Using Dapper to select data from MS SQL - asp.net

Question

I use Dapper to select data form Mssql, It result display "null"
(use stored procedure、 List to get data, and "myDictionary[0].Account" and myDictionary[0].Password to get detail information) ,
but MS SQL database have data.
How can I fix code ? thanks.
public void Do_Click(object sender, EventArgs e)
{
string strAccount = Request.Form["userAccount"];
string strPassword = Request.Form["userPwd"];
using (var conn = new SqlConnection(strConn))
{
try
{
conn.Open();
List<LoginModel> myDictionary =
conn.Query<LoginModel>(#"uspSelectLoginChk",
new { LoginAcc = strAccount, LoginPsd = strPassword }, commandType: CommandType.StoredProcedure).ToList();
string strAccountChk = myDictionary[0].Account;
string strPASChk = myDictionary[0].Password;
conn.Close();
if (strAccountChk != null && strAccountChk != null)
{
Response.Redirect("test.aspx");
}
else
{
}
}
catch (Exception ex)
{
response.write( ex.ToString());
}
}
}

Answer 1

Try this one,
// Modified your code
public void Do_Click(object sender, EventArgs e)
{
string strAccount = Request.Form["userAccount"];
string strPassword = Request.Form["userPwd"];
var _para = new DynamicParameters();
_para.Add("#LoginAcc", strAccount);
_para.Add("#LoginPsd", strPassword);
var _list = _con.Query<LoginModel>("uspSelectLoginChk", _para, commandType: CommandType.StoredProcedure); // _con is SqlConnection _con = new SqlConnection("your connection string")
if(_list != null) {
Response.Redirect("test.aspx");
}
}

Answer 2

you need to check:
execute sp in sql with parameter which can view in debug the code.
example:
exec uspSelectLoginChk 'LoginAccValue', 'LoginPsdValue'
if a any data in sql execute,your code is error,if no data, you can insert data before with a data debug result.
Thanks