無法使用OLEDB驅動程序讀取Excel工作表

Question

我有一個帶有一個工作表的excel文件。 我正在使用MicroSoft.Office.Interop.Excel讀取此文件，然后執行進一步的執行。

這是我的代碼：

 connString = "Provider=Microsoft.Jet.OLEDB.4.0; Data Source=" + strNewPath + ";Extended Properties=Excel 8.0;";
               conn = new OleDbConnection(connString);
                if (conn.State == ConnectionState.Closed)
                    conn.Open();
                System.Data.DataTable dt = null;
                dt = conn.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, null);

但是，工作表不在數據表對象中。

Answer 1

你在哪里提到過表（WorkSheet）的名字？

    DataTable schemaTable = conn.GetOleDbSchemaTable(OleDbSchemaGuid.Tables,
                                                       new object[] {null, null, null, "TABLE"});

//Get the First Sheet Name
        string firstSheetName = schemaTable.Rows[0][2].ToString(); 

        //Query String 
        string sql = string.Format("SELECT * FROM [{0}],firstSheetName); 

請參閱MSDN

如果你想玩游戲，請參閱從C＃讀取Excel文件

Answer 2

OleDbConnection oconn = new OleDbConnection（@“Provider = Microsoft.ACE.OLEDB.12.0; Data Source =”+ fileName +“; Extended Properties = Excel 12.0;”）;

        //After connecting to the Excel sheet here we are selecting the data 
        //using select statement from the Excel sheet
        oconn.Open();
        DataTable dbSchema = oconn.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, null);
        if (dbSchema == null || dbSchema.Rows.Count < 1)
        {
            throw new Exception("Error: Could not determine the name of the first worksheet.");
        }
        string firstSheetName = dbSchema.Rows[0]["TABLE_NAME"].ToString();

        string tbstrat = "M1000";
        OleDbCommand cmd = new OleDbCommand();
        cmd.Connection = oconn;
        cmd.CommandText = "select * from [" + firstSheetName + "B8:" + tbstrat + "]";
        OleDbDataAdapter adap = new OleDbDataAdapter();
        DataTable dt = new DataTable();
        adap.SelectCommand = cmd;
        adap.Fill(dt);
        oconn.Close();

Answer 3

即使你可以試試這個

var adapter = new OleDbDataAdapter("SELECT * FROM [workSheetNameHere$]", connectionString);
var ds = new DataSet();

adapter.Fill(ds, "NameHere");

DataTable data = ds.Tables["NameHere"];