Add table to powerpoint slide using Open XML - powerpoint

Question

I got the code for the Table in the powerpoint using the code generator, but I am not able to add the table to an existing powerpoint document.
I tried adding another table to the intended slide and doing the following:
Table table = slidePart.Slide.Descendants<Table>().First();
table.RemoveAllChildren();
Table createdTable = CreateTable();
foreach (OpenXmlElement childElement in createdTable.ChildElements)
{
table.AppendChild(childElement.CloneNode(true));
}
But that didn't work.
I am out of ideas on this issue.
My original target is to add a table with dynamic number of columns and fixed number of row to my presentation.

Answer 1

I know its been very long since this question is posted, but just in case if some one needs a working code to create table in pptx.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using DocumentFormat.OpenXml.Packaging;
using DocumentFormat.OpenXml.Presentation;
using A = DocumentFormat.OpenXml.Drawing;
using System.IO;
namespace ANF.Slides.TestEngine
{
class Program
{
static int index = 1;
static void Main(string[] args)
{
Console.WriteLine("Preparing Presentation");
PopulateData();
// GeneratedClass cls=new GeneratedClass();
//cls.CreatePackage(#"E:\output.pptx");
Console.WriteLine("Completed Presentation");
Console.ReadLine();
}
private static void PopulateData()
{
var overflow = false;
const int pageBorder = 3000000;
var db = new AdventureWorksEntities();
var products = db.Products;//.Take(5);
const string outputFile = #"E:\openxml\output.pptx";
File.Copy(#"E:\OpenXml\Template.pptx", outputFile, true);
using (var myPres = PresentationDocument.Open(outputFile, true))
{
var presPart = myPres.PresentationPart;
var slideIdList = presPart.Presentation.SlideIdList;
var list = slideIdList.ChildElements
.Cast<SlideId>()
.Select(x => presPart.GetPartById(x.RelationshipId))
.Cast<SlidePart>();
var tableSlidePart = (SlidePart)list.Last();
var current = tableSlidePart;
long totalHeight = 0;
foreach (var product in products)
{
if (overflow)
{
var newTablePart = CloneSlidePart(presPart, tableSlidePart);
current = newTablePart;
overflow = false;
totalHeight = 0;
}
var tbl = current.Slide.Descendants<A.Table>().First();
var tr = new A.TableRow();
tr.Height = 200000;
tr.Append(CreateTextCell(product.Name));
tr.Append(CreateTextCell(product.ProductNumber));
tr.Append(CreateTextCell(product.Size));
tr.Append(CreateTextCell(String.Format("{0:00}", product.ListPrice)));
tr.Append(CreateTextCell(product.SellStartDate.ToShortDateString()));
tbl.Append(tr);
totalHeight += tr.Height;
if (totalHeight > pageBorder)
overflow = true;
}
}
}
static SlidePart CloneSlidePart(PresentationPart presentationPart, SlidePart slideTemplate)
{
//Create a new slide part in the presentation
SlidePart newSlidePart = presentationPart.AddNewPart<SlidePart>("newSlide" + index);
index++;
//Add the slide template content into the new slide
newSlidePart.FeedData(slideTemplate.GetStream(FileMode.Open));
//make sure the new slide references the proper slide layout
newSlidePart.AddPart(slideTemplate.SlideLayoutPart);
//Get the list of slide ids
SlideIdList slideIdList = presentationPart.Presentation.SlideIdList;
//Figure out where to add the next slide (find max slide)
uint maxSlideId = 1;
SlideId prevSlideId = null;
foreach (SlideId slideId in slideIdList.ChildElements)
{
if (slideId.Id > maxSlideId)
{
maxSlideId = slideId.Id;
prevSlideId = slideId;
}
}
maxSlideId++;
//Add new slide at the end of the deck
SlideId newSlideId = slideIdList.InsertAfter(new SlideId(), prevSlideId);
//Make sure id and relid is set appropriately
newSlideId.Id = maxSlideId;
newSlideId.RelationshipId = presentationPart.GetIdOfPart(newSlidePart);
return newSlidePart;
}
private static A.TableCell CreateTextCell(string text)
{
var textCol = new string[2];
if (!string.IsNullOrEmpty(text))
{
if (text.Length > 25)
{
textCol[0] = text.Substring(0, 25);
textCol[1] = text.Substring(26);
}
else
{
textCol[0] = text;
}
}
else
{
textCol[0] = string.Empty;
}
A.TableCell tableCell3 = new A.TableCell();
A.TextBody textBody3 = new A.TextBody();
A.BodyProperties bodyProperties3 = new A.BodyProperties();
A.ListStyle listStyle3 = new A.ListStyle();
textBody3.Append(bodyProperties3);
textBody3.Append(listStyle3);
var nonNull = textCol.Where(t => !string.IsNullOrEmpty(t)).ToList();
foreach (var textVal in nonNull)
{
//if (!string.IsNullOrEmpty(textVal))
//{
A.Paragraph paragraph3 = new A.Paragraph();
A.Run run2 = new A.Run();
A.RunProperties runProperties2 = new A.RunProperties() { Language = "en-US", Dirty = false, SmartTagClean = false };
A.Text text2 = new A.Text();
text2.Text = textVal;
run2.Append(runProperties2);
run2.Append(text2);
paragraph3.Append(run2);
textBody3.Append(paragraph3);
//}
}
A.TableCellProperties tableCellProperties3 = new A.TableCellProperties();
tableCell3.Append(textBody3);
tableCell3.Append(tableCellProperties3);
//var tc = new A.TableCell(
// new A.TextBody(
// new A.BodyProperties(),
// new A.Paragraph(
// new A.Run(
// new A.Text(text)))),
// new A.TableCellProperties());
//return tc;
return tableCell3;
}
}
}