Display the slide number and the total slides in PowerPoint 2007

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One of my customers asked me a question about PowerPoint 2007. He wanted to have the slide number and the total number of the slides in his presentations (ie: 3/45). I quickly developped a VSTO 3.0 Addin and here is the code. I created a Ribbon Button to call this method. I simply put this method in the ThisAddin.cs file:

        /// <summary>

        /// Format the slide numbers with: number/total number

        /// </summary>

        public void FormatSlideNumbers()

        {

            int iSlides = 0;

            string SlideCounterName = "Slide Number Placeholder";

            try

            {

               

                // For every Slide in the Active Presentation

                for ( iSlides = 1; iSlides <= this.Application.ActivePresentation.Slides.Count; iSlides++)

                {

                    // For every Shape in the Slide

                    foreach (PowerPoint.Shape myShape in Application.ActivePresentation.Slides[iSlides].Shapes)

                    {

                        // Check the shape containing "Slide Number Placeholder"

        if (myShape.Name.Contains(SlideCounterName))

                        {

                            string CurrentslideNumber = iSlides.ToString();

                            // Change the Slide's placeholder's name

                       myShape.TextFrame.TextRange.Text = CurrentslideNumber + @"/" + this.Application.ActivePresentation.Slides.Count.ToString();

                            myShape.Width = PowerPointAddInTools.Properties.Settings.Default.SlideWidth;

                        }

                    }

                }

            }

            catch (Exception ex)

            {

                System.Windows.Forms.MessageBox.Show("An error has occured: " + ex.Message, "PowerPoint Tools", System.Windows.Forms.MessageBoxButtons.OK, System.Windows.Forms.MessageBoxIcon.Error);

            }

Enjoy !

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