[Solved] RowDetailTemplate not getting expanded through CS code

[mohan choudhary]

My RowDetailsTemplate contains a RadGridView, when ever a row is added by my viewModel into the _CalendarDateList RadGridView
the RowDetailsTemplate should be in expanded mode showing the newly added row in RadGridView

 <telerikData:RadGridView.RowDetailsTemplate>
                <DataTemplate>
                    <StackPanel Background="#ffe8e7e3">
                       <Border Margin="33, 0, 0, 0" BorderBrush="Transparent" BorderThickness="0">
                            <telerikData:RadGridView Name="_CalendarDateList" ShowGroupPanel="False"
                                telerikGridViewFilter:GridViewFilterRow.IsEnabled="True" BorderThickness="2" BorderBrush="#A6A6A6"
                                 ItemsSource="{Binding CalendarDateData}"  SelectionMode="Single" VerticalAlignment="Stretch" HorizontalAlignment="Stretch" AutoGenerateColumns="False"
                                 CanUserResizeColumns="False" CanUserFreezeColumns="False" RowIndicatorVisibility="Collapsed" Background="White">

for that I have implemented the following code -

 private void calendarViewModel_AddIndividualCalendarCalendarDateCompleted(object sender, EventArgs e)
        {
            _CalendarViewModel.AddIndividualCalendarCalendarDateCompleted -= new EventHandler<EventArgs>(calendarViewModel_AddIndividualCalendarCalendarDateCompleted);

            CalendarModel calModel = sender as CalendarModel;
            if (calModel != null)
            {
                GridViewRow row = _CalendarList.ItemContainerGenerator.ContainerFromItem(calModel) as GridViewRow;
                if (row != null) row.DetailsVisibility = Visibility.Visible;
            }
        }

But It is not getting expanded, am I missing something in the RowDetailsTemplate in XAML or somewhere else?  I have debugged my entire code and it sets the DetailsVisibility to Visible but still it is not getting expanded.

I also tried with another alternate solution, i.e. by retrieving the row through following looping -

 private void calendarViewModel_AddIndividualCalendarCalendarDateCompleted(object sender, EventArgs e)
        {
            _CalendarViewModel.AddIndividualCalendarCalendarDateCompleted -= new EventHandler<EventArgs>(calendarViewModel_AddIndividualCalendarCalendarDateCompleted);

            CalendarModel calModel = sender as CalendarModel;
            if (calModel != null)
            {

                IList<GridViewRow> gridViewRows = this._CalendarList.ChildrenOfType<GridViewRow>();

                foreach (GridViewRow gvr in gridViewRows)
                {
                    CalendarModel calendarModelTemp = gvr.DataContext as CalendarModel;

                    if (calendarModelTemp != null
                        && calModel != null
                        && calendarModelTemp.BusinessCalendarData.Id == calModel.BusinessCalendarData.Id)
                    {
                        gvr.DetailsVisibility = Visibility.Visible;
                        break;
                    }
                }
            }
        }

Still the RowDetailsTemplate is not getting expanded.

[Rossen Hristov]

Hi mohan choudhary,

We have tried to reproduce what you have described but it is working on our end.

Can you send us a runnable sample project with dummy data that demonstrates this behavior and we will debug it. Also, tell us the exact steps we need to undertake in order to reproduce the issue you are faced with.

Kind regards,
Ross
the Telerik team

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