QIntValidator ¶

概要 ¶

详细描述 ¶

用法范例：

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 Invalid
											

Notice 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 with setBottom() and setTop() .

QIntValidator uses its locale() to interpret the number. For example, in Arabic locales, QIntValidator will accept Arabic digits.

注意

NumberOptions set on the locale() also affect the way the number is interpreted. For example, since RejectGroupSeparator is not set by default, the validator will accept group separators. It is thus recommended to use toInt() to obtain the numeric value.

另请参阅

QDoubleValidator QRegExpValidator toInt() 行编辑范例

class QIntValidator ( [ parent=None ] ) ¶

QIntValidator(bottom, top[, parent=None])

param parent

QObject

param bottom

int

param top

int

构造验证器采用 parent object that accepts all integers.

构造验证器采用 parent , that accepts integers from minimum to maximum 包含在内。

PySide2.QtGui.QIntValidator. bottom ( ) ¶

返回类型

int

另请参阅

setBottom()

PySide2.QtGui.QIntValidator. bottomChanged ( bottom ) ¶

参数

bottom – int

PySide2.QtGui.QIntValidator. setBottom ( arg__1 ) ¶

参数

arg__1 – int

另请参阅

bottom()

PySide2.QtGui.QIntValidator. setRange ( bottom , top ) ¶

参数

• bottom – int

• top – int

Sets the range of the validator to only accept integers between bottom and top 包含在内。

PySide2.QtGui.QIntValidator. setTop ( arg__1 ) ¶

参数

arg__1 – int

另请参阅

top()

PySide2.QtGui.QIntValidator. top ( ) ¶

返回类型

int

另请参阅

setTop()

PySide2.QtGui.QIntValidator. topChanged ( top ) ¶

参数

top – int