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Re: how to make an editfield accept only number or date? have any examples in the documentation? [message #55004 is a reply to message #54996]

Sun, 04 October 2020 17:01

BetoValle is currently offline

BetoValle
Messages: 204
Registered: September 2020
Location: Brasil Valinhos SP

Experienced Member

Hi,

see:
... fld.SetConvert(DateIntConvert());
...struct DateIntConvertCls : Convert {
virtual Value Format(const Value& q) const;
virtual Value Scan(const Value& text) const;
virtual int Filter(int chr) const;
};
...Convert& DateIntConvert() {return Single<DateIntConvertCls>(); }
.....

Value DateIntConvertCls::Format(const Value& q) const
{
Date d = Date(1970, 1, 1) + q;
LOG("in format" << "=" << d);
return IsNull(q) ? String() : ::Format(Date(1970, 1, 1) + (int)q);
}

if i want show in "LOG" convert d to a string within

... String s = Format(d); //(*)
... LOG("in format" << "=" << s );

an exception occurs and the test application aborts silently.
If Format (*) returns a String, what would be the problem / inspection?

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[Message index]

		how to make an editfield accept only number or date? have any examples in the documentation? By: BetoValle on Sat, 03 October 2020 17:56
		Re: how to make an editfield accept only number or date? have any examples in the documentation? By: BetoValle on Sat, 03 October 2020 19:06
		Re: how to make an editfield accept only number or date? have any examples in the documentation? By: BetoValle on Sun, 04 October 2020 03:03
		Re: how to make an editfield accept only number or date? have any examples in the documentation? By: BetoValle on Sun, 04 October 2020 03:10
		Re: how to make an editfield accept only number or date? have any examples in the documentation? By: mirek on Sun, 04 October 2020 09:51
		Re: how to make an editfield accept only number or date? have any examples in the documentation? By: BetoValle on Sun, 04 October 2020 17:01
		Re: how to make an editfield accept only number or date? have any examples in the documentation? By: BetoValle on Mon, 05 October 2020 04:51
		Re: how to make an editfield accept only number or date? have any examples in the documentation? By: mirek on Mon, 05 October 2020 14:34
		Re: how to make an editfield accept only number or date? have any examples in the documentation? By: mirek on Mon, 05 October 2020 14:36
		Re: how to make an editfield accept only number or date? have any examples in the documentation? By: BetoValle on Mon, 05 October 2020 15:15
		Re: how to make an editfield accept only number or date? have any examples in the documentation? By: BetoValle on Mon, 05 October 2020 17:43
		Re: how to make an editfield accept only number or date? have any examples in the documentation? By: mirek on Tue, 06 October 2020 00:33
		Re: how to make an editfield accept only number or date? have any examples in the documentation? By: BetoValle on Tue, 06 October 2020 01:54

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