[英]How to Convert string (contains html tag) to PDF format passing through Phrase using itextsharp in c#?
i want outputlike this 我想要这样的输出
I am generating a pdf file. 我正在生成一个pdf文件。 i am passing string contains html tags.
我正在传递包含html标记的字符串。 but the string binding in pdf as html tags.
但是将pdf中的字符串绑定作为html标签。 but i need output as a design what in th html tags.
但是我需要将输出作为设计在html标签中的内容。 I am passing string notes to phrase ph14...
我正在将字符串注释传递给短语ph14 ...
public string GenerateQuotePdf(int id)
{
Stream stream = Stream.Null;
Document pdfDoc = new Document(PageSize.A4, 30F, 30F, 20F, 0F);
try
{
stream = new FileStream(filePath, FileMode.Create);
PdfWriter pdfWriter = PdfWriter.GetInstance(pdfDoc, stream);
pdfDoc.Open();
string notes ="<div style=\"text-align: center\"><b><span style=\"font-size: large\">Terms and Conditions</span></b></div><div>*<span class=\"Apple-tab-span\" style=\"white-space: pre\">\t</span>Prices are in AED</div><div><br /></div><div>*<span class=\"Apple-tab-span\" style=\"white-space: pre\">\t</span>All Credit Card transactions are subject to a 3.25% processing fee</div><div><br /></div><div>*<span class=\"Apple-tab-span\" style=\"white-space: pre\">\t</span>In the event production is required per customer request, 50% of the entire bill will be due prior to start of production, and the <span class=\"Apple-tab-span\" style=\"white-space: pre\">\t</span>balance due upon delivery.</div><div><br /></div><div>*<span class=\"Apple-tab-span\" style=\"white-space: pre\">\t</span>All furniture will be delivered in A+ condition. In the event that the equipment is damaged, the renter shall be liable for all <span class=\"Apple-tab-span\" style=\"white-space: pre\">\t</span>repair costs to restore the equipment to its state at the beginning of the rental period.</div><div><br /></div><div>*<span class=\"Apple-tab-span\" style=\"white-space: pre\">\t</span>Equipment shall be utilized for the stated purpose and at the stated location only.</div>";
PdfPTable table14 = new PdfPTable(1);
table14.WidthPercentage = 99;
table14.DefaultCell.Border = 0;
table14.DefaultCell.VerticalAlignment = Element.ALIGN_MIDDLE;
Phrase ph14 = new Phrase(notes, textFont6);
PdfPCell cell14 = new PdfPCell(ph14);
cell14.VerticalAlignment = Element.ALIGN_CENTER;
cell14.Border = 0;
cell14.HorizontalAlignment = Element.ALIGN_CENTER;
cell14.PaddingLeft = 10F;
cell14.PaddingRight = 4F;
cell14.PaddingTop = 4F;
cell14.PaddingBottom = 6F;
table14.AddCell(cell14);
PdfPTable mainTable = new PdfPTable(1);
mainTable.WidthPercentage = 100;
PdfPCell mainCell = new PdfPCell();
mainCell.PaddingTop = 0F;
mainCell.PaddingRight = 10F;
mainCell.PaddingBottom = 25F;
mainCell.PaddingLeft = 10F;
mainCell.Border = 0;
mainCell.AddElement(table14);
mainTable.AddCell(mainCell);
pdfDoc.Add(mainTable);
}
catch
{
}
finally
{
pdfDoc.Close();
stream.Close();
stream.Dispose();
}
}
I have copied your HTML to a file named list_dirty.html : 我已将您的HTML复制到名为list_dirty.html的文件中:
<div style="text-align: center"><b><span style="font-size: large">Terms and Conditions</span></b></div>
<div>*<span class="Apple-tab-span" style="white-space: pre"> </span>Prices are in AED</div>
<div><br /></div>
<div>*<span class="Apple-tab-span" style="white-space: pre"> </span>All Credit Card transactions are subject to a 3.25% processing fee</div>
<div><br /></div>
<div>*<span class="Apple-tab-span" style="white-space: pre"> </span>In the event production is required per customer request, 50% of the entire bill will be due prior to start of production, and the <span class="Apple-tab-span" style="white-space: pre"> </span>balance due upon delivery.</div>
<div><br /></div>
<div>*<span class="Apple-tab-span" style="white-space: pre"> </span>All furniture will be delivered in A+ condition. In the event that the equipment is damaged, the renter shall be liable for all <span class="Apple-tab-span" style="white-space: pre"> </span>repair costs to restore the equipment to its state at the beginning of the rental period.</div>
<div><br /></div>
<div>*<span class="Apple-tab-span" style="white-space: pre"> </span>Equipment shall be utilized for the stated purpose and at the stated location only.</div>
