public static ODTO_Tree <TEntity> ToTree <TEntity, TKey>(this List <TEntity> sourceDataList, TKey pathTag = default) where TEntity : class, IDBField_Tree <TKey>
{
ODTO_Tree <TEntity> tree = new ODTO_Tree <TEntity>();
var query = sourceDataList.AsQueryable();
if (pathTag == null)
{
query = query.Where(o => o.ParentNode == null);
}
else
{
query = query.Where(o => o.ParentNode != null && o.ParentNode.ToString() == pathTag.ToString());
}
List <TEntity> dataList = query.ToList();
foreach (TEntity data in dataList)
{
ODTO_TreeNode <TEntity> treeNode = new ODTO_TreeNode <TEntity>();
treeNode.Info = data;
treeNode.Childs = sourceDataList.ToTree(data.CurNode);
tree.Add(treeNode);
}
return(tree);
}
public ODTO_TreeNode()
{
Info = default(T);
Childs = new ODTO_Tree <T>();
}