Numeric Edit Control

In my application I needed an edit control which accepts only numeric numbers. In many science applications this is indispensable, but it is actually not implemented in MS-Visual C/C++. It is not difficult to implement this control and I see that some people implemented it. In my own code, some new features were enriched as error messages and range defines, etc.

Anyhow, my work is in progress...



class CNumEdit : public CEdit
{
public:
 CNumEdit();
 virtual ~CNumEdit();

public:
 enum {VALID = 0x00, OUT_OF_RANGE = 0x01, INVALID_CHAR = 0x02};
 virtual void Verbose(BOOL v);
 virtual BOOL Verbose();
 virtual int IsValid();
 virtual int IsValid(const CString &str);
 virtual void SetValue(float val);
 virtual float GetValue();
 virtual void GetRange(float &max, float &min);
 virtual void SetRange(float max, float min);

protected:
 BOOL m_Verbose;
 float m_Delta, m_MinValue, m_MaxValue;

 //{{AFX_MSG(CNumEdit)
 afx_msg void OnChar(UINT nChar, UINT nRepCnt, UINT nFlags);
 //}}AFX_MSG
}


Download demo project - 32 KB



Comments

Leave a Comment
  • Your email address will not be published. All fields are required.

Top White Papers and Webcasts

  • Microsoft® Office 365 is a top choice for enterprises that want a cloud-based suite of productivity/ collaboration applications. With Office 365, you get access to Microsoft™ Office solutions practically anytime, anywhere, on virtually any device. It's a great option for current Microsoft users who can now build on their experience with Microsoft™ solutions while enjoying the flexibility of a cloud-based delivery. But even organizations with no previous investment in Microsoft will find that …

  • You've managed to piece together the "DREAM TEAM." Your tech staff works like a well-oiled machine, keeping your company humming and thriving. And then it happens: dissension. For whatever reason, your employees have grown unhappy and you find out they're searching for new employment or losing productivity. What did you do wrong? Did you hire the wrong people? Did your company push them away? Or is it a combination of numerous factors? Read this white paper to learn how to build an environment that fosters …

Most Popular Programming Stories

More for Developers

RSS Feeds

Thanks for your registration, follow us on our social networks to keep up-to-date