Create PowerPoint tables in C# and VB.NET

Table elements are used to present content in a rectangular grid, separating data into columns and rows.

Tables and other content, such as charts or SmartArt diagrams, are embedded in a special kind of drawing, called a GraphicFrame, contained in the SlideObject.Content.

In the GemBox.Presentation API, the table-related types are grouped in the GemBox.Presentation.Tables namespace.

With the example below, you will learn to create and populate a simple table using the GemBox.Presentation API.

PowerPoint table created with GemBox.Presentation
Screenshot of PowerPoint table created with GemBox.Presentation
using GemBox.Presentation;
using GemBox.Presentation.Tables;

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

        var presentation = new PresentationDocument();

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

        // Create new table.
        var table = slide.Content.AddTable(5, 5, 20, 12, LengthUnit.Centimeter);

        // Format table with no-style grid.
        table.Format.Style = presentation.TableStyles.GetOrAdd(
            TableStyleName.NoStyleTableGrid);

        int columnCount = 4;
        int rowCount = 10;

        for (int i = 0; i < columnCount; i++)
            // Create new table column.
            table.Columns.AddNew(Length.From(5, LengthUnit.Centimeter));

        for (int i = 0; i < rowCount; i++)
        {
            // Create new table row.
            var row = table.Rows.AddNew(
                Length.From(1.2, LengthUnit.Centimeter));

            for (int j = 0; j < columnCount; j++)
            {
                // Create new table cell.
                var cell = row.Cells.AddNew();

                // Set table cell text.
                cell.Text.AddParagraph().AddRun(
                    string.Format(null, "Cell {0}-{1}", i + 1, j + 1));
            }
        }

        presentation.Save("Simple Table.%OutputFileType%");
    }
}
Imports GemBox.Presentation
Imports GemBox.Presentation.Tables

Module Program

    Sub Main()

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

        Dim presentation = New PresentationDocument

        ' Create new presentation slide.
        Dim slide = presentation.Slides.AddNew(SlideLayoutType.Custom)

        ' Create new table.
        Dim table = slide.Content.AddTable(5, 5, 20, 12, LengthUnit.Centimeter)

        ' Format table with no-style grid.
        table.Format.Style = presentation.TableStyles.GetOrAdd(
            TableStyleName.NoStyleTableGrid)

        Dim columnCount As Integer = 4
        Dim rowCount As Integer = 10

        For i As Integer = 0 To columnCount - 1
            ' Create new table column.
            table.Columns.AddNew(Length.From(5, LengthUnit.Centimeter))
        Next

        For i As Integer = 0 To rowCount - 1

            ' Create new table row.
            Dim row = table.Rows.AddNew(
                Length.From(1.2, LengthUnit.Centimeter))

            For j As Integer = 0 To columnCount - 1

                ' Create new table cell.
                Dim cell = row.Cells.AddNew()

                ' Set table cell text.
                cell.Text.AddParagraph().AddRun(
                    String.Format(Nothing, "Cell {0}-{1}", i + 1, j + 1))
            Next
        Next

        presentation.Save("Simple Table.%OutputFileType%")
    End Sub
End Module

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If you want to try the GemBox.Presentation yourself, you can download the free version. It delivers the same performance and set of features as the professional version, but with some operations limited. To remove the limitation, you need to purchase a license.