我似乎找不到任何有关如何使用 Open XML SDK 2.0 在 Excel 2007 中向单元格添加超链接的文档或代码示例。我正在使用以下代码，但是我缺少一个步骤吗？
WorksheetPart workSheetPart = ExcelUtilities.GetWorkSheetPart(mWorkBookPart, "Program");
workSheetPart.AddHyperlinkRelationship(new Uri("http://www.google.com", UriKind.Absolute), true);
workSheetPart.Worksheet.Save();
mWorkBookPart.Workbook.Save();
然后，当我尝试打开 Excel 文档时，它说文件已损坏，因为找不到超链接的关系 ID。您如何设置或创建关系 ID？
【问题讨论】：
标签： openxml openxml-sdk spreadsheetml
另一种可能性（我使用过的）是对 Excel 使用 HYPERLINK 公式。我需要在每个单元格中创建单独的超链接，但单元格必须显示不同的文本，（我必须在单元格中显示跟踪号，但每个跟踪号都有一个指向承运人站点的超链接，并且必须处理多个承运人）。
一旦我实例化了一个单独的单元格，公式就会以这种方式应用于每个单元格（无疑有很多方法）：
// ...
Cell cell1 = new Cell(){ CellReference = "A1", StyleIndex = (UInt32Value)1U, DataType = CellValues.InlineString };
CellValue cellValue1 = new CellValue();
CellFormula cellFormula1 = new CellFormula() { Space = SpaceProcessingModeValues.Preserve };
cellFormula1.Text = @"HYPERLINK(""http://www.theclash.com"", ""Radio Clash"")";
cellValue1.Text = "Radio Clash";
cell1.Append(cellFormula1);
cell1.Append(cellValue1);
// append cell, etc.
通过这种方式，我能够为每个单元格创建单独的超链接和文本。顺便说一句，除非您引用带有蓝色字体的样式，否则链接将以默认字体颜色显示。
希望这会有所帮助。
【讨论】：
我能够使用System.IO.Packaging 代码向单元格添加超链接：
private void HyperlinkCreate(PackagePart part, XmlNamespaceManager nsm, XmlNode _cellElement, string CellAddress)
{
Uri _hyperlink = new Uri("http://www.yahoo.com");
XmlNode linkParent = _cellElement.OwnerDocument.SelectSingleNode("//d:hyperlinks", nsm);
if (linkParent == null)
{
// create the hyperlinks node
linkParent = _cellElement.OwnerDocument.CreateElement("hyperlinks", @"http://schemas.openxmlformats.org/spreadsheetml/2006/main");
XmlNode prevNode = _cellElement.OwnerDocument.SelectSingleNode("//d:conditionalFormatting", nsm);
if (prevNode == null)
{
prevNode = _cellElement.OwnerDocument.SelectSingleNode("//d:mergeCells", nsm);
if (prevNode == null)
{
prevNode = _cellElement.OwnerDocument.SelectSingleNode("//d:sheetData", nsm);
}
}
_cellElement.OwnerDocument.DocumentElement.InsertAfter(linkParent, prevNode);
}
string searchString = string.Format("./d:hyperlink[@ref = '{0}']", CellAddress);
XmlElement linkNode = (XmlElement)linkParent.SelectSingleNode(searchString, nsm);
XmlAttribute attr;
if (linkNode == null)
{
linkNode = _cellElement.OwnerDocument.CreateElement("hyperlink", @"http://schemas.openxmlformats.org/spreadsheetml/2006/main");
// now add cell address attribute
linkNode.SetAttribute("ref", CellAddress);
linkParent.AppendChild(linkNode);
}
attr = (XmlAttribute)linkNode.Attributes.GetNamedItem("id", @"http://schemas.openxmlformats.org/officeDocument/2006/relationships");
if (attr == null)
{
attr = _cellElement.OwnerDocument.CreateAttribute("r", "id", @"http://schemas.openxmlformats.org/officeDocument/2006/relationships");
linkNode.Attributes.Append(attr);
}
PackageRelationship relationship = null;
string relID = attr.Value;
if (relID == "")
relationship = part.CreateRelationship(_hyperlink, TargetMode.External, @"http://schemas.openxmlformats.org/officeDocument/2006/relationships/hyperlink");
else
{
relationship = part.GetRelationship(relID);
if (relationship.TargetUri != _hyperlink)
relationship = part.CreateRelationship(_hyperlink, TargetMode.External, @"http://schemas.openxmlformats.org/officeDocument/2006/relationships/hyperlink");
}
attr.Value = relationship.Id;
}
然后我使用 Open XML SDK 2.0 翻译了这段代码，但它不起作用。似乎AddHyperlinkRelationship 方法实际上并没有将关系添加到 .rels 文件中。我不知道为什么，但这对我来说确实是一个错误。
private void HyperlinkCreate(PackagePart part, XmlNamespaceManager nsm, XmlNode _cellElement, string CellAddress)
{
WorksheetPart workSheetPart = ExcelUtilities.GetWorkSheetPart(mWorkBookPart, "Program");
Uri hyperlinkUri = new Uri("http://www.yahoo.com", UriKind.Absolute);
Hyperlinks hyperlinks = workSheetPart.Worksheet.Descendants<Hyperlinks>().FirstOrDefault();
