How to format the data returned from a Search operation
I am trying to get the Search facility to work correctly. I can return a list of matching files and
folders to the FileManager control, but I am unable to ‘Open’ folders. It appears that the tree structure gets
invalidated and so cannot open the folder.
This list is returned from the Microsoft Graph API. DriveItem is a Microsoft object (https://docs.microsoft.com/en-us/graph/api/resources/driveitem?view=graph-rest-1.0)
What values are required in the returned FileManagerDirectoryContent
objects (especially the FilterPath and Path values) and how are those values
used by the FileManager control when submitting the request to Open the folder? I think maybe the root folder id or path (in
the cwd variable) and the id or path for the selected folder may not be
correct.
Here is the code I have for the ‘Search’.
public override FileManagerResponse Search(string path, string searchString, bool showHiddenItems, bool caseSensitive, params FileManagerDirectoryContent[] data)
{
FileManagerResponse searchResponse = new FileManagerResponse();
try
{
DriveItem driveItem = sp.GetDriveItem(data[0].Id);
FileManagerDirectoryContent cwd = new FileManagerDirectoryContent();
cwd.Id = driveItem.Id;
cwd.Name = driveItem.Name;
cwd.IsFile = driveItem.Folder
== null ? true : false;
cwd.Size = driveItem.Size != null ? long.Parse(driveItem.Size.ToString()) : 0;
cwd.DateCreated =
driveItem.CreatedDateTime.HasValue ? driveItem.CreatedDateTime.Value.DateTime :
DateTime.MaxValue;
cwd.DateModified =
driveItem.LastModifiedDateTime.HasValue ?
driveItem.LastModifiedDateTime.Value.DateTime : DateTime.MaxValue;
cwd.Type = driveItem.Folder == null ? new FileInfo(driveItem.Name).Extension : "folder";
cwd.Action =
sp.CreateLink(driveItem.Id).Link.WebUrl;
cwd.Path =
driveItem.ParentReference.Path;
cwd.FilterPath =
driveItem.ParentReference.Path;
cwd.HasChild =
DirectoryHasChildren(driveItem.Id);
searchResponse.CWD = cwd;
IEnumerable<DriveItem>
searchList = sp.Search(driveItem.Id, searchString);
List<FileManagerDirectoryContent> returnList = searchList.Where(x
=> x.Name.Contains(searchString,
StringComparison.CurrentCultureIgnoreCase)).Select(x => new FileManagerDirectoryContent()
{
Id = x.Id,
Name = x.Name,
Size = x.Size != null ? long.Parse(x.Size.ToString()) : 0,
DateCreated =
x.CreatedDateTime.HasValue ? x.CreatedDateTime.Value.DateTime :
DateTime.MaxValue,
DateModified =
x.LastModifiedDateTime.HasValue ? x.LastModifiedDateTime.Value.DateTime :
DateTime.MaxValue,
Type = x.Folder == null ? new FileInfo(x.Name).Extension : "folder",
HasChild =
DirectoryHasChildren(x.Id),
IsFile = x.Folder == null ? true : false,
FilterPath =
BuildFilterPathName(x),
Action = x.Folder == null ? null : sp.CreateLink(x.Id).Link.WebUrl
}).ToList();
searchResponse.Files =
returnList;
return searchResponse;
}
catch (Exception e)
{
return GraphExceptionHandler.FormatMessage(e);
}
}
private string BuildFilterPathName(DriveItem item)
{
string value = GetFilterPathName(item);
pathValues = new List<string>();
return value;
}
private string GetFilterPathName(DriveItem item)
{
if (item.ParentReference != null)
{
DriveItem x =
sp.GetDriveItem(item.ParentReference.Id);
if (x.Name != "root")
{
pathValues.Add(x.Name);
GetFilterPathName(x);
}
}
return (string.Join(@"\",
pathValues.ToArray().Reverse()) + @"\");
}
View after the ‘Search’ has returned.
View as the ‘Open’ is processing (attempting to open the
second ‘Fees’ folder in the list). Notice
that the tree has changed!
The folder in question is not a sub folder of the root but at
a lower level in the tree
