String sqlCheckPass =
"Select * from Login where Username like @Username and Password like @Password";
SqlCommand SqlCom = new SqlCommand(sqlCheckPass, myConnection);
SqlCom.Parameters.Add(new SqlParameter("@Username", sUserName));
SqlCom.Parameters.Add(new SqlParameter("@Password", sPassword));
myConnection.Open();
SqlDataReader myreader;
myreader = SqlCom.ExecuteReader();
int id = -1;
ErrorBox.InnerHtml = "Username:" + sUserName + ":" + sPassword + ":<br/>";
while (myreader.HasRows)
{
id = (int)myreader["id"];
String sUser = (String)myreader["Username"];
String sPass = (String)myreader["Password"];
ErrorBox.InnerHtml += "UserId is <b>" + id + "</b> " + sUser + ":" + sPass + ":<br >";
Session["LoginID"] = id;
Server.Transfer(ReturnPage);
}
if (id == -1)
{
ErrorBox.InnerHtml = "Incorrect Password";
}
myConnection.Close();
catch (Exception err)
{
ErrorBox.InnerHtml = "Error Getting Option ID" + err.Message;
}
我在myreader = SqlCom.ExecuteReader()上添加了一个断点。并且它一直返回myreader为空,并且HasRows = False,但它确实有行。所以,它不断验证我的登录不正确,因为id = -1,C#SqlDataReader = null?
帮助?
要发布的代码应该是“SqlCom”的代。 – 2010-03-23 14:43:56
其次...如果myreader为null,那么“HasRows”不能为false。 – 2010-03-23 14:45:09
*请参阅编辑的第一篇文章* – tom 2010-03-23 14:51:11