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Exception when editing in grouped mode, asynchronous

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GridView
This is a migrated thread and some comments may be shown as answers.
Josh
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Josh asked on 08 Jun 2010, 07:13 PM
This problem occurs when beginning edit mode on a cell while the radgridview is grouped by at least one column , and its DataLoadMode is set to Asynchronous.  It does not occur in Synchronous mode, which is our current workaround.  But the performance drop is noticeable in Synchronous mode...
<UserControl x:Class="SpectrumSL.SilverlightControl1" 
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"   
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"   
    xmlns:telerik="clr-namespace:Telerik.Windows.Controls;assembly=Telerik.Windows.Controls.GridView">  
 
    <Grid> 
        <telerik:RadGridView ItemsSource="{Binding Collection}"  ShowGroupPanel="True" DataLoadMode="Asynchronous"/>  
    </Grid> 
 
</UserControl> 
 
Partial Public Class SilverlightControl1  
    Inherits UserControl  
 
    Private _collection As New ObservableCollection(Of tableitem)  
    Public Property Collection() As ObservableCollection(Of tableitem)  
        Get 
            Return _collection  
        End Get 
        Set(ByVal value As ObservableCollection(Of tableitem))  
            _collection = value  
        End Set 
    End Property 
 
 
    Private Sub SilverlightControl1_Loaded(ByVal sender As ObjectByVal e As System.Windows.RoutedEventArgs) Handles Me.Loaded  
        Me.DataContext = Me 
        For index = 1 To 3  
            Dim item As New tableitem  
            item.Key = index  
            item.Value = "group1" 
            Collection.Add(item)  
        Next 
    End Sub 
 
    Public Class tableitem  
        Private _key As Integer 
        Public Property Key() As Integer 
            Get 
                Return _key  
            End Get 
            Set(ByVal value As Integer)  
                _key = value  
            End Set 
        End Property 
 
        Private _value As String 
        Public Property Value() As String 
            Get 
                Return _value  
            End Get 
            Set(ByVal value As String)  
                _value = value  
            End Set 
        End Property 
    End Class 
End Class 
 


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Milan
Telerik team
answered on 10 Jun 2010, 03:37 PM
Hello Josh,

I wan unable to reproduce this issue. Are you able to reproduce this with our latest internal build?


All the best,
Milan
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Josh
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answered on 10 Jun 2010, 05:01 PM
Thanks for your response,
I made a new project, with latest build  2010.1.603.1040, and reproduced the error.  It happened when hitting enter after editing, or clicking another cell, while in grouped mode, and Asynchronous DataLoadMode.  I took a screenshot and I can reproduce this error every time on multiple PCs.
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Milan
Telerik team
answered on 15 Jun 2010, 02:01 PM

Hello Josh,

We have managed to reproduce the problem and we are currently working on a fix which will be a part of our latest Internal Build this Friday.

Thank you for your cooperation.

I have updated your Telerik points.



All the best,
Milan
the Telerik team

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