This command is not available because no document is open C# WPF

Question

I am Generating XPS document from Word document recursively but I am getting the error below:

Error:

This command is not available because no document is open. at Miscrosoft.office.interop.Word.ApplicationClass.get_ActiveDo‌​cument at Line 65

which is:

wordApp.ActiveDocument.SaveAs2(xpsFile, FileFormat: Word.WdSaveFormat.wdFormatXPS);

I am using the Following Code to convert the Word Files to XPS files

public static string convertWordToXps(string path, string wordDocName)
{
    Word.Application wordApp = new Word.Application();
    wordApp.Documents.Open(string.Concat(path, "\\", wordDocName), ConfirmConversions: false, ReadOnly: false);

    string xpsFile = string.Concat(path, "\\", Path.GetFileNameWithoutExtension(wordDocName), ".xps");

    try
    {
        //wordApp.ActiveDocument.ExportAsFixedFormat(xpsFileName, WdExportFormat.wdExportFormatXPS, false, WdExportOptimizeFor.wdExportOptimizeForOnScreen, WdExportRange.wdExportAllDocument, 1, 1, WdExportItem.wdExportDocumentContent, false, true, WdExportCreateBookmarks.wdExportCreateNoBookmarks, false, true, false, nullObject);
        wordApp.ActiveDocument.SaveAs2(xpsFile, FileFormat: Word.WdSaveFormat.wdFormatXPS);
        return xpsFile;
    }
    catch (Exception e)
    {
        MessageBox.Show(e.getDetailedErrorMessage());
    }
    finally
    {
        wordApp.Quit(SaveChanges: false, OriginalFormat: Type.Missing, RouteDocument: Type.Missing);
    }
    return null;
}

Search Function

private void SearchDocuments(string directoryPath)
{
    try
    {
        foreach (string fullName in Directory.GetFiles(directoryPath, "*.odt"))
        {
            InstructionsViewModel.convertWordToXps(System.IO.Path.GetDirectoryName(fullName), System.IO.Path.GetFileNameWithoutExtension(fullName));
        }
        foreach (string nestedDirectory in Directory.GetDirectories(directoryPath))
        {
            SearchDocuments(nestedDirectory);
        }
    }
    catch (System.Exception error)
    {

    }
}

I want to convert all the Word files to XPS inside all the folders.

Answer 1

Before saving try to activate your document

wordApplication= new Microsoft.Office.Interop.Word.Application();
var document= wordApplication.Documents.Open(@"path/to/document.docx");  
document.Activate();
// and now save.

In your code it would look like:

public static string convertWordToXps(string path, string wordDocName)
{
    Word.Application wordApp = new Word.Application();
    var document= wordApp.Documents.Open(string.Concat(path, "\\", wordDocName), ConfirmConversions: false, ReadOnly: false);
    document.Activate();
    string xpsFile = string.Concat(path, "\\", Path.GetFileNameWithoutExtension(wordDocName), ".xps");

    try
    {
        //wordApp.ActiveDocument.ExportAsFixedFormat(xpsFileName, WdExportFormat.wdExportFormatXPS, false, WdExportOptimizeFor.wdExportOptimizeForOnScreen, WdExportRange.wdExportAllDocument, 1, 1, WdExportItem.wdExportDocumentContent, false, true, WdExportCreateBookmarks.wdExportCreateNoBookmarks, false, true, false, nullObject);
        wordApp.ActiveDocument.SaveAs2(xpsFile, FileFormat: Word.WdSaveFormat.wdFormatXPS);
        return xpsFile;
    }
    catch (Exception e)
    {
        MessageBox.Show(e.getDetailedErrorMessage());
    }
    finally
    {
        wordApp.Quit(SaveChanges: false, OriginalFormat: Type.Missing, RouteDocument: Type.Missing);
    }
    return null;
}