// Check to see if the <x:hyperlinks> element exists; if not figure out
// where to insert it depending on which elements are present in the Worksheet
if (hyperlinks == null)
{
// Create the hyperlinks node
hyperlinks = new Hyperlinks();
OpenXmlCompositeElement prevElement = workSheetPart.Worksheet.Descendants<ConditionalFormatting>().FirstOrDefault();
if (prevElement == null)
{
prevElement = workSheetPart.Worksheet.Descendants<MergeCells>().FirstOrDefault();
if (prevElement == null)
{
// No FirstOrDefault needed since a Worksheet requires SheetData or the excel doc will be corrupt
prevElement = workSheetPart.Worksheet.Descendants<SheetData>().First();
}
}
workSheetPart.Worksheet.InsertAfter(hyperlinks, prevElement);
}
Hyperlink hyperlink = hyperlinks.Descendants<Hyperlink>().Where(r => r.Reference.Equals(CellAddress)).FirstOrDefault();
if (hyperlink == null)
{
hyperlink = new Hyperlink() { Reference = CellAddress, Id = string.Empty };
}
HyperlinkRelationship hyperlinkRelationship = null;
string relId = hyperlink.Id;
if (relId.Equals(string.Empty))
{
hyperlinkRelationship = workSheetPart.AddHyperlinkRelationship(hyperlinkUri, true);
}
else
{
hyperlinkRelationship = workSheetPart.GetReferenceRelationship(relId) as HyperlinkRelationship;
if (!hyperlinkRelationship.Uri.Equals(hyperlinkUri))
{
hyperlinkRelationship = workSheetPart.AddHyperlinkRelationship(hyperlinkUri, true);
}
}
hyperlink.Id = hyperlinkRelationship.Id;
hyperlinks.AppendChild<Hyperlink>(hyperlink);
workSheetPart.Worksheet.Save();
}
【讨论】：
您应该将其添加到接受超链接的对象，例如单元格，而不是工作表。像这样的东西应该适合你：
using DocumentFormat.OpenXml.Spreadsheet;
using DocumentFormat.OpenXml;
namespace GeneratedCode
{
public class GeneratedClass
{
// Creates an Worksheet instance and adds its children.
public Worksheet GenerateWorksheet()
{
Worksheet worksheet1 = new Worksheet(){ MCAttributes = new MarkupCompatibilityAttributes(){ Ignorable = "x14ac" } };
worksheet1.AddNamespaceDeclaration("r", "http://schemas.openxmlformats.org/officeDocument/2006/relationships");
worksheet1.AddNamespaceDeclaration("mc", "http://schemas.openxmlformats.org/markup-compatibility/2006");
worksheet1.AddNamespaceDeclaration("x14ac", "http://schemas.microsoft.com/office/spreadsheetml/2009/9/ac");
SheetDimension sheetDimension1 = new SheetDimension(){ Reference = "A1" };
SheetViews sheetViews1 = new SheetViews();
SheetView sheetView1 = new SheetView(){ TabSelected = true, WorkbookViewId = (UInt32Value)0U };
sheetViews1.Append(sheetView1);
SheetFormatProperties sheetFormatProperties1 = new SheetFormatProperties(){ DefaultRowHeight = 14.4D, DyDescent = 0.3D };
SheetData sheetData1 = new SheetData();
Row row1 = new Row(){ RowIndex = (UInt32Value)1U, Spans = new ListValue<StringValue>() { InnerText = "1:1" }, DyDescent = 0.3D };
Cell cell1 = new Cell(){ CellReference = "A1", StyleIndex = (UInt32Value)1U, DataType = CellValues.SharedString };
CellValue cellValue1 = new CellValue();
cellValue1.Text = "0";
cell1.Append(cellValue1);
row1.Append(cell1);
sheetData1.Append(row1);
Hyperlinks hyperlinks1 = new Hyperlinks();
Hyperlink hyperlink1 = new Hyperlink(){ Reference = "A1", Id = "rId1" };
hyperlinks1.Append(hyperlink1);
PageMargins pageMargins1 = new PageMargins(){ Left = 0.7D, Right = 0.7D, Top = 0.75D, Bottom = 0.75D, Header = 0.3D, Footer = 0.3D };
worksheet1.Append(sheetDimension1);
worksheet1.Append(sheetViews1);
worksheet1.Append(sheetFormatProperties1);
worksheet1.Append(sheetData1);
worksheet1.Append(hyperlinks1);
worksheet1.Append(pageMargins1);
return worksheet1;
}
}
}
【讨论】：
worksheet1的初始化更改为您的工作表，并更改其他初始化项，例如创建新单元格。将引用设置为您已有的内容。
最简单的方法是使用超链接公式，但链接默认不是蓝色的，这就是设置 styleIndex 的原因。
private Cell BuildHyperlinkCell(string url) =>
new Cell
{
DataType = new EnumValue<CellValues>(CellValues.String),
CellFormula = new CellFormula($"HyperLink(\"{url}\")"),
StyleIndex = 4u
};
【讨论】：