This feature already exists in the control, but it works only when the control is loaded for the first time. Also, only one node can be expanded. You can achieve this by setting InitialPath
property of the control to a file or folder that is deep in the tree. For example if you have this folders structure:
- Folder 1
- Folder 1.1
- Folder 1.1.1
- Folder 1.2
- Folder 2
and you set the InitialPath to be "/ApplicationRootDir/RootFolder/Folder 1/Folder 1.1/Folder 1.1.1"
, then the TreeView will be opened with the Folder 1.1.1
As I mentioned, however, in my first reply to this post, the implementation of the RadFileExplorer control does not allow the TreeView's structure (inside the FileExplorer) to be fully expanded when the control is first loaded.
I hope this information helps.
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