验证单元格

数据验证器可以应用于单元格区域，但不能强制或计算。范围不必是连续的：例如，“a1 b2:b5”包含a1，单元格b2到b5，但不包含a2或b2。

实例

>>> from openpyxl import Workbook
>>> from openpyxl.worksheet.datavalidation import DataValidation
>>>
>>> # Create the workbook and worksheet we'll be working with
>>> wb = Workbook()
>>> ws = wb.active
>>>
>>> # Create a data-validation object with list validation
>>> dv = DataValidation(type="list", formula1='"Dog,Cat,Bat"', allow_blank=True)
>>>
>>> # Optionally set a custom error message
>>> dv.error ='Your entry is not in the list'
>>> dv.errorTitle = 'Invalid Entry'
>>>
>>> # Optionally set a custom prompt message
>>> dv.prompt = 'Please select from the list'
>>> dv.promptTitle = 'List Selection'
>>>
>>> # Add the data-validation object to the worksheet
>>> ws.add_data_validation(dv)

>>> # Create some cells, and add them to the data-validation object
>>> c1 = ws["A1"]
>>> c1.value = "Dog"
>>> dv.add(c1)
>>> c2 = ws["A2"]
>>> c2.value = "An invalid value"
>>> dv.add(c2)
>>>
>>> # Or, apply the validation to a range of cells
>>> dv.add('B1:B1048576') # This is the same as for the whole of column B
>>>
>>> # Check with a cell is in the validator
>>> "B4" in dv
True

注解

保存工作簿时，将忽略没有任何单元格范围的验证。

其他验证示例

任意整数：：

dv = DataValidation(type="whole")

大于100的整数：

dv = DataValidation(type="whole",
                    operator="greaterThan",
                    formula1=100)

任何十进制数：：：

dv = DataValidation(type="decimal")

0到1之间的任何十进制数：：：

dv = DataValidation(type="decimal",
                    operator="between",
                    formula1=0,
                    formula2=1)

任何日期：：

dv = DataValidation(type="date")

或时间：：

dv = DataValidation(type="time")

最多15个字符的任何字符串：：：

dv = DataValidation(type="textLength",
                    operator="lessThanOrEqual"),
                    formula1=15)

单元格范围验证：：：

from openpyxl.utils import quote_sheetname
dv = DataValidation(type="list",
                    formula1="{0}!$B$1:$B$10".format(quote_sheetname(sheetname))
                    )

习惯规则：：

dv = DataValidation(type="custom",
                    formula1"=SOMEFORMULA")

注解

有关自定义规则，请参阅http://www.contextures.com/xldataval07.html。