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[英]Editing & saving .docx in ASP.NET program using OpenXML & MemoryStream
[英]How to open docx file in ASP.NET MVC project using openxml for overwriting some text
我已經搜索了很多解決方案,但找不到任何解決方案。
我的 MVC 項目文件夾中有一個 .docx 文件,我想打開它來覆蓋一些文本,但我無法這樣做。
在我的項目文件夾中,我有一個Template
文件夾,在這個文件夾中有一個我想要打開的genrated.docx
文件。 這是我的代碼:
using (WordprocessingDocument doc = WordprocessingDocument.Open
(@"~/Template/genrated.docx",true))
{
var body = doc.MainDocumentPart.Document.Body;
var paras = body.Elements<Paragraph>();
foreach (var para in paras)
{
foreach (var run in para.Elements<Run>())
{
foreach (var text in run.Elements<Text>())
{
if (text.Text.Contains("to-replace"))
{
text.Text = text.Text.Replace("to-replace", "replace-with");
run.AppendChild(new Break());
}
}
}
}
}
請在這件事上給予我幫助...
您替換文本的簡單方法僅適用於簡單情況。 不幸的是,一旦您使用 Microsoft Word 編輯模板,您的“要替換”文本可能會在多次運行中拆分。 這意味着如果您僅在單個Text
實例中查找文本,則無法找到“要替換”的Text
。
下面的單元測試演示了通過創建一個包含兩個段落的文檔,一個段落有一個帶有“要替換”文本的單個Text
實例,另一個是將相同的文本拆分為兩個Run
和Text
實例。
using System.Collections.Generic;
using System.IO;
using System.Linq;
using DocumentFormat.OpenXml;
using DocumentFormat.OpenXml.Packaging;
using DocumentFormat.OpenXml.Wordprocessing;
using Xunit;
namespace CodeSnippets.Tests.OpenXml.Wordprocessing
{
public class SimplisticTextReplacementTests
{
private const string ToReplace = "to-replace";
private const string ReplaceWith = "replace-with";
private static MemoryStream CreateWordprocessingDocument()
{
var stream = new MemoryStream();
const WordprocessingDocumentType type = WordprocessingDocumentType.Document;
using WordprocessingDocument wordDocument = WordprocessingDocument.Create(stream, type);
MainDocumentPart mainDocumentPart = wordDocument.AddMainDocumentPart();
mainDocumentPart.Document =
new Document(
new Body(
new Paragraph(
new Run(
new Text(ToReplace))),
new Paragraph(
new Run(
new Text("to-")),
new Run(
new Text("replace")))));
return stream;
}
private static void ReplaceText(MemoryStream stream)
{
using WordprocessingDocument doc = WordprocessingDocument.Open(stream, true);
Body body = doc.MainDocumentPart.Document.Body;
IEnumerable<Paragraph> paras = body.Elements<Paragraph>();
foreach (Paragraph para in paras)
{
foreach (Run run in para.Elements<Run>())
{
foreach (Text text in run.Elements<Text>())
{
if (text.Text.Contains(ToReplace))
{
text.Text = text.Text.Replace(ToReplace, ReplaceWith);
run.AppendChild(new Break());
}
}
}
}
}
[Fact]
public void SimplisticTextReplacementOnlyWorksInSimpleCases()
{
// Arrange.
using MemoryStream stream = CreateWordprocessingDocument();
using (WordprocessingDocument wordDocument = WordprocessingDocument.Open(stream, false))
{
Document document = wordDocument.MainDocumentPart.Document;
Paragraph firstParagraph = document.Descendants<Paragraph>().First();
Assert.Equal(ToReplace, firstParagraph.InnerText);
Assert.Contains(firstParagraph.Descendants<Text>(), t => t.Text == ToReplace);
Paragraph lastParagraph = document.Descendants<Paragraph>().Last();
Assert.Equal(ToReplace, lastParagraph.InnerText);
Assert.DoesNotContain(lastParagraph.Descendants<Text>(), t => t.Text == ToReplace);
}
// Act.
ReplaceText(stream);
// Assert.
using (WordprocessingDocument wordDocument = WordprocessingDocument.Open(stream, false))
{
Document document = wordDocument.MainDocumentPart.Document;
Paragraph firstParagraph = document.Descendants<Paragraph>().First();
Assert.Equal(ReplaceWith, firstParagraph.InnerText);
Assert.Contains(firstParagraph.Descendants<Text>(), t => t.Text == ReplaceWith);
Paragraph lastParagraph = document.Descendants<Paragraph>().Last();
Assert.NotEqual(ReplaceWith, lastParagraph.InnerText);
Assert.DoesNotContain(lastParagraph.Descendants<Text>(), t => t.Text == ReplaceWith);
}
}
}
}
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