Strange Problem Making Popup Stay Visible

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   I have a control which behaves similar to the drop-down button on a ComboBox.  When you click the button, I want a CommandBar Popup menu to appear below the control.  Making the popup appear is pretty simple, but I'm having trouble getting it to behave the way I want.
With the button on a ComboBox, the drop-down list appears on the MouseDown event.  If I use the MouseDown event to display a popup below the control, the popup will disappear when the user raises the mouse button (as if the user had clicked an area outside the popup).  As best I can tell, the only way to avoid this is to use the MouseUp event.  The problem with using MouseUp is that the user must fully click on the drop-down button (not just mouse down) in order for the popup menu to appear, and this is not consistent with other windows controls like the ComboBox.
Any ideas how I can display a CommandBar Popup menu from a MouseDown event and not have the popup close when the user releases the mouse button?  It's almost as if I need to direct the CommandBar popup NOT to respond to any mouse up/down information when the mouse is positioned over the drop-down button, but I don't have any idea how to handle this.

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Boyd Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 08 December 2003 Location: United States Status: Offline Points: 285	Post Options Post Reply Quote Boyd Report Post Thanks(0) Quote Reply Topic: Strange Problem Making Popup Stay Visible Posted: 15 June 2004 at 2:26pm
	I have a control which behaves similar to the drop-down button on a ComboBox. When you click the button, I want a CommandBar Popup menu to appear below the control. Making the popup appear is pretty simple, but I'm having trouble getting it to behave the way I want. With the button on a ComboBox, the drop-down list appears on the MouseDown event. If I use the MouseDown event to display a popup below the control, the popup will disappear when the user raises the mouse button (as if the user had clicked an area outside the popup). As best I can tell, the only way to avoid this is to use the MouseUp event. The problem with using MouseUp is that the user must fully click on the drop-down button (not just mouse down) in order for the popup menu to appear, and this is not consistent with other windows controls like the ComboBox. Any ideas how I can display a CommandBar Popup menu from a MouseDown event and not have the popup close when the user releases the mouse button? It's almost as if I need to direct the CommandBar popup NOT to respond to any mouse up/down information when the mouse is positioned over the drop-down button, but I don't have any idea how to handle this.

SuperMario Members Profile Send Private Message Find Members Posts Add to Buddy List Admin Group Joined: 14 February 2004 Status: Offline Points: 18057	Post Options Post Reply Quote SuperMario Report Post Thanks(0) Quote Reply Posted: 19 October 2004 at 11:42am
	It sounds like the CloseSubMenuOnClick property is what you are looking for. Then you could use the ClosePopups method to close the menu. Is this what you are looking for?

Boyd Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 08 December 2003 Location: United States Status: Offline Points: 285	Post Options Post Reply Quote Boyd Report Post Thanks(0) Quote Reply Posted: 19 October 2004 at 11:52am
	Nope... that wasn't it. 'CloseSubMenuOnClick' only prevents the menu from closing when you click on a menu item. In this case, I'm trying to prevent the popup from closing when the user clicks a designated area outside of the popup (in this case, the drop-down portion of a combobox). In the last release (9.50), a fix was implemented so that the popup menu ignores the first MouseUp command (which was causing most of my problems). That was a sufficient work-around for now. I still can't mimic a drop-down the way I would like, but it's close enough.