OleDB 读取 excel 但返回错误的数字格式

Question

我需要帮助来阅读一列中混合类型的 Excel。 我有一列这样的值

080810235707 -> text type
614810003481 -> text type
150130301951 -> text type
612130001653 -> text type
612130000354 -> text type
612130001926 -> text type
612810001877 -> text type
81130518669 -> numeric type
81130518614 -> numeric type
612130001686 -> text type
612130001119 -> text type

这是我的连接字符串：

string connectionString = String.Format(@"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + _view.FileName + ";Extended Properties = 'Excel 8.0; HDR=Yes; IMEX=1; ImportMixedTypes=Text; TypeGuessRows=0' ");

而OleDB读取结果是错误的：

080810235707
614810003481
150130301951
612130001653
612130000354
612130001926
612810001877
8.11305e+010 -> the numeric become like this
8.11305e+010 -> the numeric become like this
612130001686
612130001119

如何设置 OleDB 使其以文本类型而不是数字读取所有内容？ 谢谢

---

编辑

这是我读取excel的代码，如何实现转换列类型的代码：

DataSet ds = new DataSet();
string connectionString = String.Format(@"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + _view.FileName + ";Extended Properties = 'Excel 8.0; HDR=Yes; IMEX=1; ImportMixedTypes=Text; TypeGuessRows=0' ");


 OleDbConnection conn = new OleDbConnection(connectionString);
 conn.Open();
 dtSchemaTemp = conn.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, new object[] { null, null, null, "TABLE" });
 conn.Close();

strSheetTemp = dtSchemaTemp.Rows[i]["TABLE_NAME"].ToString();
OleDbDataAdapter adapter = new OleDbDataAdapter("SELECT * FROM [" + strSheetTemp + "]", connectionString);

adapter.Fill(ds, "ExcelData");
DataTable dt = ds.Tables["ExcelData"];

Answer 1

在读取 excel 文件时，您可以使用 NUMBERFORMAT 格式化单元格，也可以将范围转换为 TEXT。

检查方法1）将工作表单元格格式化为文本的位置：

 // Pull in all the cells of the worksheet
 Range cells = xlWorkBook.Worksheets[1].Cells;

 // set each cell's format to Text
 cells.NumberFormat = "@";

检查方法2）在哪里可以读取excel并将特定范围格式化为TEXT。

_workSheet = (Excel.Worksheet)_workBook.ActiveSheet;

//Replace A1 with your cell range
_range = _workSheet.get_Range("A1", "A1");

//set the format
_range.NumberFormat = "Text";

//save the changes back to the workbook
_workBook.Save()