问题描述
我要用某些值替换Text的文档中大约有10个MERGEFIELD.这是代码.
I have approximately 10 MERGEFIELD in a document that I'm trying to replace the Text with some value. Here's the code.
using (WordprocessingDocument document = WordprocessingDocument.Open(destinationFileName, true))
{
document.ChangeDocumentType(DocumentFormat.OpenXml.WordprocessingDocumentType.Document);
MainDocumentPart docPart = document.MainDocumentPart;
docPart.AddExternalRelationship("http://schemas.openxmlformats.org/officeDocument/2006/relationships/attachedTemplate", new Uri(destinationFileName, UriKind.RelativeOrAbsolute));
docPart.Document.Save();
IEnumerable<FieldChar> fldChars = document.MainDocumentPart.RootElement.Descendants<FieldChar>();
if (fldChars == null) { return; }
string fieldList = string.Empty;
FieldChar fldCharStart = null;
FieldChar fldCharEnd = null;
FieldChar fldCharSep = null;
FieldCode fldCode = null;
string fldContent = String.Empty;
int i = 1;
foreach(var fldChar in fldChars)
{
System.Diagnostics.Debug.WriteLine(i + ": " + fldChar);
i++;
string fldCharPart = fldChar.FieldCharType.ToString();
System.Diagnostics.Debug.WriteLine("Field Char Length: " + fldChar.Count());
System.Diagnostics.Debug.WriteLine("Field Char part: " + fldCharPart);
switch(fldCharPart)
{
case "begin": // start of the field
fldCharStart = fldChar;
System.Diagnostics.Debug.WriteLine("Field Char Start: " + fldCharStart);
// get the field code, which will be an instrText element
// either as sibling or as a child of the parent sibling
fldCode = fldCharStart.Parent.Descendants<FieldCode>().FirstOrDefault();
System.Diagnostics.Debug.WriteLine("Field Code: " + fldCode);
if (fldCode == null)
{
fldCode = fldCharStart.Parent.NextSibling<Run>().Descendants<FieldCode>().FirstOrDefault();
System.Diagnostics.Debug.WriteLine("New Field Code: " + fldCode);
}
if (fldCode != null && fldCode.InnerText.Contains("MERGEFIELD"))
{
fldContent = getFieldValue(query, prescriber, fldCode.InnerText);
fieldList += fldContent + "\n";
System.Diagnostics.Debug.WriteLine("Field content: " + fldContent);
}
break;
case "end": // end of the field
fldCharEnd = fldChar;
System.Diagnostics.Debug.WriteLine("Field char end: " + fldCharEnd);
break;
case "separate": // complex field with text result
fldCharSep = fldChar;
break;
default:
break;
}
if((fldCharStart != null) && (fldCharEnd != null))
{
if(fldCharSep != null)
{
Text elemText = (Text)fldCharSep.Parent.NextSibling().Descendants<Text>().FirstOrDefault();
elemText.Text = fldContent;
System.Diagnostics.Debug.WriteLine("Element text: " + elemText);
// Delete all field chas with their runs
DeleteFieldChar(fldCharStart);
DeleteFieldChar(fldCharEnd);
DeleteFieldChar(fldCharSep);
fldCode.Remove();
}
else
{
Text elemText = new Text(fldContent);
fldCode.Parent.Append(elemText);
fldCode.Remove();
System.Diagnostics.Debug.WriteLine("Element Text !sep: " + elemText);
DeleteFieldChar(fldCharStart);
DeleteFieldChar(fldCharEnd);
DeleteFieldChar(fldCharSep);
}
fldCharStart = null;
fldCharEnd = null;
fldCharSep = null;
fldCode = null;
fldContent = string.Empty;
}
}
System.Diagnostics.Debug.WriteLine("Field list: " + fieldList);
}
它在某种程度上起作用.问题是，当一个段落中有多个字段时.在本文档的一个段落中，我大约有4个合并字段，在此之后的每个段落中，都有一个字段.仅段落中的第一个合并字段将被更新，而段落中的其余字段则保持不变.然后，它移至下一段并寻找该字段.我怎样才能解决这个问题?
It works to some extent. The problem is when there are more than one field in a paragraph. I have about 4 merge fields in one paragraph in this document, and one field in each paragraph after that. Only the first merge field in the paragraph is being updated and the rest fields in the paragraphs is untouched. Then, it moves to the next paragraph and looks for the field. How can I fix this?
推荐答案
看起来您像使简单的Mailmerge替换复杂化了.与其遍历段落，不如获取文档中的所有mailmerge字段并将其替换.
Looks like you are over complicating a simple Mailmerge replacement. Instead of looping through paragraphs you could rather get all mailmerge fields within a document and replace them.
private const string FieldDelimeter = " MERGEFIELD ";
foreach (FieldCode field in doc.MainDocumentPart.RootElement.Descendants<FieldCode>())
{
var fieldNameStart = field.Text.LastIndexOf(FieldDelimeter, System.StringComparison.Ordinal);
var fieldName = field.Text.Substring(fieldNameStart + FieldDelimeter.Length).Trim();
foreach (Run run in doc.MainDocumentPart.Document.Descendants<Run>())
{
foreach (Text txtFromRun in run.Descendants<Text>().Where(a => a.Text == "«" + fieldName + "»"))
{
txtFromRun.Text = "Replace what the merge field here";
}
}
}
doc.MainDocumentPart.Document.Save();
doc的类型为WordprocessingDocument.
doc is of type WordprocessingDocument.
这将替换所有合并字段，而不管段落中字段的数量如何.
This will replace all merge fields regardless of the amount of fields in a paragraph.
这篇关于C#中的Openxml仅更新段落中的第一个MERGEFIELD的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！