ShellTreeViewBeforeShowContextMenu Event

This event is called before the ShellContextMenu is displayed. You may use it to cancel the context menu appearing or to modify the custom menu entries in the ContextMenuStrip.

Namespace: Jam.Shell
Assembly: ShellBrowser (in ShellBrowser.dll) Version: 7.1

Syntax

C++

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public event EventHandler<ShellTreeSelectionCancelEventArgs> BeforeShowContextMenu

Public Event BeforeShowContextMenu As EventHandler(Of ShellTreeSelectionCancelEventArgs)

public:
 event EventHandler<ShellTreeSelectionCancelEventArgs^>^ BeforeShowContextMenu {
	void add (EventHandler<ShellTreeSelectionCancelEventArgs^>^ value);
	void remove (EventHandler<ShellTreeSelectionCancelEventArgs^>^ value);
}

member BeforeShowContextMenu : IEvent<EventHandler<ShellTreeSelectionCancelEventArgs>,
    ShellTreeSelectionCancelEventArgs>

Value

Type: SystemEventHandlerShellTreeSelectionCancelEventArgs

Remarks

When modifying the context menu, you may set the following properties of single items: Checked, Enabled, Visible.

Examples

The following example refers to a ShellList.

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//The following example hides the first menu item from the custom context menu that is assigned to the "ContextMenuStrip" property
// of the ShellListView, if the context menu is assigned to more than one item.
// Supported properties of the items are: Checked, Visible, Enabled.
private void ShellListView1_BeforeShowContextMenu(object sender, ListSelectionCancelEventArgs e)
{
    ((ToolStripMenuItem)contextMenuStrip1.Items[0]).Visible = e.Selection.Count == 1;
}

Reference

ShellTreeView Class

Jam.Shell Namespace

ShellTreeViewAddLanguageSpecificTextSet("LST29233A18_0?cpp=::|nu=.");BeforeShowContextMenu Event

Value

Reference

ShellTreeViewBeforeShowContextMenu Event