Yes.. SetWindowText is not a member of CString. I assume you are using a textbox. make a variable of control type. Something like this CEdit m_edit and then compile the code.Hope this helps.

thank you my code is runnig now i just change it to control and use getwindowtext. thank you very much neil

<big>thank you very much</big> chard your code solve my problem. I posted this problem because i dont have the sample code on how to connect the radiobutton to the command button. Spider and chandru never gave me the sample code to solve my problem. here is now my code in c++ void CTuition1Dlg::OnButton1() {      // TODO: Add your control notification handler code here      UpdateData();      if ( m_button1.GetCheck() == BST_CHECKED )      {              m_edit2 = m_edit1 * .9;           UpdateData(false);      }      if ( m_button2.GetCheck() == BST_CHECKED )      {           double x;              x = m_edit1 * .05;           m_edit2 = m_edit1 + x;           UpdateData(false);      }      if ( m_button3.GetCheck() == BST_CHECKED )      {              double x;           x = m_edit1 * .10;           m_edit2 = m_edit1 + x;           UpdateData(false);      }      UpdateData(false); } if its not for your code I cannot solve it...thank you very much do you have ym sir chard? i would like to ym you if i have a problem on programming and i wish that you will still help me. Once again thank you... neil

i will try sir but if still i cannot please dont stop helping me... thanks a lot. neil

Neil Jigger wrote: ...used a radion button to connect to the command button... What is this supposed to mean? What is a "command button?" "Old age is like a bank account. You withdraw later in life what you have deposited along the way." - Unknown "Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons