QIntValidator¶
The
QIntValidator
class provides a validator that ensures a string contains a valid integer within a specified range. More…
Synopsis¶
Functions¶
Virtual functions¶
def
setRange
(bottom, top)
Signals¶
def
bottomChanged
(bottom)def
topChanged
(top)
Detailed Description¶
Example of use:
validator = QIntValidator(100, 999, self) edit = QLineEdit(self) # the edit lineedit will only accept integers between 100 and 999 edit.setValidator(validator)Below we present some examples of validators. In practice they would normally be associated with a widget as in the example above.
pos = 0 v = QIntValidator(100, 900, self) str = "1" v.validate(str, pos) # returns Intermediate str = "012" v.validate(str, pos) # returns Intermediate str = "123" v.validate(str, pos) # returns Acceptable str = "678" v.validate(str, pos) # returns Acceptable str = "999" v.validate(str, pos) # returns Intermediate str = "1234" v.validate(str, pos) # returns Invalid str = "-123" v.validate(str, pos) # returns Invalid str = "abc" v.validate(str, pos) # returns Invalid str = "12cm" v.validate(str, pos) # returns InvalidNotice that the value
999
returns Intermediate. Values consisting of a number of digits equal to or less than the max value are considered intermediate. This is intended because the digit that prevents a number from being in range is not necessarily the last digit typed. This also means that an intermediate number can have leading zeros.The minimum and maximum values are set in one call with
setRange()
, or individually withsetBottom()
andsetTop()
.
QIntValidator
uses itslocale()
to interpret the number. For example, in Arabic locales,QIntValidator
will accept Arabic digits.Note
The
NumberOptions
set on thelocale()
also affect the way the number is interpreted. For example, sinceRejectGroupSeparator
is not set by default, the validator will accept group separators. It is thus recommended to usetoInt()
to obtain the numeric value.See also
QDoubleValidator
QRegExpValidator
toInt()
Line Edits Example
- class PySide2.QtGui.QIntValidator([parent=None])¶
PySide2.QtGui.QIntValidator(bottom, top[, parent=None])
- param parent:
- param bottom:
int
- param top:
int
Constructs a validator with a
parent
object that accepts all integers.Constructs a validator with a
parent
, that accepts integers fromminimum
tomaximum
inclusive.
- PySide2.QtGui.QIntValidator.bottom()¶
- Return type:
int
This property holds the validator’s lowest acceptable value.
By default, this property’s value is derived from the lowest signed integer available (-2147483648).
See also
- PySide2.QtGui.QIntValidator.bottomChanged(bottom)¶
- Parameters:
bottom – int
- PySide2.QtGui.QIntValidator.setBottom(arg__1)¶
- Parameters:
arg__1 – int
This property holds the validator’s lowest acceptable value.
By default, this property’s value is derived from the lowest signed integer available (-2147483648).
See also
- PySide2.QtGui.QIntValidator.setRange(bottom, top)¶
- Parameters:
bottom – int
top – int
Sets the range of the validator to only accept integers between
bottom
andtop
inclusive.
- PySide2.QtGui.QIntValidator.setTop(arg__1)¶
- Parameters:
arg__1 – int
This property holds the validator’s highest acceptable value.
By default, this property’s value is derived from the highest signed integer available (2147483647).
See also
- PySide2.QtGui.QIntValidator.top()¶
- Return type:
int
This property holds the validator’s highest acceptable value.
By default, this property’s value is derived from the highest signed integer available (2147483647).
See also
- PySide2.QtGui.QIntValidator.topChanged(top)¶
- Parameters:
top – int
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