C / C++ / MFC

if(CB_ERR == m_combo.GetCurSel())
{
    // no selection
}

CString sValue;
m_ComboBox.GetWindowText(sValue);
if(sValue.IsEmpty())
{
    // no selection
}

Member 14575556 wrote:

I want to pop up a message if I didn't select anything from the drop down and press a button.

Gerry Schmitz wrote:

Tying the validation to the button "click" ("record" validation) is a lot simpler than context / field validation.

Gerry Schmitz wrote:

In this case, he would have to "disable" the button (to "not allow a press"), then enable it when a selection was made.

Gerry Schmitz wrote:

The more fields, the more "options", the more complex the enabling / disabling logic.

for (int i = nColumnCount - 1; i >= 0; i--)
{
    m_myListCtrl.DeleteColumn(i);
}

afx_msg void MyDlg::OnEnChangeEdit();

BEGIN_MESSAGE_MAP(MyDlg, CDialogEx)
      ON_EN_CHANGE(IDC_EDIT2, &MedicationDlg::OnEnChangeEdit)
END_MESSAGE_MAP()

void MyDlg :: OnEnchangeEdit()
{
   CString temp;
   //could you give some some direction on how to get the text entered in the edit control
   // Should I use the control value variable of the edit control to save the input
   // I am confused here, I would like some direction. Thanks
   updateData(TRUE);
   temp = m_editvariable;
    
   Function(1st parameter, temp) // this function will check the text entered in the edit control, with the default value and  display appropriate message 
}

void MyDlg::OnEnChangeEdit()
{
	CString temp;
	m_Edit.GetWindowTextW(temp); // CEdit m_Edit;
	MessageBox(temp);

	Function(1st parameter, temp);
}