Aspose.Slides for .NET 21.9 Release Notes

This page contains release notes for Aspose.Slides for .NET 21.9

Key	Summary	Category	Related Documentation
SLIDESNET-42502	Hindi text is not displayed when converting PPTX to PDF	Investigation	< https://docs.aspose.com/slides/net/convert-powerpoint-ppt-and-pptx-to-pdf>
SLIDESNET-42645	.NET5 Support	Feature
SLIDESNET-38994	Getting automatic table cells fill color	Feature	https://docs.aspose.com/slides/net/manage-table/
SLIDESNET-42579	Getting the number of worksheets in a workbook	Enhancement	https://docs.aspose.com/slides/net/chart-workbook/
SLIDESNET-40508	Slow slide cloning performance in Aspose.Slides	Enhancement	https://docs.aspose.com/slides/net/clone-slides/
SLIDESNET-42763	Text labels in EMF image are missing when converting presentation to PDF	Bug	< https://docs.aspose.com/slides/net/convert-powerpoint-ppt-and-pptx-to-pdf>
SLIDESNET-42760	Animation effect changed (text color) after cloning	Bug	https://docs.aspose.com/slides/net/clone-slides/
SLIDESNET-42756	Can’t parse coordinate exception on HTML fragment add	Bug	https://docs.aspose.com/slides/net/manage-paragraph/#import-html-text-in-paragraphs
SLIDESNET-42730	PPTX conversions hang and throw StackOverflowException	Bug	https://docs.aspose.com/slides/net/convert-presentation/
SLIDESNET-42728	Chart.AlternativeTextTitle property does not work	Bug	https://docs.aspose.com/slides/net/shape-manipulations/#set-alternative-text-for-shape
SLIDESNET-42721	Chart line is continuous when converting PPTX to PNG	Bug	https://docs.aspose.com/slides/net/export-chart/
SLIDESNET-42720	Slide content is getting mirrored left-right when converting to PNG	Bug	https://docs.aspose.com/slides/net/powerpoint-math-equations/
SLIDESNET-42718	Text missing in generated PDF when using FontsLoader.loadExternalFont	Bug	https://docs.aspose.com/slides/net/convert-powerpoint-ppt-and-pptx-to-pdf/
SLIDESNET-42715	Shadows are lost after converting PPTX to PNG	Bug	< https://docs.aspose.com/slides/net/convert-slide/#convert-slide-to-bitmap>
SLIDESNET-42707	Duotone effective exception on accessing color	Bug	https://docs.aspose.com/slides/net/shape-effective-properties/
SLIDESNET-42702	Exception on accessing solid fill color	Bug	https://docs.aspose.com/slides/net/shape-effective-properties/
SLIDESNET-42685	Text becomes non-bold after converting presentation to SVG	Bug	https://docs.aspose.com/slides/net/render-a-slide-as-an-svg-image/
SLIDESNET-42676	EMF images are inverted after rendering slides to Graphics	Bug	https://docs.aspose.com/slides/net/convert-slide/#converting-slides-to-bitmap-and-saving-the-images-in-png
SLIDESNET-42663	EMF images are not showing when converting PPTX to PDF	Bug	https://docs.aspose.com/slides/net/convert-powerpoint-ppt-and-pptx-to-pdf/
SLIDESNET-42617	Text effects are missing in generated PDF	Bug	https://docs.aspose.com/slides/net/convert-powerpoint-ppt-and-pptx-to-pdf
SLIDESNET-42613	Text and shadow improperly rendered in thumbnail	Bug	https://docs.aspose.com/slides/net/convert-slide/#convert-slide-to-bitmap
SLIDESNET-40804	Text shadow effect improperly rendered in generated PDF	Bug	https://docs.aspose.com/slides/net/convert-powerpoint-ppt-and-pptx-to-pdf/
SLIDESNET-40688	Thumbnails not properly generated from pptx	Bug	https://docs.aspose.com/slides/net/create-shape-thumbnails/
SLIDESNET-39769	Slide Content missing on saving ppt	Bug	https://docs.aspose.com/slides/net/save-presentation/
SLIDESNET-38977	WordArt style of text is missing after saving ppt	Bug	https://docs.aspose.com/slides/net/wordart/
SLIDESNET-38976	SmartArt is missing after saving ppt	Bug	https://docs.aspose.com/slides/net/manage-smartart/
SLIDESNET-37979	Missing Smart Art on Notes Master	Bug	https://docs.aspose.com/slides/net/manage-smartart/
SLIDESNET-37675	Black shape borders appears after resaving of ppt presentation	Bug	https://docs.aspose.com/slides/net/save-presentation/
SLIDESNET-37646	IndexOutOfRangeException on loading ODP presentation	Bug	https://docs.aspose.com/slides/net/convert-openoffice-odp/
SLIDESNET-37371	SmartArt shapes lost after load and save	Bug	https://docs.aspose.com/slides/net/manage-smartart/
SLIDESNET-36786	Improper Odp resaving	Bug	https://docs.aspose.com/slides/net/convert-openoffice-odp/
SLIDESNET-36693	Table cells fill type returns NotDefined	Bug	https://docs.aspose.com/slides/net/manage-table/
SLIDESNET-36688	Animation sequence changed after portion text changed	Bug	https://docs.aspose.com/slides/net/powerpoint-animation/
SLIDESNET-35869	System exception is thrown on exporting PPTX to PDF	Bug	https://docs.aspose.com/slides/net/convert-powerpoint-ppt-and-pptx-to-pdf/
SLIDESNET-34170	Wrong text rendering in thumbnails and Pdf	Bug	https://docs.aspose.com/slides/net/convert-powerpoint-ppt-and-pptx-to-pdf

