如何在openpyXL中为特定列（D）添加下拉按钮并在选择一个选项时更改特定单元格的背景颜色

Question

Using OpenPyXl , can we have privilege to add drop down button (High and Low) like we have in XlsxWriter data_validation() ; and add background color Green to entire row when High is selected and Red if Low is selected?

In XlsxWriter we have:

format_green = workbook.add_format({'bg_color': 'green'})
format_red = workbook.add_format({'bg_color': 'red'})

# Apply the data validation rule
worksheet.data_validation('D2:D5', {'validate': 'list',
                            'source': ['High','Low']})

# Apply the conditional formating rules
worksheet.conditional_format('A2:D5', {'type': 'formula',
                            'criteria': '=$D2="High"',
                            'format': format_green})

worksheet.conditional_format('A2:D5', {'type': 'formula',
                            'criteria': '=$D2="Low"',

                            'format': format_red})

Do we have similar functionality when using OpenPyXl ?

Answer 1

Yes, there is both Conditional Formatting and Data Validation in OpenPyXl .

Here is an example of Conditional Formatting:

import openpyxl
from openpyxl import *
from openpyxl.formatting import Rule
from openpyxl.styles import Font, PatternFill, Border, Alignment
from openpyxl.formatting.rule import CellIsRule

wb = load_workbook("./document.xlsx")
ws = wb.active

ws.conditional_formatting.add('A2:D5', CellIsRule(operator='lessThan', formula=['0'],font = Font(color = '00FF0000')))

wb.save('document.xlsx')