public async Task <ActionResult> BrowseHierarchyTree(string enteredPath)
{
ViewData["Home"] = HttpContext.Request.Url.Scheme + "://" + HttpContext.Request.Url.Authority;
IEnumerable <TreeNode> childrenOfNode = new List <TreeNode>();
try
{
// checking for default url
if (string.IsNullOrEmpty(enteredPath))
{
ViewBag.RootPath = this.hierarchyService.GetRootNode();
return(View("Index"));
}
// check if the path is not valid
var filteredPathes = hierarchyService.GetFilteredNodesNames(enteredPath);
if (!filteredPathes.Any())
{
ViewBag.Message = errorLogService.GetWrongPatternErrorMessage(enteredPath);
return(View("CustomError"));
}
// check if current node exists
var searchedNode = await hierarchyService.GetNodeByCombinedPath(filteredPathes.ToList());
if (hierarchyService.IsFoundNodeEmpty(searchedNode))
{
ViewBag.Message = errorLogService.GetWrongPathErrorMesage(enteredPath);
return(View("CustomError"));
}
// check and returns all child nodes for current node
childrenOfNode = await hierarchyService.GetChildrenNodes(searchedNode);
}
catch (Exception ex)
{
ViewBag.Message = errorLogService.GetExceptionMessage(ex);
return(View("CustomError"));
}
List <LinkToChild> linksToChildren = hierarchyService.GetLinksToChildren(HttpContext.Request.Path, childrenOfNode.Select(node => node.Name)).ToList();
// data for links on cshtml side
ViewData["CurrentDirectory"] = enteredPath;
ViewData["LinksToChildren"] = linksToChildren;
return(View());
}