public override string ToString()
{
StringBuilder sb = new StringBuilder("deleteTable_result(");
sb.Append("io: ");
sb.Append(this.io== null ? "<null>" : this.io.ToString());
sb.Append(",nf: ");
sb.Append(this.nf== null ? "<null>" : this.nf.ToString());
sb.Append(")");
return sb.ToString();
}