Hi Mike,

I am also getting the same problem in Ultratoolbar Manager when I am trying to Merge two toolbars. I replicated the problem in a sample app. Can you please let me know how can I send the app to you or concerned person? Here is the Stack Trace

System.ArgumentException: Key not found
Parameter name: key
   at Infragistics.Shared.KeyedSubObjectsCollectionBase.GetItem(String key)
   at Infragistics.Win.UltraWinToolbars.ToolsCollectionBase.get_Item(String key)
   at Infragistics.Win.UltraWinToolbars.ToolBase.InternalSetUnderlyingTool(ToolBase underlyingMdiChildTool)
   at Infragistics.Win.UltraWinToolbars.ToolsCollectionBase.MergeMdiChildTools(ToolsCollection childToolsCollection)
   at Infragistics.Win.UltraWinToolbars.RibbonGroup.MergeMdiChildGroup(RibbonGroup childGroup)
   at Infragistics.Win.UltraWinToolbars.RibbonTab.MergeMdiChildTab(RibbonTab childTab)
   at Infragistics.Win.UltraWinToolbars.Ribbon.MergeMdiChildTabs(Ribbon childRibbon)
   at Infragistics.Win.UltraWinToolbars.Ribbon.MergeMdiChild(Ribbon childRibbon)
   at Infragistics.Win.UltraWinToolbars.UltraToolbarsManager.MergeMdiChild(UltraToolbarsManager childToolbarsManager)
   at Infragistics.Win.UltraWinToolbars.UltraToolbarsManager.InternalSetActiveMdiChildManager(UltraToolbarsManager newActiveMdiChildManager, Boolean calledFromMdiChildActivate, Boolean remergeIfUnchanged)
   at Infragistics.Win.UltraWinToolbars.UltraToolbarsManager.OnFormMdiChildActivated(Object sender, EventArgs e)
   at System.EventHandler.Invoke(Object sender, EventArgs e)
   at System.Windows.Forms.Form.OnMdiChildActivate(EventArgs e)
   at System.Windows.Forms.Form.ActivateMdiChildInternal(Form form)
   at System.Windows.Forms.Form.WmMdiActivate(Message& m)
   at System.Windows.Forms.Form.WndProc(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
   at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

sir,

are u sure the problem only in miss match column or what?

and can we modify dictionary?because my dictionary is set to be Readonly mode.

sory if my question is so confusing since i'm a beginner in c#.

tks in advance,

regards

Can this type of issue be published in a KB article?

Found it.  Someone had a .LoadFromXML, that got an "encrypted XML string" from the database that over wrote any settings you did in the designer.  I commented that line out and things "not go boom".  Thanks for pointing me in the right direction.  I am going to close that support ticket also.

Did you try searching for the .Load method of UltraToolbarsManager? You could be saving and loading the toolbars to binary, in which case your text search would not have found it.