Using Result of SQL Coded Step as a Data Bind Variable

I've performed a lot of searching/reading, and cannot find a solution to my problem.  First off, I'm far from a coding expert.  I currently have a custom coded step to connect to SQL Server, run a Query (select/join/etc.), and print the result to the log.  This works:

SqlConnection thisConnection = <connection string)>
thisConnection.Open();
Log.WriteLine(thisConnection.Database);
SqlCommand thisCommand = thisConnection.CreateCommand();
thisCommand.CommandText = <SQL query>
SqlDataReader thisReader = thisCommand.ExecuteReader();
while (thisReader.Read())
{
       Log.WriteLine("BarcodeId: " + (String) thisReader["BarcodeId"]);
}
thisReader.Close();
thisConnection.Close();

The result from above writes my expected result to the log.  Now, I want to use this result to data bind a test input box further down in the script.  I've tried playing with set/getextracted values, etc.  I know how to do this if extracting an HTML TextContent into a DataBindVariable, but unsure how to do the same with a result from SQL query (coded database step).  Thanks in advance.