数据库连接字符串已知,要通过编程获取数据库中Employees表中数据,并绑定到GridView控件上。后台编写代码如下,空白处的代码应为( )。string strcnn = ConfigurationManager.ConnectionStrings["StudentCnnString"].ConnectionString;
using (SqlConnection conn = new SqlConnection(strcnn))
{
DataSet ds = new DataSet( );
SqlDataAdapter da = new SqlDataAdapter("select * from Employees", ____________);da.Fill(ds);GridView1._____________= ds.Tables[0];