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本系列教程將為大家?guī)?lái)Spire.Doc for .NET在使用過(guò)程中的各類實(shí)際操作，上一篇講解如何在C# Word 中添加、修改和提取 OLE，本文將繼續(xù)介紹如何刪除OLE對(duì)象。

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OLE（Object Linking and Embedding，對(duì)象連接與嵌入）是一種面向?qū)ο蟮募夹g(shù)。OLE分為兩種形式，一種是嵌入，一種是鏈接。前者是將對(duì)象嵌入到文檔中，不管外部對(duì)象怎么更改都是以嵌入操作當(dāng)時(shí)的對(duì)象為準(zhǔn)，之后不再改變。而后者是以鏈接形式來(lái)保存對(duì)象的，外部任何對(duì)該對(duì)象的更改都會(huì)影響文檔。

刪除OLE

測(cè)試文檔中的OLE對(duì)象如下：

using Spire.Doc;
using Spire.Doc.Documents;
using Spire.Doc.Fields;
using System.IO;


namespace DeleteOLE_Doc
{
    class Program
    {
        static void Main(string[] args)
        {
            //實(shí)例化一個(gè)Document對(duì)象，加載一個(gè)包含OLE對(duì)象的文檔
            Document doc = new Document();
            doc.LoadFromFile(@"test.docx");

            //遍歷文檔所有Section          
            foreach (Section sec in doc.Sections)
            {
                //遍歷Section下面所有的子元素
                foreach (DocumentObject obj in sec.Body.ChildObjects)
                {
                    if (obj is Paragraph)
                    {
                        Paragraph par = obj as Paragraph;
                        
                           //遍歷段落中的對(duì)象
                        for (int i = 0; i < par.ChildObjects.Count;i++ )
                        {
                            DocumentObject o = par.ChildObjects[i];
                            
                            //獲取ole對(duì)象
                            if (o.DocumentObjectType == DocumentObjectType.OleObject)
                            {
                                DocOleObject Ole = o as DocOleObject;
                                string s = Ole.ObjectType;

                                if (s == "AcroExch.Document.11")//"AcroExch.Document.11"是指PDF對(duì)象對(duì)應(yīng)的ProgID
                                {
                                    //刪除ole對(duì)象
                                    obj.ChildObjects.Remove(Ole);
                                }

                                else if (s == "Excel.Sheet.12")//"Excel.Sheet.12"是指 Excel03之后的工作表對(duì)應(yīng)的ProgID
                                {
                                    //刪除ole對(duì)象
                                    obj.ChildObjects.Remove(Ole);
                                    
                                }

                                else if (s == "Word.Document.12") //"Word.Document.12"是指03之后的Word對(duì)應(yīng)的ProgID
                                {
                                    //刪除ole對(duì)象
                                    obj.ChildObjects.Remove(Ole);
                                    
                                }
                            }
                        }
                    }
                }
            }

            //保存文檔
            doc.SaveToFile("DeleteOLE.docx",FileFormat.Docx2013);
        }
    }
}

OLE對(duì)象刪除結(jié)果：