When the FileManager has data in the following structure Folder > SubFolder, File1, File2... and a Grid view with enabled paging, an error is thrown when you attempt to double click on "Folder".

Bug report

If you try to specify an icon through the ContextMenu items in the FileManager, no icon is rendered.

Regression introduced with 2023.1.117

Workaround: https://dojo.telerik.com/oFuGacAT/14

Reproduction of the problem

1. Open this Dojo example - https://dojo.telerik.com/oFuGacAT/12
2. Right-click on an item in the FileManager to open the ContextMenu

Current behavior

No icons are shown in the ContextMenu

Expected/desired behavior

The specified icons should be visible

Environment

• Kendo UI version: 2023.2.606
• Browser: [all]

Bug report

When you select multiple files in the FileManager and then toggle the preview pane, the default multipleFilesTemplate is broken

Regression introduced with 2023.1.117

Workaround - https://dojo.telerik.com/eFaRIWav/4

Reproduction of the problem

1. Open this Dojo example - https://dojo.telerik.com/eFaRIWav
2. Select two or more files
3. Toggle the Preview Pane

Current behavior

The current content of the PreviewPane is "span class="k-file-name">2 items

Expected/desired behavior

The content of the PreviewPane should be "2 items"

Environment

• Kendo UI version: 2023.2.606
• Browser: [all]

For the future it would be nice if a separate "move" endpoint was optionally available since many of us tend to use virtual filesystem layouts instead of real filsystems.

That said, I used the advice here to setup my own custom handling for file moves:

FileManager - Detect move vs copy in UI for ASP.NET MVC | Telerik Forums

If I preventDefault, I can only do 1-2 moves before I am then unable to navigate the folders anymore through either column. If I allow it to propogate and fire off the create and destroy request (my serverside functions ignore these as invalid), the navigation continues to work.

Can you suggest what events I can maybe fire manually to trigger success without making the create and destroy request, or suggest another way to fix this issue?

My move handler:

function onexecute(e) {
        if (e.command == "MoveCommand") {

            var d = {
                'items' : e.options.items,
                'targetfolder' : e.options.target
            };

            $.post('/Data/Gallery_move?aid=@Model.Asset.ID', d)/*, function(data){
            });*/
            
            //e.preventDefault();
        }
    }

There is no padding between semicolon and the data "Type:Folder" wouldn't be better "Type: folder" with a space in between?

This one is a bit complex:

1. Run sample at https://dojo.telerik.com/@GaloisGirl/IPAMIHik
2. Enter folder "Documents"
3. Delete "ExcelDocument.xslx" - the operation should fail and the file will come back.
4. Delete "Text.txt" - no request is sent, the file does not come back

Any "delete" operation can be replaced by a "rename" operation, and the result is the same.

The problem does not happen at root level. I don't know if it's because it's the root levels, or because the elements are directories.

Bug report

When an item is selected in the left panel and setDataSource is used in FileManager, the left panel becomes empty. The behavior does not occur if the setDataSource method is used without previously selecting an item.

Reproduction of the problem

1. Open the Dojo.
2. Select the 'Documents' folder
3. Click on the 'Reset data' button.

Current behavior

The left panel in FileManager becomes empty.

Expected/desired behavior

The newly set folders should be displayed even if an item is selected before setting the new dataSource.

Environment

• Kendo UI version: 2022.3.1109
• Browser: [all ]

Moving files MORE than one level upwards in a folder hierarchy is bugged.

If you have a nested folder hierarchy like this:

folder1

          folder2

                   folder3

1. moving a file from folder1 to folder2 works.

2. moving a file from folder2 to folder1 works.

3. moving a file from folder1 to folder3 works.

4. moving a file from folder3 to folder1 is BUGGED.

I have the issue in my code, but I also tested it in your demo site and it has the same problem.

https://demos.telerik.com/kendo-ui/filemanager/index

I have uploaded a screen dump of the error output from Chrome.

It is in or after the DataBinding event (Comming from Create action), the the error occurs, thus causing the Delete action and refresh of the UI to never occur.

The bug occurs in both Chrome and IE Edge.

Please fix the bug.

I am running into inconsistencies when using the toolbar Search input of a File Manager object after navigating to new folders.  

Simple dojo for reference - https://dojo.telerik.com/aPOtiXex/2

Steps to reproduce

1. Click on "Folder1" in the treeview.
2. In the Toolbar Search, enter the text "Sub 1001".  This will correctly filter the displayed items.
3. Click on "Sub 1001" in the treeview.  Notice that the search filter is still in place, but that it is not applied to the current folder view.
4. In the Toolbar Search, remove the text 1 character at a time.  Notice that as you remove characters in the Search input, the filter IS applied to the current folder view.  Continue removing characters until the Search input is empty.
5. Click on "Folder1" in the treeview.  Notice that the contents of the folder are STILL filtered as if the Search filter was "Sub 1001", even though Search input is currently empty.
6. In the Toolbar Search, add 1 space character, then remove it.  Notice that this finally clears the filter applied to the folcer in step #2.

