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我正在使用 LongTables 来显示表格数据,但是当行高超过页面高度时,它会崩溃

  File "c:\edat\19_with_edm\fiods\..\fiods\reporting\pdf_utils.py", line 1497, in build_table
    doc.build(story, canvasmaker=NumberedCanvas)

  File "C:\Python27\lib\site-packages\reportlab\platypus\doctemplate.py", line 880, in build
    self.handle_flowable(flowables)

  File "C:\Python27\lib\site-packages\reportlab\platypus\doctemplate.py", line 793, in handle_flowable
    raise LayoutError(ident)

LayoutError: Flowable <LongTable@0x018DB0A8 30 rows x 20 cols> with cell(0,0) containing
'Eq\nLvl\nD'(756.0 x 967.6) too large on page 2 in frame 'edat_table_frame'(756.0 x 504.0*) of template 'edat_page_template'
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1 回答 1

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该错误看起来像是您尝试格式化表格,如果单页中的框架超出限制。我用'Table'和'LongTable'测试了一个代码,只要你不尝试同时格式化第一页和第二页,它就会在多个页面上显示数据。

示例代码:

#!/usr/bin/env python
# -*- coding: utf-8 -*-

from reportlab.platypus import SimpleDocTemplate, Table, LongTable, TableStyle, BaseDocTemplate, Frame, Paragraph, NextPageTemplate, PageTemplate
from reportlab.lib.pagesizes import letter, inch
from reportlab.lib import colors

def testPdf():
    doc = BaseDocTemplate("testpdf.pdf",pagesize=letter,
                        rightMargin=72,leftMargin=72,
                        topMargin=72,bottomMargin=18, showBoundary=True)
width, height = letter
print width 
print height

elements = []
datas = []
for x in range(1,50):
    datas.append(
        [x,x+1]
    )
t=LongTable(datas)

tTableStyle=[
    ('INNERGRID', (0,0), (-1,-1), 0.25, colors.black),
    ('BOX', (0,0), (-1,-1), 0.25, colors.black),
  ]
t.setStyle(TableStyle(tTableStyle))
elements.append(t)

frameT = Frame(doc.leftMargin, doc.bottomMargin, doc.width, doc.height, id='normal')

doc.addPageTemplates([PageTemplate(id='OneCol',frames=frameT)])

doc.build(elements)

if __name__ == '__main__':
    testPdf()

如果你格式化表格让我们说:

tTableStyle=[
    ('SPAN',(0,0),(0,38), #span over the frame limit
    ('INNERGRID', (0,0), (-1,-1), 0.25, colors.black),
    ('BOX', (0,0), (-1,-1), 0.25, colors.black),
  ]

然后你会遇到这个错误。我想说可能最好的方法是手动格式化表格,但我希望有更好的解决方案。

于 2012-04-20T11:08:46.173 回答