PowerpointMerger 合併數個ppt檔案

解決向上級匯報時, 生不出素材的困擾.
我是採用Office 2007的系統, powerpoint object model是不一樣的.

執行檔下載點
參考資料:
Simple Powerpoint automation using C#
MSDN Office development

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.IO;
using Microsoft.Office.Core;
using PowerPoint = Microsoft.Office.Interop.PowerPoint;

namespace PowerpointMerger
{
    public partial class Form1 : Form
    {
        static int MAX_SLIDE_NUMBER = 10;
        string[] filepath = new string[MAX_SLIDE_NUMBER];
        string templatePath;

        PowerPoint.Application objApp;
        PowerPoint.Presentations objPresSet;
        PowerPoint._Presentation objPresMerged;
        
        PowerPoint.Slides objSlidesMerged;
        
        //PowerPoint.Slides objSlidesSrc; //來源的ppt slides
        //PowerPoint.Slides objSlidesDst; //合併的目標ppt slides        

        public Form1()
        {
            InitializeComponent();
        }        

        public void start()
        {
          
            //Create a new presentation based on a template.
            objApp = new PowerPoint.Application();
            objApp.Visible = MsoTriState.msoTrue;
            
            objPresSet = objApp.Presentations;
            if (File.Exists(templatePath))
            {
                // 開啟template
                objPresMerged = objPresSet.Open(templatePath, MsoTriState.msoTriStateMixed, MsoTriState.msoTrue, MsoTriState.msoTrue);
            }
            else
            {
                objPresMerged = objPresSet.Add(MsoTriState.msoTrue); //產生一個新的
            }
            objSlidesMerged = objPresMerged.Slides; // 取得新的merged slides

            // merge slides                      
            int numSlides = 0;
            for (int i = 0; i < MAX_SLIDE_NUMBER; i++)
            {
               numSlides = MergeSlide(this.objSlidesMerged, filepath[i], numSlides);
            }

            // save as a copy to ..
            // objPresMerged.SaveCopyAs("E:\\test_new.ppt", Microsoft.Office.Interop.PowerPoint.PpSaveAsFileType.ppSaveAsDefault, MsoTriState.msoTrue);
            // objApp.Quit();
        }

        private int MergeSlide(PowerPoint.Slides objSlidesMerged, string path, int numSlides)
        {            
            if (File.Exists(path))
            {
                PowerPoint._Presentation ps = objPresSet.Open(path, MsoTriState.msoTrue, MsoTriState.msoTrue, MsoTriState.msoFalse);
                // expression.InsertFromFile(FileName, Index插入點, SlideStart來源檔起始點, SlideEnd來源檔結束點)
                int numInserted = objSlidesMerged.InsertFromFile(path, numSlides, 1, ps.Slides.Count);
                numSlides += numInserted;
            }
            return numSlides;
        }

        /// <summary>
        /// 將檔案路徑設定到filepath陣列, 方便merge時以迴圈處理.
        /// </summary>
        /// <param name="index"></param>
        /// <param name="path"></param>
        private void setFilePath(int index, string path)
        {
            filepath[index] = path;
        }

        private void buttonStart_Click(object sender, EventArgs e)
        {
            start();
        }

        private void btn1_Click(object sender, EventArgs e)
        {
            openFileDialog1 = new OpenFileDialog();
            openFileDialog1.Filter = "Powerpoint files (*.ppt)|*.ppt";            
            if (openFileDialog1.ShowDialog() == DialogResult.Cancel)
                return;
            textBox1.Text = openFileDialog1.FileName;
            setFilePath(0, textBox1.Text);
        }

        private void btn2_Click(object sender, EventArgs e)
        {
            openFileDialog2 = new OpenFileDialog();
            openFileDialog2.Filter = "Powerpoint files (*.ppt)|*.ppt";            
            if (openFileDialog2.ShowDialog() == DialogResult.Cancel)
                return;
            textBox2.Text = openFileDialog2.FileName;
            setFilePath(1, textBox2.Text);
        }

        private void btn3_Click(object sender, EventArgs e)
        {
            openFileDialog3 = new OpenFileDialog();
            openFileDialog3.Filter = "Powerpoint files (*.ppt)|*.ppt";            
            if (openFileDialog3.ShowDialog() == DialogResult.Cancel)
                return;
            textBox3.Text = openFileDialog3.FileName;
            setFilePath(2, textBox3.Text);
        }

        private void btn4_Click(object sender, EventArgs e)
        {
            openFileDialog4 = new OpenFileDialog();
            openFileDialog4.Filter = "Powerpoint files (*.ppt)|*.ppt";            
            if (openFileDialog4.ShowDialog() == DialogResult.Cancel)
                return;
            textBox4.Text = openFileDialog4.FileName;
            setFilePath(3, textBox4.Text);
        }

        private void btn5_Click(object sender, EventArgs e)
        {
            openFileDialog5 = new OpenFileDialog();
            openFileDialog5.Filter = "Powerpoint files (*.ppt)|*.ppt";            
            if (openFileDialog5.ShowDialog() == DialogResult.Cancel)
                return;
            textBox5.Text = openFileDialog5.FileName;
            setFilePath(4, textBox5.Text);
        }

        private void btnTemplate_Click(object sender, EventArgs e)
        {
            openFileDialogTemplate = new OpenFileDialog();
            openFileDialogTemplate.Filter = "Powerpoint files (*.ppt)|*.ppt";
            if (openFileDialogTemplate.ShowDialog() == DialogResult.Cancel)
                return;
            
            templatePath = openFileDialogTemplate.FileName;
            textBox6.Text = templatePath;
        }
    }
}