How to insert value using cassandra in asp.net c#

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C#

.NET

C#4.0

.NET4

i facing problem to inserting record in Column Family..

using (var ctx = new CassandraContext(host, port, keySpace))
            {
                try
                {
                    var employeeRecord = new CassandraEntity<List<Column>>()
                    .SetColumnFamily(columnFamily)
                    .SetKey(Convert.ToInt32(txtId.Text))
                    .SetData(empRecord);

                    ctx.ColumnList.InsertOnSubmit(employeeRecord);
                    ctx.SubmitChanges();
                }
}

How to solve problem to insert reocrd in database.......