CODEWITHSUNDEEP
qtvalidationqlineeditqregexpqregularexpression
Rishabh Bansal
Rishabh Bansal

Reputation: 61

QRegExp for IP Address of QlineEDit in QT

How we can validate for QlineEdit control when i want to enter the IP Address into QlineEdit control, that control should be allow only IP address . don't allow any alphabets ,characters except dot(.) All the parts should be in range of 0-255

IP Address contain four parts and must three dots(.): first part should contain 3 digits.(must) second part should contain min 1 digit and max 3 digits.. third part should contain min 1 digit and max 3 digits. four part should contain minimun 1 digit.

ex: 122.234.245.211 121.112.112.44 255.255.136.132 133.231.123.2 255.0.0.0 121.0.0.23

Below ADDRESS should not accept: should give errorMessage bOx

ex: 24.253.321.422 442.445.552.444 23535.35.353.33 3532.333.332

Upvotes: 0

Views: 2503

Answers (1)

Kiran P
Kiran P

Reputation: 730

You can make use of QRegExpValidator class. And regex as like this:

[0-9]{1,3}\\.[0-9]{1,3}\\.[0-9]{1,3}\\.[0-9]{1,3}

After that use QLineEdit::setValidator () function to set validator.

Hope that helps...

Upvotes: 1

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