Home Forums WinForms controls Other WinForms controls Xceed SmartUI Menu in .NET :: Help me as soon as Possible

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    #18495 |

    I am having a purchased version of Xceed SmarUI Menu. I am facing an issue regarding it. Below is the complete error detail i got while working with it.

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     * InvalidOperationException thrown in Xceed.SmartUI

    An attempt was made to dropdown a SmartItem while another SmartItem is in the process of being dropped.

     ————————————————————————————————————————————————————————————

    System.InvalidOperationException: An attempt was made to dropdown a SmartItem while another SmartItem is in the process of being dropped.

       at Xceed.SmartUI.SmartItemCollection.set_DroppedDownItem(SmartItem value)

       at Xceed.SmartUI.SmartItem.OpenDropDown()

       at Xceed.SmartUI.Controls.MenuBar.MainMenuItem.MakeVisible()

       at Xceed.SmartUI.SmartItem.EnsureVisible()

       at Xceed.SmartUI.SmartControl.set_SelectedItem(SmartItem value)

       at Xceed.SmartUI.SmartItem.set_Selected(Boolean value)

       at Xceed.SmartUI.Controls.MenuBar.MenuItem.OnMouseEnter(EventArgs e)

       at Xceed.SmartUI.SmartItem.InvokeMouseEnter()

       at Xceed.SmartUI.SmartControl.InvokeMouseOverSmartItemChanged(SmartItem previousMouseOverSmartItem, SmartItem newMouseOverSmartItem)

       at Xceed.SmartUI.SmartControl.SetMouseOverSmartItem(SmartItem item)

       at Xceed.SmartUI.SmartControl.SetMouseOverSmartItem(SmartItem item)

       at Xceed.SmartUI.SmartControl.OnMouseMove(MouseEventArgs e)

       at Xceed.SmartUI.SmartControl.DoMouseMove(MouseEventArgs e)

       at Xceed.SmartUI.SmartControl.DoMouseMove()

       at Xceed.SmartUI.SmartItemCollection.set_OffsetScrollBars(Point value)

       at Xceed.SmartUI.SmartItemCollection.set_FirstVisibleItem(SmartItem value)

       at Xceed.SmartUI.SmartItemCollection.set_SmartDesignMode(Boolean value)

       at Xceed.SmartUI.SmartControl.SetSmartDesignMode(Boolean smartDesignMode)

       at Xceed.SmartUI.Forms.DropDownForm..ctor(Form owner, SmartItem parentItem)

       at Xceed.SmartUI.Controls.MenuBar.TopMenuForm..ctor(Form owner, SmartItem parentItem)

       at Xceed.SmartUI.Controls.ToolBar.TopMenuToolForm..ctor(Form owner, SmartItem parentItem)

       — End of inner exception stack trace —

       at System.RuntimeMethodHandle._InvokeConstructor(Object[] args, SignatureStruct& signature, IntPtr declaringType)

       at System.RuntimeMethodHandle.InvokeConstructor(Object[] args, SignatureStruct signature, RuntimeTypeHandle declaringType)

       at System.Reflection.RuntimeConstructorInfo.Invoke(BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)

       at System.RuntimeType.CreateInstanceImpl(BindingFlags bindingAttr, Binder binder, Object[] args, CultureInfo culture, Object[] activationAttributes)

       at System.Activator.CreateInstance(Type type, BindingFlags bindingAttr, Binder binder, Object[] args, CultureInfo culture, Object[] activationAttributes)

       at Xceed.SmartUI.SmartControl.OpenDropDown(SmartItem item)

       at Xceed.SmartUI.SmartItemCollection.set_DroppedDownItem(SmartItem value)

       at Xceed.SmartUI.SmartControl.OnMouseDown(MouseEventArgs e)

       at System.Windows.Forms.Control.WmMouseDown(Message& m, MouseButtons button, Int32 clicks)

       at System.Windows.Forms.Control.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) 

    Imported from legacy forums. Posted by WebDon (had 2483 views)

    User (Old forums)
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    Post count: 23064

    What are you doing exactly?  Can you provide a code snippet showing what you are doing when the exception is thrown?

    Imported from legacy forums. Posted by André (had 3385 views)

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