C# 读取Excel

直接添代码:

C# 读取Excel
 public void connExcel(string strPath)

        {

            //string strConn = @"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + strPath + ";Extended Properties='Excel 8.0;HDR=YES;IMEX=1';";

            string strConn = @"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + strPath + ";Extended Properties='Excel 12.0;HDR=YES;IMEX=1';";

            

            OleDbDataReader myDataReader = null;

            OleDbConnection myOleDbConnection = new OleDbConnection(strConn);

            OleDbCommand myOleDbCommand = new OleDbCommand("SELECT * FROM [Sheet1$]", myOleDbConnection);



            try

            {

                myOleDbConnection.Open();

                myDataReader = myOleDbCommand.ExecuteReader();

                while (myDataReader.Read())

                {

                    Console.WriteLine("序号:" + myDataReader.GetValue(0));//列1

                    Console.WriteLine("标题:" + myDataReader.GetValue(1));//列2

                    Console.WriteLine("预期结果:" + myDataReader.GetValue(2));//列3

                }

            }

            catch (Exception ex)

            {

                Console.WriteLine(ex.ToString());

            }

            finally

            {

                // Always call Close when done reading.

                if (myDataReader != null)

                    myDataReader.Close();



                // Close the connection when done with it.

                if (myOleDbConnection != null)

                    myOleDbConnection.Close();

            }

        }
View Code

 

遇到问题:

1.open时,报“找不到可安裝的ISAM解決方法”

解决方法:'Excel 8.0;HDR=Yes;IMEX=1;'这个要用单引号引起来

2.报错:外部表不是预期的格式错误

错误原因1: 由于Excel 97-2003的连接格式与Excel 2010 的 不同造成。

解决方法:

//2003(Microsoft.Jet.Oledb.4.0)
string strConn = string.Format("Provider=Microsoft.Jet.OLEDB.4.0;Data Source={0};Extended Properties='Excel 8.0;HDR=Yes;IMEX=1;'", excelFilePath);

//2007 , 2010(Microsoft.ACE.OLEDB.12.0)
string strConn = string.Format("Provider=Microsoft.ACE.OLEDB.12.0;Data Source={0};Extended Properties='Excel 12.0;HDR=Yes;IMEX=1;'", excelFilePath);

3.Access有密碼設置時,當用C#連接Access Database時可能會出現"找不到可安裝的ISAM"。

解决方法:string dsn = "Provider=Microsoft.Jet.OLEDB.4.0;Jet OLEDB:DataBase Password=123;Data Source=C:\\...\\*.mdb";

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