我用axslx创建了一个excel。 一行应该是彩色的。但是,如果我这样做,我会删除日期的日期格式。
我做过一些尝试的最小例子:
require 'axlsx'
Axlsx::Package.new do |p|
p.workbook.add_worksheet(:name => "test") do |ws|
style1 = ws.styles.add_style(:bg_color => "EF0920", :fg_color => "FFFFFF")
ws.add_row [ Date.today, "No style defined --ok"]
ws.add_row [ Date.today, "Style with colors --The date is no date any longer"], :style => style1
ws.add_row [ Date.today, "Style with colors, except date -- ok, but not colored"], :style => [nil,style1]
ws.add_row [ Date.today, "Style with colors and types --The date is no date any longer"], :style => style1, :types => [:date,:string]
ws.add_row [ Date.today, "Style with colors and types --The date is no date any longer"], :style => [style1,style1], :types => [:date,:string]
ws.add_row [ Date.today, "No Style -- ok, but not colored"], :types => [:date,:string]
end
p.serialize('test.xlsx')
end
结果是:
如何在不丢失数据信息的情况下为日期单元格着色?
答案 0 :(得分:1)
您还需要指定数字格式,以便您的样式看起来像
style1 = ws.styles.add_style(:bg_color => "EF0920", :fg_color => "FFFFFF", :format_code => "dd.mm.yyyy")
添加样式时,它将覆盖默认样式和所有格式。例如
ws.add_row [ Date.today, "Style with colors --The date is no date any longer"], :style => [style1,nil]
这将生成一个红色日期,其格式与其他行类似,并且没有填充列B.
此样式仅适用于日期,因此如果您想要整个列,我会推荐类似
的内容red_style_h = {:bg_color => "EF0920", :fg_color => "FFFFFF"}
red_date_h = red_style_h.merge(:format_code => "dd.mm.yyyy")
red_style = ws.styles.add_style(red_style_h)
red_date_style = ws.styles.add_style(red_date_h)
然后将行设置为
ws.add_row [ Date.today, "Style with colors --The date is no date any longer"], :style => [red_date_style,red_style]
这将产生一个红色行(A列和B列),其日期格式与其他行相同。
还有numFmts
和global named constants NUM_FMT_PERCENTAGE
,NUM_FMT_YYYYMMDD
,NUM_FMT_YYYYMMDDHHMMSS
等可用的预定义样式。
在定义许多不同的格式时,我发现使用YML文件最简单,然后解析它以定义样式,例如。
red_style:&red
bg_color: "EF0920"
fg_color: "FFFFFF"
red_date:
<<: *red
format_code: dd.mm.yyyy
然后像
class MyStylizedSheet < ::Axlsx::Workbook
STYLES_FILE = YAML.load(File.read(YOUR_YML_FILE)).deep_symbolize_keys
PREDEFINED_STYLES = {}
def initialize(options={})
super
initialize_with_styles
end
private
def initialize_with_styles
STYLES_FILE.each do |k,v|
PREDEFINED_STYLES[k] = @styles.add_style(v)
end
end
end
然后,您可以通过PREDEFINED_STYLES
常量从自定义类和引用样式启动工作簿。