How do you clear a screen?

[real]

i have 5 edit boxes that need to be cleared. 3 of them i can clear but i can not figure out how to clear the other 2.

these i can clear:
_sFirstName = "";
_sLastname = "";
_sTotalPay = "";

UpdateData(FALSE);

these i cannot:
_nPayRate
_nHrsWrkd

charles

 

[KeithBrautigam]

The SetWindowText function could probably be used to accomplish this. If you use Class Wizard to associate a CEdit control with each edit box, you should be able to do something like this:

_editPayRate.SetWindowText( "" );
_editHrsWrkd.SetWindowText( "" );

assuming, of course, that your edit controls were named _editPayRate and _editHrsWrkd.

You can read about SetWindowText at

http://msdn.microsoft.com/library/devprods/vs6/visualc/vcmfc/_mfc_cwnd.3a3a.setwindowtext.htm

An alternative method is to use the SetSel and Clear functions of the CEdit class:
_editPayRate.SetSel( 0, -1 );
_editPayRate.Clear( );

For info on this, please see

http://msdn.microsoft.com/library/devprods/vs6/visualc/vcmfc/_mfc_cedit_class_members.htm

 

[real]

aiight, the code i have for the _nPayRate and the _nHrsWrkd is :

_sTotalPay.Format( "%9.2f", _nHrsWrkd * _nPayRate);

and to clear the screen i have:

void CTimeCardDlg::OnClrmsg()
{

// Clear the message
_sFirstname = "";
_sLastName = "";
_sTotalPay = "";

// Update the screen
UpdateData(FALSE);
}

but when i type to try and clear the other two _n's it doesnt work. can ne1 tell me what im doing wrong?

 

[GEAK]

The variables you're working with are "value" variables and what you need are "control" variables. Under the variables tab of the ClassWizard, add two more variables for each of your edit boxes, only this time select "control" in the first combo box. Then to clear them you do this (assuming that your control variables are called _wndPayRate and _wndHrsWrkd):

...
UpdateData(FALSE);
_wndPayRate.SetWindowText("");
_wndHrsWrkd.SetWindowText("");

An alternative to creating control variables is this (assuming your control IDs are IDC_PAYRATE and IDC_HRSWRKD):

...
UpdateData(FALSE);
GetDlgItem(IDC_PAYRATE)->SetWindowText("");
GetDlgItem(IDC_HRSWRKD)->SetWindowText("");

Hope this helps