I am getting presentation framework error

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1.44/5 (2 votes)

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Hi,

I am using Presentation framework for UI in wpf and am getting error in
PresentationFramework dll on window.showdialog() method and my window is not null also .Even when I have already put a breakpoint before this line while debugging ,it is not stopping at the breakpoint but giving this error on showdialog.The details of error are provided below.Kindly help.

Source : PresentationFramework

Stack Trace:
at System.Windows.Automation.Peers.DataGridItemAutomationPeer..ctor(Object item, DataGridAutomationPeer dataGridPeer)
at System.Windows.Automation.Peers.DataGridAutomationPeer.CreateItemAutomationPeer(Object item)
at System.Windows.Automation.Peers.ItemsControlAutomationPeer.GetChildrenCore()
at System.Windows.Automation.Peers.DataGridAutomationPeer.GetChildrenCore()
at System.Windows.Automation.Peers.AutomationPeer.EnsureChildren()
at System.Windows.Automation.Peers.AutomationPeer.GetChildren()
at System.Windows.Automation.Peers.AutomationPeer.isDescendantOf(AutomationPeer parent)
at System.Windows.Automation.Peers.AutomationPeer.isDescendantOf(AutomationPeer parent)
at System.Windows.Automation.Peers.AutomationPeer.isDescendantOf(AutomationPeer parent)
at System.Windows.Automation.Peers.AutomationPeer.isDescendantOf(AutomationPeer parent)
at System.Windows.Automation.Peers.AutomationPeer.ValidateConnected(AutomationPeer connectedPeer)
at MS.Internal.Automation.ElementProxy.StaticWrap(AutomationPeer peer, AutomationPeer referencePeer)
at System.Windows.Automation.Peers.AutomationPeer.ProviderFromPeer(AutomationPeer peer)

Posted 18-Dec-14 17:37pm

User-8870171

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Comments

Sergey Alexandrovich Kryukov 19-Dec-14 1:10am

Just think at this: what's the use of showing exception stack without showing the code throwing the exception?
—SA

User-8870171 19-Dec-14 1:26am

I have a class which is implementing InotifyPropertyChanged
in that I have a property where I am setting the following:

ModernHome home = new ModernHome();
home.ShowDialog();

The second line gives error after running for sometime when I click on the links in the left pane of the ModernUI dll from FirstFloor .Error is :
System.ArgumentNullException was unhandled
HResult=-2147467261
Message=Value cannot be null.
Parameter name: item
Source=PresentationFramework
ParamName=item

User-8870171 22-Dec-14 4:38am

Anyway,I got the solution guys.

Ujwaliyer31 15-Jun-16 13:12pm

pls update ur solution.. i am getting the same problem

Member 10759752 10-Sep-15 10:20am

What was the solution? I am having the very same problem.

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