您好我用下面的方法来应用自动筛选：

Hi I use the below method to apply an AutoFilter :

public static void ApplyAutofilter(string fileName, string sheetName, string reference)
        {
            using (SpreadsheetDocument document = SpreadsheetDocument.Open(fileName, true))
            {
                IEnumerable<Sheet> sheets = document.WorkbookPart.Workbook.GetFirstChild<Sheets>().Elements<Sheet>().Where(s => s.Name == sheetName);
                var arrSheets = sheets as Sheet[] ?? sheets.ToArray();

                string relationshipId = arrSheets.First().Id.Value;
                var worksheetPart = (WorksheetPart)document.WorkbookPart.GetPartById(relationshipId);

                var autoFilter = new AutoFilter() { Reference = reference };
                worksheetPart.Worksheet.Append(autoFilter);

                worksheetPart.Worksheet.Save();
            }
        }

和我有这个简单的Excel工作表：

And I have this simple Excel sheet:

的事情是，当我把这种方法为：

The thing is when I call this method as:

ApplyAutofilter(@".\Test.xlsx", "Foo", "A0:A200");

或

ApplyAutofilter(@".\Test.xlsx", "Foo", "A1:A200");

在未应用滤镜，当我尝试后，打开该文件损坏：

The filter is not applied and the file becomes corrupted when I try to open it after:

问：不知道如何应用此autofiler到一个Excel工作表，而不会破坏它

QUESTION: Any idea how to apply this autofiler to an excel sheet without corrupting it?

推荐答案

这是因为中的其中的你正在写在了自动筛选元素XML。我打开一个文件，我已经在运行code和的打开XML生产力工具。这表明，该误差为

This happens because of where you are writing the autoFilter element in the XML. I opened a file that I had run your code on and opened it in the Open XML Productivity Tool. This showed that the error was

纵观ECMA-376标准的这里的XML为工作表是这样的：

Looking at the ECMA-376 standard from here the XML for a Worksheet looks like this:

<xsd:complexType name="CT_Worksheet">
  <xsd:sequence>
    <xsd:element name="sheetPr" type="CT_SheetPr" minOccurs="0" maxOccurs="1"/>
    <xsd:element name="dimension" type="CT_SheetDimension" minOccurs="0" maxOccurs="1"/>
    <xsd:element name="sheetViews" type="CT_SheetViews" minOccurs="0" maxOccurs="1"/>
    <xsd:element name="sheetFormatPr" type="CT_SheetFormatPr" minOccurs="0" maxOccurs="1"/>
    <xsd:element name="cols" type="CT_Cols" minOccurs="0" maxOccurs="unbounded"/>
    <xsd:element name="sheetData" type="CT_SheetData" minOccurs="1" maxOccurs="1"/>
    <xsd:element name="sheetCalcPr" type="CT_SheetCalcPr" minOccurs="0" maxOccurs="1"/>
    <xsd:element name="sheetProtection" type="CT_SheetProtection" minOccurs="0" maxOccurs="1"/>
    <xsd:element name="protectedRanges" type="CT_ProtectedRanges" minOccurs="0" maxOccurs="1"/>
    <xsd:element name="scenarios" type="CT_Scenarios" minOccurs="0" maxOccurs="1"/>
    <xsd:element name="autoFilter" type="CT_AutoFilter" minOccurs="0" maxOccurs="1"/>
    <xsd:element name="sortState" type="CT_SortState" minOccurs="0" maxOccurs="1"/>
    <xsd:element name="dataConsolidate" type="CT_DataConsolidate" minOccurs="0" maxOccurs="1"/>
    <xsd:element name="customSheetViews" type="CT_CustomSheetViews" minOccurs="0" maxOccurs="1"/>
    <xsd:element name="mergeCells" type="CT_MergeCells" minOccurs="0" maxOccurs="1"/>
    <xsd:element name="phoneticPr" type="CT_PhoneticPr" minOccurs="0" maxOccurs="1"/>
    <xsd:element name="conditionalFormatting" type="CT_ConditionalFormatting" minOccurs="0" maxOccurs="unbounded"/>
    <xsd:element name="dataValidations" type="CT_DataValidations" minOccurs="0" maxOccurs="1"/>
    <xsd:element name="hyperlinks" type="CT_Hyperlinks" minOccurs="0" maxOccurs="1"/>
    <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:element name="rowBreaks" type="CT_PageBreak" minOccurs="0" maxOccurs="1"/>
    <xsd:element name="colBreaks" type="CT_PageBreak" minOccurs="0" maxOccurs="1"/>
    <xsd:element name="customProperties" type="CT_CustomProperties" minOccurs="0" maxOccurs="1"/>
    <xsd:element name="cellWatches" type="CT_CellWatches" minOccurs="0" maxOccurs="1"/>
    <xsd:element name="ignoredErrors" type="CT_IgnoredErrors" minOccurs="0" maxOccurs="1"/>
    <xsd:element name="smartTags" type="CT_SmartTags" minOccurs="0" maxOccurs="1"/>
    <xsd:element name="drawing" type="CT_Drawing" minOccurs="0" maxOccurs="1"/>
    <xsd:element name="drawingHF" type="CT_DrawingHF" minOccurs="0" maxOccurs="1"/>
    <xsd:element name="picture" type="CT_SheetBackgroundPicture" minOccurs="0" maxOccurs="1"/>
    <xsd:element name="oleObjects" type="CT_OleObjects" minOccurs="0" maxOccurs="1"/>
    <xsd:element name="controls" type="CT_Controls" minOccurs="0" maxOccurs="1"/>
    <xsd:element name="webPublishItems" type="CT_WebPublishItems" minOccurs="0" maxOccurs="1"/>
    <xsd:element name="tableParts" type="CT_TableParts" minOccurs="0" maxOccurs="1"/>
    <xsd:element name="extLst" type="CT_ExtensionList" minOccurs="0" maxOccurs="1"/>
  </xsd:sequence>
</xsd:complexType>

