Question

I am developing a web application and in the code-behind, I need to get the ID column from specific table in the database and convert it to int. The query is:

string quizID = SELECT MIN(column_name) FROM table_name

and I want to put the value of it in

int quizid

which means I need to conversion, so how to do that?

Answer 1

You’re going to want to do something like this:

using (SqlConnection conn=new SqlConnection(sql_string)) {

    conn.Open();

    SqlCommand command=new SqlCommand(
        sql_query,
        conn
    );

    Int32 quizid=((Int32?)command.ExecuteScalar()) ?? 0;

}