禁止编辑框粘贴数据

up vote 0 down vote accepted

I found 2 ways of solving the problem....please check the below...

1st method:

class CNoPasteEdit: public CEdit{public:CNoPasteEdit();~CNoPasteEdit();protected:// This line will need to be added by hand because WM_PASTE is not available in// class wizardafx_msg LRESULT OnPaste(WPARAM wParam, LPARAM lParam);afx_msg void OnContextMenu(CWnd* pWnd, CPoint point);DECLARE_MESSAGE_MAP()};

Then you will need to edit the .cpp file for this class like so

CNoPasteEdit::CNoPasteEdit(){// Put any construction code here}CNoPasteEdit:~:CNoPasteEdit(){// Put any destruction code here}BEGIN_MESSAGE_MAP(CNoPasteEdit, CEdit)// This line is needed because there is no default macro for WM_PASTE messages// This line will also need to be added by handON_MESSAGE(WM_PASTE, OnPaste)ON_WM_CONTEXTMENU()END_MESSAGE_MAP()LRESULT CNoPasteEdit::OnPaste(WPARAM wParam, LPARAM lParam){// Put any code here you want to execute when the user right clicks on the edit// control. Just leave it blank to disable the menu}void CNoPasteEdit::OnContextMenu(CWnd* pWnd, CPoint point){// Put any code here you want to execute when the user tries to paste into the edit// conrtol. Just leave it blank to prevent pasting.}

2nd method: Handle the ON_EN_CHANGE event and capture the text in the CString and check if its more than the limited character..if its..you can clear the text box with a warning message...