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Preventing users from deleting folders in the File Browser dialogs

HOW-TO

Prevent users from deleting folders in the File Browser dialogs

DESCRIPTION

Sometimes it is needed to allow users to delete files but prevent them from deleting folders in the File Browser dialogs. The solution below demonstrates how to implement this functionality.

SOLUTION

Here are the steps on how to disable the folder deletion in the File Browser dialogs of RadEditor:
1) register the external dialog files of RadEditor so that you can modify the FileBrowser.ascx file, e.g.

<telerik:RadEditor runat="server" ExternalDialogsPath="~/EditorDialogs" ID="RadEditor1">
    <ImageManager ViewPaths="~/Images" UploadPaths="~/Images" DeletePaths="~/Images" />
</telerik:RadEditor>

2) Open the \EditorDialogs\FileBrowser.ascx file, locate the <RadFileExplorer> control and attach the OnClientDelete function to the *OnClientDelete *event property, e.g.

<telerik:RadFileExplorer ID="RadFileExplorer1" OnClientDelete="OnClientDelete" Height="450px" Width="400px" TreePaneWidth="150px"
runat="Server" EnableOpenFile="false" AllowPaging="true" />
<script type="text/javascript">
function OnClientDelete(oExplorer, args)
{
 var item = args.get_item();

 if (item.isDirectory())
 {
  args.set_cancel(true);
  alert("You cannot delete directories");
 }
}
</script>
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