The Image Manager is classified as a FielBrowser dialog, which is implemented with the RadFileExplorer control
How to customize the built-in dialogs is explained in this online demo
. To customize the FileExplorer control you need to get the FileBrowser.ascx file and further configure the RadFileExplorer control.
To reconfigure the visible elements of the File Explorer, you can use the VisibleControls
property and set the ones that need to be shown.
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