C#

using (IDbCommand clientCommand = Connection.CreateCommand())
{
    clientCommand.CommandText = clientSql;
    using (IDataReader clientReader = clientCommand.ExecuteReader()
    {
        while(clientReader.Read())
        {
            AddDataToList(clientReader);
        }

        if(List.Count >= 100)
        {
            using (var com = warehouseConnection.CreateCommand())
            {
                com.CommandText = GetInsertScript(List);
                AddedCount += com.ExecuteNonQuery();
            }
        }
    }
}

public IEnumerator<object[]> GetTableContent()
{
    SqlCommand command = new SqlCommand("command", SqlConnection);
    using (var reader = command.ExecuteReader())
    {
        var items = new object[reader.FieldCount];
        reader.GetValues(items);
        yield return items;
    }
}

public void GetTableContent(Action<object[]> dataAction)
{
    SqlCommand command = new SqlCommand("command", SqlConnection);
    using (var reader = command.ExecuteReader())
    {
        var items = new object[reader.FieldCount];
        reader.GetValues(items);
        dataAction.Invoke(items);
    }
}

var maxRev = 2;
var jobSequenceSheets = (from jss in dc.JobSequenceSheets
                            where jss.JobId == jobId &&
                                jss.RevisionNumber == maxRev
                            select jss).OrderBy(x => x.Plan)
                                       .ThenBy(x => x.Elevation)
                                       .DistinctBy(c => new { c.Plan, c.Elevation})
                                       .ToList();

Hello everyone, I want it to read the contents of the txt file I selected from the list box and then draw a picture in the picturebox according to the values it gets from the txt file. can you please help?