使用SqlDataAdapter对象填充数据集

protected void Page_Load(object sender, EventArgs e)
{
FillData();
}

private void FillData()
{
string conString = ConfigurationManager.ConnectionStrings["SQLCONNECTIONSTRING"].ConnectionString;
using (SqlConnection myCon = new SqlConnection(conString))
{
using (SqlDataAdapter da = new SqlDataAdapter("select top 10 * from catalog order by id desc", myCon))
{
DataSet ds = new DataSet();
try
{
myCon.Open();
da.Fill(ds);
ShowData(ds);
}
catch (Exception ex)
{
throw ex;
}
finally
{
myCon.Close();
}
}
}
}

private void ShowData(DataSet ds)
{
if (ds.Tables.Count <= 0)
{
return;
}

StringBuilder sb = new StringBuilder();
sb.Append("<table border=1>");
sb.Append("<tr>");
for (int i = 0; i < ds.Tables[0].Columns.Count; i++)
{
sb.Append("<td bgcolor=gray>");
sb.Append(ds.Tables[0].Columns[i].ColumnName);
sb.Append("</td>");
}
sb.Append("</tr>");

foreach (DataRow row in ds.Tables[0].Rows)
{
sb.Append("<tr>");
for (int i = 0; i < row.ItemArray.Length; i++)
{
sb.Append("<td>");
sb.Append(row.ItemArray[i].ToString());
sb.Append("</td>");
}
sb.Append("</tr>");
}
sb.Append("</table>");
sb.Append("<hr>");
Response.Write(sb.ToString());
}