nathvi

  public static int NonqueryExecute(this SqlConnection sqlConnection, string sqlCommandText)
        {
            int returnValue = 0;
            try
            {
                SqlCommand cmd = sqlConnection.CreateCommand();
                SqlTransaction transaction = sqlConnection.BeginTransaction(Guid.NewGuid().ToString().Substring(0, 7));
                cmd.Connection = sqlConnection;
                cmd.Transaction = transaction;
                cmd.CommandText = sqlCommandText;

nathvi

public class TreeNode
{
    readonly List<TreeNode> ChildNodes = new List<TreeNode>();
    public string Id { get; }

    public TreeNode(IEnumerable<TreeNode> childNodes, string id)
    {
        Id = id;
        if(childNodes != null)
        {

nathvi

public class BinaryTreeNode
    {
        public BinaryTreeNode Left { get; set; }
        public BinaryTreeNode Right { get; set; }
        public string Id { get; }

        public BinaryTreeNode(string id, BinaryTreeNode left, BinaryTreeNode right)
        {
            Left = left;
            Right = right;