This HTML is considered "dirty" because you want to render a list, but you are not using the right tags to do so. 该HTML被认为是“脏”的,因为您要呈现一个列表,但是您没有使用正确的标签来这样做。
I have parsed this HTML to PDF using the List_Dirty example: 我已经使用List_Dirty示例将此HTML解析为PDF:
public void createPdf(String file) throws IOException, DocumentException {
// step 1
Document document = new Document();
// step 2
PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream(file));
writer.setInitialLeading(12);
// step 3
document.open();
// step 4
XMLWorkerHelper.getInstance().parseXHtml(writer, document,
new FileInputStream(HTML));
// step 5
document.close();
}
The result is a PDF that looks like this: 结果是一个如下所示的PDF:
If you respect yourself as a developer (which I assume you do), you should not be happy with this result: the list isn't a real list. 如果您尊重自己作为开发人员的能力(我假设您是这样做的),那么您对这个结果将不满意:列表不是真实的列表。 You can fix this by making it a real list as I have done in the file list_clean.html :
您可以像在文件list_clean.html中所做的那样,通过使其成为真实列表来解决此问题 :
<div style="text-align: center"><b><span style="font-size: large">Terms and Conditions</span></b></div>
<ul>
<li>Prices are in AED</li>
<li>All Credit Card transactions are subject to a 3.25% processing fee</li>
<li>In the event production is required per customer request, 50% of the entire bill will be due prior to start of production, and the balance due upon delivery.</li>
<li>All furniture will be delivered in A+ condition. In the event that the equipment is damaged, the renter shall be liable for all repair costs to restore the equipment to its state at the beginning of the rental period.</li>
<li>Equipment shall be utilized for the stated purpose and at the stated location only.</li>
</ul>
I have parsed this HTML to PDF using the List_Clean example: 我已经使用List_Clean示例将此HTML解析为PDF:
public void createPdf(String file) throws IOException, DocumentException {
// step 1
Document document = new Document();
// step 2
PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream(file));
writer.setInitialLeading(12);
// step 3
document.open();
// step 4
XMLWorkerHelper.getInstance().parseXHtml(writer, document,
new FileInputStream(HTML));
// some code that will be explained later
// step 5
document.close();
}
What is different in this code from what we had before? 此代码与我们之前的代码有何不同? Nothing!
没有! Only the HTML is different resulting in a PDF that looks like this:
只有HTML与众不同,导致PDF看起来像这样:
That's already better, but in your code, you have more spacing and you also add the list to a PdfPTable
. 那已经更好了,但是在您的代码中,您有更多的间距,并且还将列表添加到
PdfPTable
。 That's why I added the same HTML a second time in the List_Clean example: 这就是为什么我在List_Clean示例中第二次添加相同的HTML:
String html = Utilities.readFileToString(HTML);
String css = "ul { list-style: disc } li { padding: 10px }";
PdfPTable table = new PdfPTable(1);
table.setSpacingBefore(20);
PdfPCell cell = new PdfPCell();
for (Element e : XMLWorkerHelper.parseToElementList(html, css)) {
cell.addElement(e);
}
table.addCell(cell);
document.add(table);
Do you see the difference? 你看得到差别吗? I am using CSS to define the list symbol and I am defining a padding for each list item.
我正在使用CSS定义列表符号,并且为每个列表项定义了填充。 Instead of rendering the HTML straight to the
Document
and the PdfWriter
, I parse the HTML and the CSS to a list of elements. 我没有直接将HTML呈现给
Document
和PdfWriter
,而是将HTML和CSS解析为元素列表。 I then add each element to a PdfPCell
. 然后,我将每个元素添加到
PdfPCell
。
The result looks like this: 结果看起来像这样:
This looks quite nice, doesn't it? 这看起来很不错,不是吗? For more info about using iText(Sharp) and XML Worker, take a look at the official documentation : XML Worker examples / XML Worker FAQ
有关使用iText(Sharp)和XML Worker的更多信息,请查看官方文档 : XML Worker示例 / XML Worker FAQ
Usually, I convert HTML tags to plain text manually using this method 通常,我使用此方法将HTML标签手动转换为纯文本
public static string ConvertHtmlToPlainText(string text)
{
text = HttpUtility.HtmlDecode(text);
text = text.Replace("<br>", "\n");
text = text.Replace("<br >", "\n");
text = text.Replace("<br />", "\n");
text = text.Replace(" ", "\t");
text = text.Replace(" ", " ");
text = ReplaceAnchorTags(text);
return text;
}
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