Create and manipulate Tables in PowerPoint using C#

readme.md

Learn how to create and manipulate table in PowerPoint presentations using C#: https://blog.aspose.com/2021/08/23/create-tables-in-powerpoint-using-csharp/

access-table.cs

// Load presentation
using (Presentation pres = new Presentation("UpdateExistingTable.pptx"))
{
    // Access the first slide
    ISlide sld = pres.Slides[0];

    // Initialize null TableEx
    ITable tbl = null;

    // Iterate through the shapes and set a reference to the table found
    foreach (IShape shp in sld.Shapes)
        if (shp is ITable)
            tbl = (ITable)shp;

    // Set the text of the first column of second row
    tbl[0, 1].TextFrame.Text = "New";

    //Write the PPTX to Disk
    pres.Save("table1_out.pptx", Aspose.Slides.Export.SaveFormat.Pptx);
}

create-table.cs

// Create or load presentation
Presentation pres = new Presentation();

// Access first slide
ISlide sld = pres.Slides[0];

// Define columns with widths and rows with heights
double[] dblCols = { 50, 50, 50 };
double[] dblRows = { 50, 30, 30, 30, 30 };

// Add table shape to slide
ITable tbl = sld.Shapes.AddTable(100, 50, dblCols, dblRows);

// Set border format and text for each cell
for (int row = 0; row < tbl.Rows.Count; row++)
{
	for (int cell = 0; cell < tbl.Rows[row].Count; cell++)
	{  
		// Add text to the cell
		tbl.Rows[row][cell].TextFrame.Text = "Cells_" + cell;

		tbl.Rows[row][cell].CellFormat.BorderTop.FillFormat.FillType = FillType.Solid;
		tbl.Rows[row][cell].CellFormat.BorderTop.FillFormat.SolidFillColor.Color = Color.Red;
		tbl.Rows[row][cell].CellFormat.BorderTop.Width = 5;

		tbl.Rows[row][cell].CellFormat.BorderBottom.FillFormat.FillType = (FillType.Solid);
		tbl.Rows[row][cell].CellFormat.BorderBottom.FillFormat.SolidFillColor.Color= Color.Red;
		tbl.Rows[row][cell].CellFormat.BorderBottom.Width =5;

		tbl.Rows[row][cell].CellFormat.BorderLeft.FillFormat.FillType = FillType.Solid;
		tbl.Rows[row][cell].CellFormat.BorderLeft.FillFormat.SolidFillColor.Color =Color.Red;
		tbl.Rows[row][cell].CellFormat.BorderLeft.Width = 5;

		tbl.Rows[row][cell].CellFormat.BorderRight.FillFormat.FillType = FillType.Solid;
		tbl.Rows[row][cell].CellFormat.BorderRight.FillFormat.SolidFillColor.Color = Color.Red;
		tbl.Rows[row][cell].CellFormat.BorderRight.Width = 5;
	}
}

// Save PPTX to disk
pres.Save("table.pptx", SaveFormat.Pptx);

format-table.cs

// Create or load presentation
Presentation presentation = new Presentation();

// Get reference of the slide
ISlide slide = presentation.Slides[0];

// Get reference of the table
ITable someTable = presentation.Slides[0].Shapes[0] as ITable; // let's say that the first shape on the first slide is a table

// Set table cells' font height
PortionFormat portionFormat = new PortionFormat();
portionFormat.FontHeight = 25;
someTable.SetTextFormat(portionFormat);

// Set table cells' text alignment and right margin in one call
ParagraphFormat paragraphFormat = new ParagraphFormat();
paragraphFormat.Alignment = TextAlignment.Right;
paragraphFormat.MarginRight = 20;
someTable.SetTextFormat(paragraphFormat);

// Set table cells' text vertical type
TextFrameFormat textFrameFormat = new TextFrameFormat();
textFrameFormat.TextVerticalType = TextVerticalType.Vertical;
someTable.SetTextFormat(textFrameFormat);

// Save presentation
presentation.Save("result.pptx", SaveFormat.Pptx);

lock-aspect-ratio.cs

// Load presentation
using (Presentation pres = new Presentation("presentation.pptx"))
{
    // Get reference of the table
    ITable table = (ITable)pres.Slides[0].Shapes[0];
    Console.WriteLine($"Lock aspect ratio set: {table.ShapeLock.AspectRatioLocked}");

    // Lock aspect ratio
    table.ShapeLock.AspectRatioLocked = !table.ShapeLock.AspectRatioLocked; // invert
    Console.WriteLine($"Lock aspect ratio set: {table.ShapeLock.AspectRatioLocked}");

    // Save presentation
    pres.Save("pres-out.pptx", SaveFormat.Pptx);
}