RadComboBox SelectedIndexChanged-Ereignis nicht auslösen, wenn mit in-Place-Bearbeitung in einer RadGrid

Ich bin mit inplace-editing auf ein RadGrid gebaut ist, dass mit einer class-Datei. Alles funktioniert gut, außer ich habe ein Problem das SelectedIndexChanged-Ereignis nicht auslösen, wenn das raster im edit-Modus. Irgendwelche Gedanken?

private void RadGrid_ItemCreated(object sender, GridItemEventArgs e)
{
    if (e.Item is GridEditableItem && e.Item.IsInEditMode)
    {
        try
        {
            if ((e.Item as GridDataItem) == null) { return; }
            ((RadNumericTextBox) (e.Item as GridDataItem)["Percentage"].Controls[0]).Width = Unit.Pixel(75);
            ((TextBox) (e.Item as GridDataItem)["Code"].Controls[0]).Width = Unit.Pixel(75);

            RadComboBox _participantList = (e.Item as GridEditableItem)["ID"].Controls[0] as RadComboBox;
            if (null == _participantList) { return; }

            _participantList.Width = Unit.Pixel(120);
            _participantList.DataValueField = "ID";
            _participantList.DataTextField = "ID";
            _participantList.AutoPostBack = true;
            _participantList.DataSource = MAASBaseInterface.ParticipantAPI.GetParticipants();
            _participantList.DataBind();
            _participantList.SelectedIndexChanged += new RadComboBoxSelectedIndexChangedEventHandler(_participantList_SelectedIndexChanged);

            if (!(e.Item.DataItem is GridInsertionObject))
                _participantList.SelectedValue = ((Participant) (e.Item.DataItem)).ID.ToString();
            if (e.Item.DataItem is GridInsertionObject)
                _participantList.EmptyMessage = "-- Select --";
        }
        catch (Exception ex)
        {

            string _ex = ex.Message;
        }
    }
} 

void _participantList_SelectedIndexChanged(object sender, RadComboBoxSelectedIndexChangedEventArgs e)
{
    //first reference the edited grid item through the NamingContainer attribute
    GridEditableItem editedItem = (sender as RadComboBox).NamingContainer as GridEditableItem;
    int _selectedValue = Convert.ToInt32((editedItem["ID"].Controls[0] as RadComboBox).SelectedValue);
    ParticipantList _participants = MAASBaseInterface.ParticipantAPI.GetParticipants();
    Participant _participant = _participants.Where(a => a.ID == _selectedValue) as Participant;
    RadTextBox _code = editedItem["Code"].Controls[0] as RadTextBox;
    _code.ReadOnly = false;
    _code.Text = _participant.Code;
}

InformationsquelleAutor Tim | 2011-12-21

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