Im following a C# database connection tutorial however the code they provide for the connection class has a problem, it has an error on dat\_set which I'm assuming needs to be set as a variable but I'm unsure. Having looked at the code the tutorial provides many times what i have is exactly the same

The errors are these lines

```
da_1.Fill(dat_set, "Table_Data_1");
return dat_set;

```

Here is what i have

```
using System.Data.Sql;
using System.Data.SqlClient;
using System.Data;

namespace JBT
{
    class DBConnect
    {
        private string sqlString;
        private string strCon;
        System.Data.SqlClient.SqlDataAdapter da_1;

        public string Sql
        {
            set { sqlString = value; }
        }

        public string connection_string
        {
            set { strCon = value; }
        }

        public System.Data.DataSet GetConnection
        {
            get
            { return MyDataSet(); }
        }

        private System.Data.DataSet MyDataSet()
        {
            System.Data.SqlClient.SqlConnection con = new System.Data.SqlClient.SqlConnection(strCon);

            con.Open();

            da_1 = new System.Data.SqlClient.SqlDataAdapter(sqlString, con);
            da_1.Fill(dat_set, "Table_Data_1");
            con.Close();

            return dat_set;
        }

    }
}

```