Context Menu

• Aug 01, 2019

The ASPxFileManager context menu is a popup menu displayed when an end-user right-clicks a file manager element. To enable the context menu, use the FileManagerSettingsContextMenu.Enabled property.

The FileManagerSettingsContextMenu.Items property allows populating the collection of menu items with default and custom items. If the item collection is empty, default items are displayed.

When a file manager updates its context menu, the ASPxClientFileManager.ToolbarUpdating event is raised, allowing you to change item availability. You can determine the currently active area using the event argument’s ASPxClientFileManagerToolbarUpdatingEventArgs.activeAreaName property. To access a particular context menu item, use the ASPxClientFileManager.GetContextMenuItemByCommandName method.

Example

The complete sample is available in the DevExpress online demo File Manager - Custom Toolbar

JS

function OnToolbarUpdating(s, e) {
     var enabled = (e.activeAreaName == "Folders" || FileManager.GetSelectedItems().length > 0) && e.activeAreaName != "None";
     FileManager.GetContextMenuItemByCommandName ("Properties").SetEnabled(enabled);
}

ASPX

<dx:ASPxFileManager ID="FileManager" ClientInstanceName="FileManager" runat="server">
     <ClientSideEvents ToolbarUpdating="OnToolbarUpdating" />
     <SettingsContextMenu Enabled="true">
          <Items>
               <dx:FileManagerToolbarCustomButton Text="Properties" CommandName="Properties" BeginGroup="true">
                    <Image IconID="setup_properties_16x16" />
               </dx:FileManagerToolbarCustomButton>
...