Question

我正在使用EPPlus。

但是我的文件类型有问题，因为在我工作的地方，我们使用的管理系统仅将@Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); FirebaseApp.initializeApp(this); setContentView(R.layout.activity_ichild); String uid = FirebaseAuth.getInstance().getCurrentUser().getUid(); FirebaseFirestore rootRef = FirebaseFirestore.getInstance(); DocumentReference uidRef = rootRef.collection("RootCollection").document(uid); POJO pojo = new POJO(); uidRef.set(pojo); fetch=findViewById(R.id.fetchDocument); firestore = FirebaseFirestore.getInstance(); upload =findViewById(R.id.uploadText); upload.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { POJO pojo = new POJO(); pojo.setValue("Hello World"); //below code creates collection, creates a inner doc. and uploads the value (pojo) firestore.collection("RootCollection").document("MyDoc") .set(pojo).addOnSuccessListener(new OnSuccessListener<Void>() { @Override public void onSuccess(Void aVoid) { //gets called if upload is successful Toast.makeText(ichild.this,"Upload is successful", Toast.LENGTH_SHORT).show(); } }).addOnFailureListener(new OnFailureListener() { @Override public void onFailure(@NonNull Exception e) { Toast.makeText(ichild.this,"Upload is not successful" + e.getMessage(), Toast.LENGTH_SHORT).show(); } }); } });读取为excel文件。

我尝试将文档另存为SpreadSheet XML 2003，但没有获得SpreadSheet XML 2003 excel格式

xml

如何使用带有epplus的电子表格xml 2003格式生成Excel？或我可以使用哪个图书馆？

非常感谢！

Answer 1

我不想使用此解决方案，因为它使用Microsoft.Office.Interop并且并非所有计算机都安装了excel，但是，我回答了这个问题，因为在我的情况下有人会用到。

Microsoft.Office.Interop.Excel.Application xlApp = new Microsoft.Office.Interop.Excel.Application();
Microsoft.Office.Interop.Excel.Workbook book = null;
bool status = false;
try 
    { 
    var originalPath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments), "CodigoInteligente" , "Originales" , "Articulos.xls");
    var oldFile = new FileInfo(originalPath);
    if (!oldFile.Exists)
        {
            return false;
        }
    var newPath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments), "CodigoInteligente", "Articulos.xls");
    var newFile = new FileInfo(newPath);
    if (newFile.Exists)
        {
        if (IsFileLocked(newFile))
            {
                return false;
            }
        newFile.Delete();
        }
    book = xlApp.Workbooks.Open(originalPath);
    book.SaveAs(newPath, Microsoft.Office.Interop.Excel.XlFileFormat.xlXMLSpreadsheet);
    status = true;
    }
    catch(Exception ex)
    {
        System.Windows.Forms.MessageBox.Show("Hubo un error");
        Logs.agregarLog(ex);
        return false;
    }
    finally
        {                
        book.Close(false);
        xlApp.Quit();
        System.Runtime.InteropServices.Marshal.ReleaseComObject(book);
        System.Runtime.InteropServices.Marshal.ReleaseComObject(xlApp);
        }
return status;

使用epplus将Excel保存为电子表格XML 2003

1 个答案: