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Error when editing cell child

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TreeListView

This is a migrated thread and some comments may be shown as answers.

Mark asked on 10 Feb 2011, 12:31 PM

Pic.jpg

Hi

I have problem in using RadTreeListview

When editing the parent cell, there is no problem on editing cell. However, editing child cell commits error. See attached picture file.
Can anyone help me on this please?

Here is My XAML Code

----------------------------------------

-----------------------------------

Here is my code

Imports System.Collections.ObjectModel
Imports System.ComponentModel
Imports System.Collections.Specialized

Partial Public Class MainPage
    Inherits UserControl
    Dim _Proposal As New ObservableCollection(Of clsProposal)
    Public Sub New()
        InitializeComponent()
        Dim clsProposal As New clsProposal

        clsProposal = New clsProposal
        clsProposal.Code = 1
        clsProposal.Name = "Breakfast"
        _Proposal.Add(clsProposal)

Dim cItem As New clsItems

        cItem = New clsItems
        cItem.Code = 1
        cItem.Name = "Bacon"
        _Proposal(0).items.Add(cItem)

        cItem = New clsItems
        cItem.Code = 1
        cItem.Name = "Egg"
        _Proposal(0).items.Add(cItem)

rtvCostView.ItemsSource = _Proposal
End Sub

End Class

Public Class clsProposal
Implements INotifyPropertyChanged

    Private _CodeProposal As Integer
    Private _Name As String
    Private _items As ObservableCollection(Of clsItems)

Public Event PropertyChanged As PropertyChangedEventHandler _
Implements INotifyPropertyChanged.PropertyChanged

Public Sub NotifyPropertyChanged(ByVal propertyName As String)
RaiseEvent PropertyChanged(Me, New PropertyChangedEventArgs(propertyName))

End Sub

Public Sub New()

        _CodeProposal = 0
        _Name = ""
        _items = New ObservableCollection(Of clsItems)
    End Sub

    Public Property Code As Integer
        Get
            Return _CodeProposal
        End Get
        Set(ByVal value As Integer)
            _CodeProposal = value
        End Set
    End Property
    Public Property Name As String

        Get
            Return _Name
        End Get
        Set(ByVal value As String)
            _Name = value
        End Set
    End Property

    Public Property items As ObservableCollection(Of clsItems)
        Get
            Return _items
        End Get
        Set(ByVal value As ObservableCollection(Of clsItems))
            _items = value
            NotifyPropertyChanged("items")
        End Set
    End Property

End Class

Public Class clsItems
Implements INotifyPropertyChanged

Private _CodeItem As Integer
Private _ItemName As String

Public Event PropertyChanged As PropertyChangedEventHandler _
Implements INotifyPropertyChanged.PropertyChanged

    Public Sub NotifyPropertyChanged(ByVal propertyName As String)
        RaiseEvent PropertyChanged(Me, New PropertyChangedEventArgs(propertyName))
    End Sub
    Public DataSourceChanged As EventHandler

    Public Sub New()
        _CodeItem = 0
        _ItemName = ""
    End Sub

    Public Property Code As Integer
        Get
            Return _CodeItem
        End Get
        Set(ByVal value As Integer)
            _CodeItem = value
        End Set
    End Property
    Public Property Name As String
        Get
            Return _ItemName
        End Get
        Set(ByVal value As String)
            _ItemName = value
        End Set
    End Property

End Class

-----------------

4 Answers, 1 is accepted

answered on 11 Feb 2011, 10:54 AM

Hi

My version of telerik is 2010.3.1110.1040

Here is the error details

User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; WOW64; Trident/4.0; GTB6.6; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; .NET4.0C; .NET4.0E)
Timestamp: Fri, 11 Feb 2011 09:50:39 UTC

Message: Unhandled Error in Silverlight Application
Code: 4004
Category: ManagedRuntimeError
Message: System.Reflection.TargetException: Object does not match target type.
   at System.Reflection.RuntimeMethodInfo.CheckConsistency(Object target)
   at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture, Boolean skipVisibilityChecks)
   at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
   at System.Reflection.MethodBase.Invoke(Object obj, Object[] parameters)
   at Telerik.SilverlightExtensions.ReflectPropertyDescriptor.GetValue(Object component)

Line: 56
Char: 13
Code: 0

I hope we could solve this problem

Many Thanks
Mark

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Error when editing cell child

4 Answers, 1 is accepted