将Excel导入DataGridView 中的"select * from [Sheet1$]"中[ ]里面表单名的动态获取

Sheet1$是Excel默认的第一个表名，如果改动：select * from [Sheet1$]"将查询失败，因此应根据选择自动获取excel表名：

OpenFileDialog ofd = new OpenFileDialog();  //选择文件路径
    ofd.Title = "Excel文件";
    ofd.FileName = "";
    ofd.Filter = "Excel文件(*.xls)| *.xls";
string Path = ofd.FileName;
string tableName = "";

string strConn = "Provider=Microsoft.Jet.OLEDB.4.0;" + "Data Source=" + Path + ";" + "Extended Properties=Excel 8.0;";
OleDbConnection conn = new OleDbConnection(strConn);
conn.Open();
System.Data.DataTable sTable = conn.GetOleDbSchemaTable(System.Data.OleDb.OleDbSchemaGuid.Tables, null);
tableName = sTable.Rows[0][2].ToString().Trim();

for (int i = 0; i < sTable.Rows.Count; i++)
{
    schemaTable.Rows[i][2].ToString().TrimStart('\'').Trim('\'', '$');
}

string strExcel = "select * from [" + tableName + "]";
OleDbDataAdapter myCommand = new OleDbDataAdapter(strExcel, strConn);
DataSet ds = new DataSet();
DataTable table1 = new DataTable();
myCommand.Fill(table1);
//==========最后绑定
dataGridView1.DataSource = table1;