运行加载数据

//运行加载数据

private void Form1_Load(object sender, EventArgs e)

{

SqlConnection conn = new SqlConnection("server=.;database=Forum;uid=sa;pwd=123456");

conn.Open();

string sql = "select * from Post";

SqlCommand comd = new SqlCommand(sql, conn);

DataSet ds = new DataSet();

SqlDataAdapter da = new SqlDataAdapter(comd);

//放数据到DateSet前，先清除之前的数据

ds.Clear();

da.Fill(ds);

comd.ExecuteNonQuery();

this.ddView.DataSource = ds.Tables[0].DefaultView;

ds = null;

da = null;

comd.Dispose();

conn.Close();

}