asp.net DataSet的问题 请教各位。

来源：百度知道 编辑：UC知道 时间：2024/06/14 19:37:10
代码如下，详细错误请看图片。

小弟刚学.NET ,拜托各位先辈帮我看看这几个错误是出在哪里的 怎么修改，在此谢过！

using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Data.SqlClient;

public partial class DataSet : System.Web.UI.Page
{
private string ConnString = ConfigurationManager.ConnectionStrings["CONNSTR"].ConnectionString;
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack) {
TestDataAdapterDataSet();
}
}
private void TestDataAdapterDataSet() {
SqlConnection myConnection = new SqlConnection(ConnString);
string cmdString = "SELECT * FROM Users";
SqlDataAdapter myda = new SqlDataAdapter(cmdStri

修改如下：

using System;
using System.Data;
using System.Data.SqlClient;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;

public partial class _Default : System.Web.UI.Page
{

private string ConnString = ConfigurationManager.ConnectionStrings["CONNSTR"].ConnectionString;
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
TestDataAdapterDataSet();
}
}
private void TestDataAdapterDataSet()
{
SqlConnection myConnection = new SqlConnection(ConnString);
string cmdString = "SELECT * FROM Users";
SqlDataAdapter myda = new SqlDataAdapter(cmdString