validation on an IP address

[rajveer]

validating an IP address by setting mask and using regular expression and validator.
But most important is that it should shows the IP address dialog as ( . . . ) not like this000.000.000.000.

[wysota]

Have you tried searching the forum?

[patrik08]

Hi, here from my firefox bookmark: title "Ip Address Validation"
http://www.qtcentre.org/forum/f-qt-programming-2/t-ip-address-validation-6228.html

[rajveer]

Hi,

i have gone through it but i couldnt find the solution .

i did this thing by first setting mask then creating a regular exp and after that setting the validator. but it would accept the data but shows the ip dialog as 000.000.000.000 and i need that it must be ( . . . ).

[rajveer]

hey hi, can u send me the regular expression for an IP address which takes values from 0 to 255.
thanks

[wysota]

What's wrong with the link you were given?

[rajveer]

hi ,that was not working. the line edit box couldnt accept the regular expression when i used it with input mask.

can u tell me the other way of doing this?

means by deriving a class and use a function to validate an ip address.

please help me out.

thanks

[wysota]

Well... you can't use it with an input mask. But you can validate the address without dots and insert them using fixup.

[rajveer]

hi, can u write a little bit code which shows how to use fix up.

[rajveer]

i hav created a regular expression without using input mask . it can accept all right nos. but for example when i write 32 then it cant take any no. it is right as it wait for .(dot) to put on but is there any way that when i write any no. whete one , two or max. three digits then it shows a message that put dot now, so that user know that now its the time to put dot.

please help me out.

[wysota]

Subclass QValidator and reimplement both validate and fixup. Fixup can work in such a way that if you enter four digits in a row, it places a dot before the last digit.

[rajveer]

hi, can u write a little bit code for how to subclass Qvalidator and how to use Fix up and validate for an line edit box which takes valid IP address.

please help me out

[wysota]

Here you go, something for a start.

[rajveer]

thanks for that file.

But there is some problem, i have created a lineEdit box and i am not able to understand how could i connect my Line Edit box with the code given by you so that it could take values .

please help me out.

[wysota]

I don't know how your code looks like... At the end of the file I attached you'll find (in main()) a line that sets the validator for the line edit.

[jacek]

{moved three posts to: Two Byte character Support (http://www.qtcentre.org/forum/f-qt-programming-2/t-two-byte-character-support-15559.html)}

Please, don't ask two unrelated questions in one thread.