Question

使用下面的代码，在现有的PowerPoint上添加日期。

此代码有效，并且在第一张幻灯片中添加了日期，但是可以在页面上自定义该日期的插入点吗？字体和大小？

这是当前输出：

预先感谢您的帮助。

string fileName = @"C:\\inetpub\\wwwroot\\aspnet\\Template\\01_FOCUS.pptx";

using (PresentationDocument oPDoc = PresentationDocument.Open(fileName, true))
{
            PresentationPart oPPart = oPDoc.PresentationPart;
            SlideIdList slideIdList = oPPart.Presentation.SlideIdList;
            SlidePart sp = slideIdList.ChildElements
           .Cast<SlideId>()
           .Select(x => oPPart.GetPartById(x.RelationshipId))
           .Cast<SlidePart>().First();
            AddDateToSlidePart(sp);
}

public static void AddDateToSlidePart(SlidePart slidePart1)
{
    Slide slide1 = slidePart1.Slide;
    CommonSlideData commonSlideData1 = slide1.GetFirstChild<CommonSlideData>();
    ShapeTree shapeTree1 = commonSlideData1.GetFirstChild<ShapeTree>();

    DocumentFormat.OpenXml.Presentation.Shape shape1 =
        new DocumentFormat.OpenXml.Presentation.Shape();

    DocumentFormat.OpenXml.Presentation.NonVisualShapeProperties nonVisualShapeProperties1 =
        new DocumentFormat.OpenXml.Presentation.NonVisualShapeProperties();

    DocumentFormat.OpenXml.Presentation.NonVisualDrawingProperties nonVisualDrawingProperties1 =
        new DocumentFormat.OpenXml.Presentation.NonVisualDrawingProperties() { Id = (UInt32Value)4U, Name = "Date Placeholder 3" };

    DocumentFormat.OpenXml.Presentation.NonVisualShapeDrawingProperties nonVisualShapeDrawingProperties1 =
        new DocumentFormat.OpenXml.Presentation.NonVisualShapeDrawingProperties();

    DocumentFormat.OpenXml.Drawing.ShapeLocks shapeLocks1 =
        new DocumentFormat.OpenXml.Drawing.ShapeLocks() { NoGrouping = true };

    nonVisualShapeDrawingProperties1.Append(shapeLocks1);

    ApplicationNonVisualDrawingProperties applicationNonVisualDrawingProperties1 =
        new ApplicationNonVisualDrawingProperties();

    PlaceholderShape placeholderShape1 =
        new PlaceholderShape() { Type = PlaceholderValues.DateAndTime, Size = PlaceholderSizeValues.Half, Index = (UInt32Value)10U };

    applicationNonVisualDrawingProperties1.Append(placeholderShape1);
    nonVisualShapeProperties1.Append(nonVisualDrawingProperties1);
    nonVisualShapeProperties1.Append(nonVisualShapeDrawingProperties1);
    nonVisualShapeProperties1.Append(applicationNonVisualDrawingProperties1);

    DocumentFormat.OpenXml.Presentation.ShapeProperties shapeProperties1 =
        new DocumentFormat.OpenXml.Presentation.ShapeProperties();

    DocumentFormat.OpenXml.Presentation.TextBody textBody1 =
        new DocumentFormat.OpenXml.Presentation.TextBody();

    DocumentFormat.OpenXml.Drawing.BodyProperties bodyProperties1 =
        new DocumentFormat.OpenXml.Drawing.BodyProperties();

    DocumentFormat.OpenXml.Drawing.ListStyle listStyle1 =
        new DocumentFormat.OpenXml.Drawing.ListStyle();

    DocumentFormat.OpenXml.Drawing.Paragraph paragraph1 =
        new DocumentFormat.OpenXml.Drawing.Paragraph();

    DocumentFormat.OpenXml.Drawing.Field field1 =
        new DocumentFormat.OpenXml.Drawing.Field() { Id = "{528B97E8-8E4B-4D32-BA17-4F287283DFD6}", Type = "datetime1" };

    DocumentFormat.OpenXml.Drawing.RunProperties runProperties1 =
        new DocumentFormat.OpenXml.Drawing.RunProperties() { Language = "it-IT" };

    DocumentFormat.OpenXml.Drawing.Text text1 =
        new DocumentFormat.OpenXml.Drawing.Text();

    text1.Text = DateTime.Now.ToString("dd/mm/yyyy");

    field1.Append(runProperties1);
    field1.Append(text1);

    DocumentFormat.OpenXml.Drawing.EndParagraphRunProperties endParagraphRunProperties1 =
        new DocumentFormat.OpenXml.Drawing.EndParagraphRunProperties() { Language = "it-IT" };

    paragraph1.Append(field1);
    paragraph1.Append(endParagraphRunProperties1);
    textBody1.Append(bodyProperties1);
    textBody1.Append(listStyle1);
    textBody1.Append(paragraph1);
    shape1.Append(nonVisualShapeProperties1);
    shape1.Append(shapeProperties1);
    shape1.Append(textBody1);
    shapeTree1.Append(shape1);
}

Answer 1

OpenXML SDK生产力工具（可从Microsoft网站下载）是您的朋友。当我需要做这样的事情时，我：

创建我想要的文档
在适当的工具（在这种情况下为PowerPoint）中打开它。
进行微小的更改（以“弄脏”文档，并使PowerPoint认为需要更改）。
保存结果
对我要查看的文档进行更改，并以新名称保存结果
打开OpenXML生产力工具，然后单击“比较文件”工具。

我之所以要保存（在步骤3/4中）是为了使PowerPoint可以将所有PowerPoint样式添加到我创建的文档中。第二次保存（第5步）必须具有所有这些，所以我希望两个文档尽可能地接近-只有“我要查看的文档的更改”是两个文档之间的区别。

这时，您应该看到解决问题的路径。使用OOXML时，该工具必不可少。

在C＃的演示文稿（Open XML SDK）上添加日期

1 个答案: