Home/ Questions/Q 8295329
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-06-08T14:32:58+00:00

string sql = Select UserId From User where UserName=’Gheorghe’; SqlCommand cmd=new SqlCommand(sql, connection); cmd.ExecuteScalar();

  • 0
string sql = "Select UserId From User where UserName='Gheorghe'";


SqlCommand cmd=new SqlCommand(sql, connection);
cmd.ExecuteScalar(); //this statement return 0

but I want to get the id of user?
how can I get it?

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    You need the SqlDataReader.

    SqlDataReader Provides a way of reading a forward-only stream of rows from a SQL Server database.

    Sample

    string sql = "Select UserId From User where UserName='Gheorghe'";

SqlCommand cmd=new SqlCommand(sql, connection);
SqlDataReader rd = cmd.ExecuteReader(); 
if (rd.HasRows) {
  rd.Read(); // read first row
  var userId = rd.GetInt32(0);
}

    More Information

    • 0