I am not sure what the best answer for this scenario would be.  Maybe navigating to a new folder should clear the search filter criteria in the toolbar and clear any applied filter criteria to the previous folder?  Or maybe the toolbar search input should be reset to accurately reflect the current applied filter for the folder on navigate?  Something good for your dev team to discuss, but it is clear that the current implementation will create some confusion for users.

Bug report

Paging in FileManager's List view does not work as expected. Paging in Grid View behaves as expected.

Reproduction of the problem

1. Open this Dojo example - https://dojo.telerik.com/@martin.tabakov@progress.com/Aqoxecud/6
2. Open the Images folder

Current behavior

Only one page is displayed in the pager

Expected/desired behavior

The pager should be updated to show the correct number of pages.

Environment

• Kendo UI version: 2022.1.119
• Browser: [all]

Bug report

In FileManager read request is triggered twice when navigating to a parent folder that has a nested folder. The issue does not occur if the folder contains only files without a nested folder.

Reproduction of the problem

1. The issue can be replicated if a nested folder is created in the demo service. The screencast here demonstrates the issue.

Current behavior

Two identical requests are sent when the parent folder is selected.

Expected/desired behavior

There should be a single request when navigating to a parent folder, even if it has a nested child folder.

Environment

• Kendo UI version: 2022.1.119
• Browser: [all ]

Bug report

When a node in the TreeView of a Kendo UI FileManager is selected, then the parent node is collapsed, and re-expanded, the selection is removed.

Reproduction of the problem

1. Go to the following Progress Kendo UI Dojo.
2. Expand the Root node
3. Select Folder Inner 1
4. Collapse Root
5. Re-expand Root

Current behavior

The selected node within a parent after collapsing and expanding will lose its selection. Here is a screencast of the above in action.

Expected/desired behavior

The selection should persist even upon expanding/collapsing parent nodes.

Environment

• Kendo UI version: 2021.2.616

Bug report

Calling the loaded method on a FileEntry instance does not reset the loaded flag.

function onNavigate(e) {
            var filemanager = e.sender;
            var path = e.path;
            var entry = filemanager.dataSource.get(path);
            if (entry.loaded()) {
                entry.loaded(false);
            }
        }

Reproduction of the problem

1. Run this dojo
2. On the TreeView section of the Filemanager navigate to both folders, so the contents of the folders are loaded
3. Navigate between the Folders using the TreeView and note the loaded flag is not reset

Current behavior

Calling entry.loaded(false); does not reset the loaded flag of a FileEntry instance.

Expected/desired behavior

Calling entry.loaded(false); should reset the loaded flag of a FileEntry instance.

Environment

• Kendo UI version: 2021.1.330
• Browser: [all]

Bug report

In mobile devices, when a nested folder is renamed in the FileManager, the parent folder is displayed in the dialog for renaming.

Reproduction of the problem

1. Open our Demos and choose a mobile device in the emulator
2. Create a nested folder and try to rename it.

Current behavior

The parent folder name is displayed in the dialog for renaming. The parent folder is renamed after saving (screencast)

Expected/desired behavior

It should be possible to rename nested folders on mobile devices.

Environment

• Kendo UI version: 2021.1.224
• Browser: [ all ]

Feature Request

The tooltip for the ListView button (ListView) in the FileManager is misleading. Consider renaming it to "thumbnails" or less confusing text. Currently, it leads to the impression that the items would be represented as normal list instead of as items in the ListView widget.

Expected/desired behavior

Less confusing text should be used for tooltip for the ListView button.

Bug report

When the views.grid option of the FileManager is used and the filterable option is enabled, the filter menu is empty. Also the 'Date Created' column is empy.

Reproduction of the problem

1. Open the Dojo example
2. Go to the 'Grid View'

Current behavior

Currenlty, the filter menu of the Grid in the 'Grid View' is empty. The 'Date Created' column does not show the dates.

Expected/desired behavior

The filter menu in the 'Grid View' and the 'Date Created' column of the FileManager should be not be empty.

Workaround

As a temporary workaround, the fields of the model could be defined with lowercase. Here is a Dojo example where the workaround is applied.

Environment

• Kendo UI version: 2020.3.1118
• Browser: [all ]

Run sample at https://dojo.telerik.com/@GaloisGirl/OJUPoYOY and check JavaScript log.

• Actual result: the second call to "read" has empty data, and a second copy of the folder "folder" is shown in the tree.
  
• Expected result: the second call to "read" should have a path passed.