PowerPoint List Formatting

GemBox.Presentation supports TextListFormat options like list type, list level, start number, and more. The following examples shows how you can create and format numbered and bulleted lists in PowerPoint files, using GemBox.Presentation in C# and VB.NET.

C#
VB.NET

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using GemBox.Presentation;

class Program
{
    static void Main()
    {
        // If using the Professional version, put your serial key below.
        ComponentInfo.SetLicense("FREE-LIMITED-KEY");

        var presentation = new PresentationDocument();
        var slide = presentation.Slides.AddNew(SlideLayoutType.Custom);

        // Create number list items.
        var textBox = slide.Content.AddTextBox(ShapeGeometryType.RoundedRectangle, 2, 2, 8, 5, LengthUnit.Centimeter);
        var paragraph = textBox.AddParagraph();
        paragraph.AddRun("First item.");
        paragraph.Format.List.NumberType = ListNumberType.DecimalPeriod;
        paragraph.Format.List.Level = 0;
        paragraph.Format.IndentationBeforeText = 27;
        paragraph.Format.IndentationSpecial = -27;

        paragraph = textBox.AddParagraph();
        paragraph.AddRun("Second item.");
        paragraph.Format.List.NumberType = ListNumberType.DecimalPeriod;
        paragraph.Format.List.Level = 0;
        paragraph.Format.IndentationBeforeText = 27;
        paragraph.Format.IndentationSpecial = -27;

        paragraph = textBox.AddParagraph();
        paragraph.AddRun("Second item's first sub-item.");
        paragraph.Format.List.NumberType = ListNumberType.LowerLetterPeriod;
        paragraph.Format.List.Level = 1;
        paragraph.Format.IndentationBeforeText = 54;
        paragraph.Format.IndentationSpecial = -27;

        paragraph = textBox.AddParagraph();
        paragraph.AddRun("Second item's second sub-item.");
        paragraph.Format.List.NumberType = ListNumberType.LowerLetterPeriod;
        paragraph.Format.List.Level = 1;
        paragraph.Format.IndentationBeforeText = 54;
        paragraph.Format.IndentationSpecial = -27;

        // Create bullet list items.
        textBox = slide.Content.AddTextBox(ShapeGeometryType.RoundedRectangle, 2, 8, 8, 5, LengthUnit.Centimeter);
        paragraph = textBox.AddParagraph();
        paragraph.AddRun("First item.");
        paragraph.Format.List.BulletType = ListBulletType.FilledRound;
        paragraph.Format.IndentationBeforeText = 27;
        paragraph.Format.IndentationSpecial = -27;

        paragraph = textBox.AddParagraph();
        paragraph.AddRun("Second item.");
        paragraph.Format.List.BulletType = ListBulletType.FilledRound;
        paragraph.Format.IndentationBeforeText = 27;
        paragraph.Format.IndentationSpecial = -27;

        presentation.Save("Lists.%OutputFileType%");
    }
}

Imports GemBox.Presentation

Module Program

    Sub Main()

        ' If using the Professional version, put your serial key below.
        ComponentInfo.SetLicense("FREE-LIMITED-KEY")

        Dim presentation As New PresentationDocument()
        Dim slide = presentation.Slides.AddNew(SlideLayoutType.Custom)

        ' Create number list items.
        Dim textBox = slide.Content.AddTextBox(ShapeGeometryType.RoundedRectangle, 2, 2, 8, 5, LengthUnit.Centimeter)
        Dim paragraph = textBox.AddParagraph()
        paragraph.AddRun("First item.")
        paragraph.Format.List.NumberType = ListNumberType.DecimalPeriod
        paragraph.Format.List.Level = 0
        paragraph.Format.IndentationBeforeText = 27
        paragraph.Format.IndentationSpecial = -27

        paragraph = textBox.AddParagraph()
        paragraph.AddRun("Second item.")
        paragraph.Format.List.NumberType = ListNumberType.DecimalPeriod
        paragraph.Format.List.Level = 0
        paragraph.Format.IndentationBeforeText = 27
        paragraph.Format.IndentationSpecial = -27

        paragraph = textBox.AddParagraph()
        paragraph.AddRun("Second item's first sub-item.")
        paragraph.Format.List.NumberType = ListNumberType.LowerLetterPeriod
        paragraph.Format.List.Level = 1
        paragraph.Format.IndentationBeforeText = 54
        paragraph.Format.IndentationSpecial = -27

        paragraph = textBox.AddParagraph()
        paragraph.AddRun("Second item's second sub-item.")
        paragraph.Format.List.NumberType = ListNumberType.LowerLetterPeriod
        paragraph.Format.List.Level = 1
        paragraph.Format.IndentationBeforeText = 54
        paragraph.Format.IndentationSpecial = -27

        ' Create bullet list items.
        textBox = slide.Content.AddTextBox(ShapeGeometryType.RoundedRectangle, 2, 8, 8, 5, LengthUnit.Centimeter)
        paragraph = textBox.AddParagraph()
        paragraph.AddRun("First item.")
        paragraph.Format.List.BulletType = ListBulletType.FilledRound
        paragraph.Format.IndentationBeforeText = 27
        paragraph.Format.IndentationSpecial = -27

        paragraph = textBox.AddParagraph()
        paragraph.AddRun("Second item.")
        paragraph.Format.List.BulletType = ListBulletType.FilledRound
        paragraph.Format.IndentationBeforeText = 27
        paragraph.Format.IndentationSpecial = -27

        presentation.Save("Lists.%OutputFileType%")
    End Sub
End Module

PowerPoint file containing list items generated by GemBox.Presentation — Screenshot of PowerPoint with number and bullet lists

Next steps

GemBox.Presentation is a .NET component that enables you to read, write, edit, convert, and print presentation files from your .NET applications using one simple API.

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PowerPoint List Formatting

See also

Next steps