问题描述
我想使用以下条件在我的文档中设置不同的背景
如果输入文档的第一页在标题中不包含图像,我可以按照我的期望设置背景。 如果文档的第一页在标题中包含图像,则只会在第一页上删除该标题。
val headerPrimary = document.firstSection.headersFooters[HEADER_PRIMARY]
if (!document.firstSection.pageSetup.differentFirstPageheaderfooter && headerPrimary != null) {
// If so create first page header and copy content of the primary header into it.
val headerFirst = headerfooter(document,HEADER_FirsT);
headerPrimary.childNodes.forEach {
headerFirst.appendChild(it.deepClone(true));
}
// Put the first page header into the document.
document.firstSection.headersFooters.add(headerFirst);
}
val builder = DocumentBuilder(document)
document.firstSection.pageSetup.differentFirstPageheaderfooter = true
builder.movetoheaderfooter(HEADER_FirsT)
setimageInBackground(builder,firstimageDataString)
builder.movetoheaderfooter(HEADER_PRIMARY)
setimageInBackground(builder,SecondImageDataString)
private fun setimageInBackground(builder: DocumentBuilder,imageString: String) {
val background = builder.insertimage(imageString)
background.wrapType = NONE
background.behindText = true
background.relativeHorizontalPosition = RelativeHorizontalPosition.PAGE
background.relativeVerticalPosition = RelativeVerticalPosition.PAGE
background.left = (builder.pageSetup.pageWidth - background.width) / 2
background.top = (builder.pageSetup.pageHeight - background.height) / 2
}
对于输入文档/预期结果和图像,我已在响应论坛中上传了附件 Aspose forum link
解决方法
出现问题是因为您的输入文档仅包含主标题。当您将 DocumentBuilder 的光标移动到第一页标题时,Aspose.Words 创建新的空第一页标题。要将主要页眉的内容保留在第一页上,您只需将主要页眉的内容复制到新创建的第一页页眉中。这是执行此操作的简单代码。
// Check whether there is only primary header.
HeaderFooter headerPrimary = (HeaderFooter)document.FirstSection.HeadersFooters[HeaderFooterType.HeaderPrimary];
if (!document.FirstSection.PageSetup.DifferentFirstPageHeaderFooter
&& headerPrimary != null)
{
// If so create first page header and copy content of the primary header into it.
HeaderFooter headerFirst = new HeaderFooter(document,HeaderFooterType.HeaderFirst);
foreach (Node primaryHeaderChild in headerPrimary.ChildNodes)
headerFirst.AppendChild(primaryHeaderChild.Clone(true));
// Put the first page header into the document.
document.FirstSection.HeadersFooters.Add(headerFirst);
}
// Your original code goes after.
DocumentBuilder builder = new DocumentBuilder(document);
document.FirstSection.PageSetup.DifferentFirstPageHeaderFooter = true;
builder.MoveToHeaderFooter(HeaderFooterType.HeaderFirst);
SetImageInBackground(builder,firstImageDataString);
builder.MoveToHeaderFooter(HeaderFooterType.HeaderPrimary);
SetImageInBackground(builder,secondImageDataString);