Problem adding menuitem to context menu attached to NotifyIcon

[Claire]

Sorry Ive added this twice (sortof) but if I'd added an addendum to the
first one then this would probably have been ignored.

This problem affects a ContextMenu attached to a NotifyIcon object. I don't
get the problem with context menus attached to list boxes etc.
Ive also seen a noticeable slow down in speed when the menu attempts to hide
after the problem occurs.

When I build a dynamic submenu on the first time round, it shows a nice list
of items.
When it gets run through on a 2nd pass, an indicator shows presence of a sub
menu but the menu never pops up.

Is this a recognized bug?

Claire

[JACK FENG]

paste your code

[Claire]

Hi Jack,

The way Ive managed to solve the problem is by disposing of the parent menu
item then recreating it before adding the subitems.
Old code
========

/// Adds a submenu item for each available serial port showing current
status
private void TestComports()
{
MenuItem item;
string str;
int idx = 0;
// Clear old sub menu
mnuOpenPort.Men uItems.Clear();

// Show items in the list box
for (int nCount = 0; nCount < Comports.Count; nCount++)
{
Sax.Communicati ons.SerialOptio ns Options = new
Sax.Communicati ons.SerialOptio ns(SerConn.Opti ons);
Options.PortNam e = Comports[nCount];
// Set the options
SerConn.SetOpti ons(Options);
if ((m_Communicati onManager.Seria lConnected)
&& (m_Communicatio nManager.Serial PortName == Comports[nCount]))
{
// add menu item saying this is the connected port
str = string.Format(" {0} (Open)", (string)Comport s[nCount]);
lstPorts.Items. Add(str);

//Create new menu item
item = new MenuItem(str);
item.Checked = true;
item.Click += new EventHandler(cm dConnect_Click) ;
//Add item to the submenu
mnuOpenPort.Men uItems.Add(item );
}
else
{
str = "";
// Test ports will open. If they open OK then close them again
try
{
SerConn.Open();
str = string.Format(" {0} (Closed)", (string)Comport s[nCount]);
}
catch(System.IO .IOException)
{
str = string.Format(" {0} (Not available)", (string)Comport s[nCount]);
}
finally
{
try
{
if (SerConn.IsOpen )SerConn.Close( );
}
catch
{
}
}
// Add new item to submenu
lstPorts.Items. Add(str);
item = new MenuItem(str);
item.Click += new EventHandler(cm dConnect_Click) ;
mnuOpenPort.Men uItems.Add(item );
}
}
}

[Mick Doherty]

Remove the menuitem from the context menu.
Add child Menu items to it.
Re add the menuitem to the contextmenu.

This usually happens on controls where the contextmenu has been called by
the contextMenu.Sho w() method, but it looks like it also happens on
NotifyIcon.

--
Mick Doherty
http://dotnetrix.co.uk/nothing.html
"Claire" <[e-mail] > wrote in message
news:38******** *****@individua l.net...

Sorry Ive added this twice (sortof) but if I'd added an addendum to the
first one then this would probably have been ignored.

This problem affects a ContextMenu attached to a NotifyIcon object. I
don't get the problem with context menus attached to list boxes etc.
Ive also seen a noticeable slow down in speed when the menu attempts to
hide after the problem occurs.

When I build a dynamic submenu on the first time round, it shows a nice
list of items.
When it gets run through on a 2nd pass, an indicator shows presence of a
sub menu but the menu never pops up.

Is this a recognized bug?

Claire

[Claire]

thanks Mick