请注意，这是一个序这样的项目的顺序很重要。在自动筛选元素上面我的样本文件中的 pageMargins 元素，这就是违背了上述模式之后加入。

Notice that it's a sequence so the order of the items matters. In my sample file above the autoFilter element was added after the pageMargins element which is contrary to the above schema.

更改code写的自动筛选元素，以正确的地方修复您的code。我不知道这是否是最effecient的方式，但这应该工作。它本质上是工作倒退了工作簿的子元素，直到它找到的第一个元素是，自动筛选可以在。一旦它发现它使用了 InsertAfter 方法插入自动筛选到正确的地方：

Changing the code to write the autoFilter element to the correct place fixes your code. I'm not sure if this is the most effecient way but this should work. It is essentially working backwards up the child elements of the workbook until it finds the first element that the autoFilter can be after. Once it finds that it uses the InsertAfter method to insert the autoFilter into the correct place:

public static void ApplyAutofilter(string fileName, string sheetName, string reference)
{
    using (SpreadsheetDocument document = SpreadsheetDocument.Open(fileName, true))
    {
        IEnumerable<Sheet> sheets = document.WorkbookPart.Workbook.GetFirstChild<Sheets>().Elements<Sheet>().Where(s => s.Name == sheetName);
        var arrSheets = sheets as Sheet[] ?? sheets.ToArray();

        string relationshipId = arrSheets.First().Id.Value;
        var worksheetPart = (WorksheetPart)document.WorkbookPart.GetPartById(relationshipId);

        var autoFilter = new AutoFilter() { Reference = reference };
        OpenXmlElement preceedingElement = GetPreceedingElement(worksheetPart);
        worksheetPart.Worksheet.InsertAfter(autoFilter, preceedingElement);

        worksheetPart.Worksheet.Save();
    }
}

public static OpenXmlElement GetPreceedingElement(WorksheetPart worksheetPart)
{
    List<Type> elements = new List<Type>()
    {
        typeof(Scenarios),
        typeof(ProtectedRanges),
        typeof(SheetProtection),
        typeof(SheetCalculationProperties),
        typeof(SheetData)
    };

    OpenXmlElement preceedingElement = null;
    foreach (var item in worksheetPart.Worksheet.ChildElements.Reverse())
    {
        if (elements.Contains(item.GetType()))
        {
            preceedingElement = item;
            break;
        }
    }

    return preceedingElement;
}