OpenXML Pagesetup(PrintOptions,pageMargins,Orientation,headerfooter)错误

时间:2018-12-11 22:28:14

标签: excel openxml page-setup headerfooter

我有一个c#程序,可以生成格式化的Excel报告。由于Office的升级,我将程序转换为使用Microsoft Excel 16对象库。除了pagesetup类之外,其他一切都很好。新的DLL中不再支持Pagesetup类。由于该报告的代码很广泛,所以我决定最后使用OpenXML修改Excel文件。

我通过将文件的后缀更改为zip来研究原始的OpenXML。下面是与pagesetup类相对应的原始OpenXML。

<printOptions horizontalCentered="1"/>
<pageMargins left="0.5" right="0.5" top="0.75" bottom="0.75" header="0.3" footer="0.3"/>
<pageSetup orientation="landscape" r:id="rId1"/>
<headerFooter><oddHeader>&amp;L&amp;"Arial Narrow,Bold"&amp;8 9825 Fairmount Drive SE
&amp;R&amp;"Arial Narrow,Bold"&amp;8Ref. No.: 10-219</oddHeader>
<oddFooter>&amp;C&amp;"Arial Narrow,Regular"&amp;8Page 1 of 2</oddFooter></headerFooter>

<headerFooter>
<oddHeader>&amp;R&amp;8&amp;B&amp;"Arial Narrow"Ref. No.: 10-219
&amp;L&amp;8&amp;B&amp;"Arial Narrow"9825 Fairmount Drive SE</oddHeader>
<oddFooter>&amp;C&amp;8&amp;"Arial Narrow"Page 2 of 2</oddFooter></headerFooter>

但是,在用OpenXML函数格式化Excel文件之后,Excel告诉我文件中存在OpenXML代码错误。下面是从修订后的文件中提取的内容:

<x:pageMargins left="0.5" right="0.5" top="0.75" bottom="0.75" header="0.3" footer="0.3" />
<x:printOptions horizontalCentered="1" />
<x:pageSetup orientation="landscape" />
<x:headerFooter differentOddEven="0">
<x:oddHeader>&amp;L&amp;B&amp;"Arial Narrow"&amp;9825 Fairmount Drive SE&amp;R&amp;B&amp;"Arial Narrow"&amp;8Ref. No.: 10-219</x:oddHeader>
<x:oddFooter>&amp;C&amp;"Arial Narrow"&amp;8Page &amp;P of &amp;N</x:oddFooter></x:headerFooter>

似乎在每个标签的开头都放置了x:和/ x:。下面是我的OpenXML函数。

public void formatLandscapeReport(String fileName, String jobNumber, String Address) {
        using (SpreadsheetDocument document = SpreadsheetDocument.Open(fileName, true))
    {
        WorkbookPart workbookpart = document.WorkbookPart;
        IEnumerable<String> worksheetIds = workbookpart.Workbook.Descendants<Sheet>().Select(w => w.Id.Value);
        WorksheetPart worksheetpart = null;
        foreach (String worksheetId in worksheetIds)
        {
            worksheetpart = ((WorksheetPart)workbookpart.GetPartById(worksheetId));
            PrintOptions po = new PrintOptions();
            po.HorizontalCentered = true;
            worksheetpart.Worksheet.AppendChild(po);

            PageMargins pm = worksheetpart.Worksheet.Descendants<PageMargins>().FirstOrDefault();
            if (pm == null)
            {
                pm = new PageMargins();
                worksheetpart.Worksheet.AppendChild(pm);
            }
            pm.Left = .5D;
            pm.Right = .5D;
            pm.Top = .75D;
            pm.Bottom = .75D;

            PageSetup pagesetup = worksheetpart.Worksheet.Descendants<PageSetup>().FirstOrDefault();
            if (pagesetup == null)
            {
                pagesetup = new PageSetup();
                worksheetpart.Worksheet.AppendChild(pagesetup);
            }

            pagesetup.Orientation = OrientationValues.Landscape;

            // Header and Footer
            HeaderFooter hf = new HeaderFooter();
            hf.DifferentOddEven = false;
            OddHeader ohdr = new OddHeader();
            OddFooter oftr = new OddFooter();

            ohdr.Text= "&L&B&\"Arial Narrow\"&" + Address +"&R&B&\"Arial Narrow\"&8Ref. No.: " + jobNumber;
            oftr.Text = "&C&\"Arial Narrow\"&8Page &P of &N";
            hf.Append(ohdr);
            hf.Append(oftr);
            worksheetpart.Worksheet.Append(hf);

            worksheetpart.Worksheet.Save();
        } // foreach
        workbookpart.Workbook.Save();
    } // using
} //formatLandscapeReport

如果有人可以让我了解我做错了什么,将不胜感激。

谢谢

卡门

1 个答案:

答案 0 :(得分:0)

ECMA模式的相关部分是这样的:

<xsd:sequence>
    ...
    <xsd:element name="printOptions" type="CT_PrintOptions" minOccurs="0" maxOccurs="1"/>
    <xsd:element name="pageMargins" type="CT_PageMargins" minOccurs="0" maxOccurs="1"/>
    <xsd:element name="pageSetup" type="CT_PageSetup" minOccurs="0" maxOccurs="1"/>
    <xsd:element name="headerFooter" type="CT_HeaderFooter" minOccurs="0" maxOccurs="1"/>
    ....
<xsd:sequence>

请注意,此构造定义为sequence,因此顺序很重要。

在您的原始文件中,顺序是正确的,printOptions出现在pageMargins之前是,但是在错误的文件中,顺序是错误的。

交换订单应该可以解决您的问题,因此问题变为“为什么订单错了?”。

这里的问题很可能是您的Worksheet已经包含一个PageMargins项目,因此在它们之后添加了PrintOptions

要解决此问题,您始终可以先执行PageMargins代码,然后使用InsertBefore方法在PrintOptions之前插入PageMargins

PageMargins pm = worksheetpart.Worksheet.Descendants<PageMargins>().FirstOrDefault();
if (pm == null)
{
    pm = new PageMargins();
    worksheetpart.Worksheet.AppendChild(pm);
}
pm.Left = .5D;
pm.Right = .5D;
pm.Top = .75D;
pm.Bottom = .75D;

worksheetpart = ((WorksheetPart)workbookpart.GetPartById(worksheetId));
PrintOptions po = new PrintOptions();
po.HorizontalCentered = true;
//the PrintOptions must be before the PageMargins
worksheetpart.Worksheet.InsertAfter(po, pm);

x:部分只是一个名称空间。我认为这不是造成您问题的原因。