检索数据从Excel中含有一种特殊字符使用OLEDB C＃

Question

我有一个Excel工作表三列：

1. 公司名称
2. PHONENO
3. EMAILID

当我尝试获取数据从Excel中，如果工作表包含PhoneNo列中的012-231564数据类型，则生成的DataSet包含空白单元格

var connString = string.Format("Provider=Microsoft.Jet.OleDb.4.0; 
Data Source={0};Extended Properties=\"Text;HDR=YES;FMT=Delimited\"", 
Path.GetDirectoryName(Server.MapPath("~/DataMiningFiles/" + StrFileName))); 

var query = "SELECT * FROM [" + Path.GetFileName(Server.MapPath("~/DataMiningFiles/" + StrFileName)) + "]"; 

using (var adapter = new OleDbDataAdapter(query, conn)) { 
    var ObjGetExcelData = new DataSet("CSV File"); 
    adapter.Fill(ObjGetExcelData); 
} 

Answer 1

有很多我会改变这个tbh。所以让我们看看...

1. 我不会使用该驱动程序，因为它是obselete。使用Microsoft.ACE.OLEDB.12.0
2. 您需要指定IMEX = 1才能导入混合数据类型。
3. 您的扩展属性指定了文本文件导入，但您已经说过要导入excel。如果这样指定。

4. 一般来说，我会按桌子读这张表。我不熟悉你试图将这些内容读入DataSet中。如果我在新的一年感到厌倦，我可能会去。这个例子将然而工作...

   string sConnectionString = "Provider=Microsoft.ACE.OLEDB.12.0;" + 
             "Data Source=e:\\Test.xlsx;" + 
             "Extended Properties=\"Excel 12.0;HDR=Yes;IMEX=1\""; 
   
   OleDbConnection oConnection = new OleDbConnection(); 
   oConnection.ConnectionString = sConnectionString; 
   oConnection.Open(); 
   
   //Find all readable Named Ranges and Worksheets 
   DataTable ExcelSheetNames = oConnection.GetSchema("Tables"); 
   
   foreach (DataRow SheetNameRow in ExcelSheetNames.Rows) 
   { 
       string SheetName = (string)SheetNameRow["Table_Name"]; 
   
       //Only handle WorkSheets. Named Ranges are otherwise named. 
       if (SheetName.EndsWith("$") | SheetName.EndsWith("$'")) 
       { 
        DataTable SheetContents = new DataTable(); 
   
        //Read the contents of the sheet into a DataTable 
        using (OleDbCommand oCmd = new OleDbCommand("Select * From [" + SheetName + "]", oConnection)) 
        { 
         SheetContents.Load(oCmd.ExecuteReader()); 
        } 
   
        //You can also put the DataTable load on one line (I do) 
        //SheetContents.Load(new OleDbCommand("Select * From [" + SheetName + "]", oConnection).ExecuteReader()); 
   
        //Print the content of cells A2..C2 to the console window 
        Console.WriteLine(SheetContents.Rows[0].ItemArray[0]); 
        Console.WriteLine(SheetContents.Rows[0].ItemArray[1]); 
        Console.WriteLine(SheetContents.Rows[0].ItemArray[2]); 
   
       } 
   } 
   
   oConnection.Close(); 
   

顺便说一句，请尽量避免使用“VAR”变量。强烈地键入它们，你会在以后节省自己和其他人很多心痛。

如果你知道你想读，你可以简单地将其所有代码作为工作表的名称...

string sConnectionString = "Provider=Microsoft.ACE.OLEDB.12.0;" + 
           "Data Source=e:\\Test.xlsx;" + 
           "Extended Properties=\"Excel 12.0;HDR=Yes;IMEX=1\""; 

    OleDbConnection oConnection = new OleDbConnection(); 
    oConnection.ConnectionString = sConnectionString; 
    oConnection.Open(); 

    DataTable SheetContents = new DataTable(); 

    SheetContents.Load(new OleDbCommand("Select * From [Sheet1$]", oConnection).ExecuteReader()); 

    Console.WriteLine(SheetContents.Rows[0].ItemArray[0]); 
    Console.WriteLine(SheetContents.Rows[0].ItemArray[1]); 
    Console.WriteLine(SheetContents.Rows[0].ItemArray[2]); 

    oConnection.Close();