Public API Changes

HTML5 Export Support

We implemented support for HTML5 Export in Slides (enhanced customizable version of HTML5 Support).

The new Html5 value has been added to SaveFormat enumerations. This value represents the HTML5 format for exporting.

The code snippet below demonstrates the saving presentation in HTML5 operation:

using (Presentation presentation = new Presentation("SomePresentation.pptx"))
{
    presentation.Save("index.html", SaveFormat.Html5);
}

Using the Html5Options configuration, you can export a presentation containing slides transitions, animations, and shapes animations to HTML5:

using (Presentation pres = new Presentation("demo.pptx"))
{
    pres.Save("demo-animate.html", SaveFormat.Html5, new Html5Options()
    {
        AnimateShapes = true,
        AnimateTransitions = true
    });
}

Access to the ChartDataWorksheetCollection has been added

To provide access to worksheets, we added the IChartDataWorksheetCollection interface, ChartDataWorksheetCollection class, and IChartDataWorkbook.Worksheets property.

using (Presentation pres = new Presentation())
{
    IChart chart = pres.Slides[0].Shapes.AddChart(ChartType.Pie, 50, 50, 400, 500);
    
    IChartDataWorkbook workbook =  chart.ChartData.ChartDataWorkbook;
    for (int i = 0; i < workbook.Worksheets.Count; i++)
    {
        Console.WriteLine(workbook.Worksheets[i].Name);
    }
}

IAccessiblePVIObject interface has been added

IAccessiblePVIObject interface has been added to Aspose.Slides namespace. It represents a type that can be a source of an effective version of its data.

IAccessiblePVIObject declaration:

/// <summary>
/// Represents a type that can return corresponding effective data with the inheritance applied.
/// </summary>
/// <typeparam name="T">Type of effective data.</typeparam>
public interface IAccessiblePVIObject<T> where T : class
{
    /// <summary>
    /// Gets effective data with the inheritance applied.
    /// </summary>
    /// <returns>An effective data object.</returns>
    T GetEffective();
}

Currently, all effect types from the Aspose.Slides.Effects namespace implement the IAccessiblePVIObject interface—and this means you can get effective values for effects with styled colors resolved.

This code demonstrates an operation where we added a picture for a slide background, added Duotone effect with styled colors, and then we got the effective duotone colors with which the background will be rendered:

using (Presentation presentation = new Presentation())
{
    IPPImage backgroundImage = presentation.Images.AddImage(Image.FromFile("someimage.png"));

    presentation.Slides[0].Background.Type = BackgroundType.OwnBackground;
    presentation.Slides[0].Background.FillFormat.FillType = FillType.Picture;
    presentation.Slides[0].Background.FillFormat.PictureFillFormat.Picture.Image = backgroundImage;

    IDuotone duotone = presentation.Slides[0].Background.FillFormat.PictureFillFormat.Picture.ImageTransform
        .AddDuotoneEffect();

    duotone.Color1.ColorType = ColorType.Scheme;
    duotone.Color1.SchemeColor = SchemeColor.Accent1;
    duotone.Color2.ColorType = ColorType.Scheme;
    duotone.Color2.SchemeColor = SchemeColor.Dark2;

    IDuotoneEffectiveData duotoneEffective = duotone.GetEffective();

    Console.WriteLine("Duotone effective color1: " + duotoneEffective.Color1);
    Console.WriteLine("Duotone effective color2: " + duotoneEffective.Color2);
}