C#【数据库】 Excel打开到DataGridView

if (openFileDialog1.ShowDialog() == DialogResult.OK)
{

Filename = openFileDialog1.FileName;

string strCon = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + Filename + ";Extended Properties='Excel 8.0;IMEX=1'";
System.Data.OleDb.OleDbConnection Conn = new System.Data.OleDb.OleDbConnection(strCon);
string strCom = "SELECT * FROM [Sheet1$]";
Conn.Open();
System.Data.OleDb.OleDbDataAdapter myCommand = new System.Data.OleDb.OleDbDataAdapter(strCom, Conn);
DataSet ds = new DataSet();
myCommand.Fill(ds, "[Sheet1$]");
temp.DataSource = ds.Tables[0];
Conn.Close();

}