll();
rtb.SelectionBackColor = rtb.BackColor;
rtb.Select(0, 0);
}
private void Kapat()
{
rtb.SelectAll();
rtb.SelectionBackColor = rtb.BackColor;
rtb.Select(0, 0);
}