PDF conversion version issue

Question

I am converting word files to PDF using word automation service using event receiver ItemCheckedIn event. I have selected major-minor version settings in Versioning Settings. in The code works fine except it overwrite current file and does not change the version. below is my code sample:

public override void ItemCheckedIn(SPItemEventProperties properties) {

    //////collFiles = m1list.RootFolder.Files;
    ////SPFile sourceFile = collFiles[Convert.ToString(items[0][SPBuiltInFieldId.EncodedAbsUrl])];
    SPListItem curfileitem = properties.ListItem;

    SPFile sourceFile = properties.ListItem.File;
    SPList m1list = properties.List;
    //SPFile sourceFile = curfileitem.File;
    if (sourceFile == null) {
        return;
    }

    SPSite sitename = properties.Site;
    SPWeb webname = properties.Web;
    SPSite sitename2 = webname.Site;
    SPFolder destFolder = m1list.RootFolder;
    SPFile destFile = null;
    string sourceFileName = sourceFile.Name.Trim();
    string filepath = sourceFile.Url;
    string destFileName = sourceFileName.Substring(0, sourceFileName.LastIndexOf('.')) + ".pdf";
    //// destFile = destFolder.Files.Add(destFileName, this.ConvertWordToPDF(sourceFile, SPContext.Current.Site.UserToken), true);

    destFile = m1list.RootFolder.Files.Add(destFileName, ConvertWordToPDF(sourceFile, sitename.UserToken, sitename2), true);

    if (destFile != null) {
        SPListItem sourceitem = sourceFile.Item;
        if (destFile.CheckOutType != SPFile.SPCheckOutType.None) {
            destFile.CheckIn(string.Empty);
        }
    }
}

private byte[] ConvertWordToPDF(SPFile spfile, SPUserToken usrToken, SPSite sitefortoken) {
    byte[] result = spfile.OpenBinary();
    try {
        using(Stream read = spfile.OpenBinaryStream()) {
            using(MemoryStream write = new MemoryStream()) {
                if (Path.GetExtension(spfile.Title) == ".docx" || Path.GetExtension(spfile.Title) == ".doc" || Path.GetExtension(spfile.Name) == ".docx" || Path.GetExtension(spfile.Name) == ".doc") {
                    WordServiceApplicationProxy proxy = (WordServiceApplicationProxy)
                    SPServiceContext.GetContext(sitefortoken)
                        .GetDefaultProxy(typeof(WordServiceApplicationProxy));
                    //SyncConverter sc = new SyncConverter((WordServiceApplicationProxy)proxy);

                    SyncConverter sc = new SyncConverter(proxy);
                    //SyncConverter sc = new SyncConverter(proxy);
                    sc.UserToken = usrToken;
                    sc.Settings.UpdateFields = true;
                    sc.Settings.OutputFormat = SaveFormat.PDF;
                    //// Convert to PDF
                    ConversionItemInfo info = sc.Convert(read, write);
                    if (info.Succeeded) {
                        result = write.ToArray();
                    }
                }
            }
        }
    } catch (Exception ex) {
        throw ex;
    }

    return result;
}

Thanks in advance.

Answer 1

Before adding file to destination folder

destFile = m1list.RootFolder.Files.Add(destFileName, ConvertWordToPDF(sourceFile, sitename.UserToken, sitename2), true);

You should first check if the file exist at destination or not. If it exist then you first checkout existing file. Then add new file and then check in and publish the file.

public bool CheckFileExistsorNot(SPFileCollection destFiles, string name) {
    bool fileExists = false;
    for (int noOfFile = 0; noOfFile < destFiles.Count; noOfFile++) {
        SPFile tempFile = destFiles[noOfFile];
        if (tempFile.Name.Equals(name, StringComparison.InvariantCultureIgnoreCase)) {
            fileExists = true;
            break;
        }
    }

    return fileExists;
}

With this above function your code should be like below

 if (CheckFileExistsorNot(filecollection, pdfFileName)) {
    SPFile myFile = filecollection[pdffileurl];
    myFile.CheckOut();
    //adding file code
 } else {
    //adding file code
 }

Hope this will helps !!