I follow the example in the WPF Control Examples application and Telerik website http://www.telerik.com/help/wpf/raddraganddrop-within-radgridview.html . I was able to make it work with the sample "MessageViewModel" as the RadGridView.ItemSource. However, when I change the RadGridView.ItemSource to DataView (data is retreiving from DB as DataTable), I got error "Cannot insert external objects to this list." at line:

((sender 

as RadGridView).ItemsSource as IList).Insert(index, draggedItem);

Does this feature work with DataView as ItemSource? How do I need to change to make it work?

Thanks

 

I saw this post: http://www.telerik.com/community/forums/wpf/tileview/tileview-item-header-background.aspx but it really seems overkill for such a simple property change. Is there a better(easier) way to just set the background bush for the header? For certain tiles that need to reflect a change I want to set the header background to a custom linear brush. I tried using a custom template but it only changed it for the text area and not the whole header item. I also tried the example attached in the other forum post but it didn't look correct, maybe cause we're using the metro theme?

Anyway, is there a solution I've overlooked?

Robert

Hi, I have got a GridView in Metro style. 
Why some column separator is disappeared? When I resize the window, some separators disappear and another appear.
Please see atache.
Thanks


// edited
RadGricView have got ColumnWidth="*"

I am currently using the solution outlined this post http://blogs.telerik.com/vladimirenchev/posts/10-05-31/how-to-synchronize-your-ui-selected-items-with-your-data-context-using-mvvm-and-blend-behaviors-for-silverlight-and-wpf.aspx 

to set my SelectedItem and SelectedItems from a RadGrid to a property on my viewModel (this works great by the way -thank you). What I am trying to do now is the same approach for a child grid of that same grid. I need to set SelectedDetailItem and SelectedDetailItems I believe the same approach will work but I cannot access my SelectedDetailItem  and SelectedDetailItems properties (which belong to my view model) from this child grid. I simply cannot get them to bind.

I have tried a few different things such as neither of which have worked.

SelectedItem="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type UserControl}}, Path=DataContext.
SelectedDetailItem}"

and

SelectedItem="{Binding SelectedDetailItem,ElementName=myViewName}"

 

Do you have any ideas on how to bind the SelectedItem from a child grid to a property on a view model?

Hi,

I'm looking at using the Docking control in my application, I have used the RadDock in a WinForms app and was wondering if this works in a similar way? 

What I want to have is a RibbonBar where different views/windows can be loaded into the the RadDocking. is it possible to load views/windows this way or how should this be done.

thanks 

David.

Hi, how to add Additional Button and HyperLink in RadWindow Header?
see atach

Hi All,

I am using MVVM approach, I came across http://www.telerik.com/help/wpf/scheduleview-features-loadondemand.html and understood that VisibleRangeChangedCommandProperty is provided by Telerik library itself.

I would like to know what all command behavior properties are provided by Telerik Library.

Regards,
Kshamesh

Hi,
    I am using RadDocking control in my prism application. I have created RadGroupPane addapter. Its working fine for a group pane if Its docked state, But if I change the state and try to add new view in my group pane then it throws an exception that index for region does not exist or out of index. "Insertion index was out of range. Must be non-negative and less than or equal to size.\r\nParameter name: index". is that a know issue, Can any one suggest me the solution for the problem please. The Adapter code is as follows:

public class DockManagerAdapter : RegionAdapterBase<RadPaneGroup>
{
protected override void Adapt(IRegion region, RadPaneGroup regionTarget)
        {
            region.ActiveViews.CollectionChanged += (s, e) =>
            {
                switch (e.Action)
                {
                    case NotifyCollectionChangedAction.Add:
                        foreach (var item in e.NewItems.OfType<RadPane>())
                        {
                            regionTarget.Items.Add(item);
                        }
                        break;
                    case NotifyCollectionChangedAction.Remove:
                        foreach (var item in e.OldItems.OfType<RadPane>())
                        {
                            item.RemoveFromParent();
                        }
                        break;
                    case NotifyCollectionChangedAction.Replace:
                        var oldItems = e.OldItems.OfType<RadPane>();
                        var newItems = e.NewItems.OfType<RadPane>();
                        var newItemsEnumerator = newItems.GetEnumerator();
                        foreach (var oldItem in oldItems)
                        {
                            var parent = oldItem.Parent as ItemsControl;
                            if (parent != null && parent.Items.Contains(oldItem))
                            {
                                parent.Items[parent.Items.IndexOf(oldItem)] = newItemsEnumerator.Current;
                                if (!newItemsEnumerator.MoveNext())
                                {
                                    break;
                                }
                            }
                            else
                            {
                                oldItem.RemoveFromParent();
                                regionTarget.Items.Add(newItemsEnumerator.Current);
                            }
                        }
                        break;
                    case NotifyCollectionChangedAction.Reset:
                        regionTarget
                            .EnumeratePanes()
                            .ToList()
                            .ForEach(p => p.RemoveFromParent());
                        break;
                }
            };


            foreach (var view in region.Views.OfType<RadPane>())
            {
                regionTarget.Items.Add(view);
            }
        }
protected override IRegion CreateRegion()
        {
            return new SingleActiveRegion();
        }
}

Regards,

Hi there,

I'm using your ObservableItemCollection<T> and I have two issues with it. (v. 2012.2.607.40)

First, there's no constructor that takes an IEnumerable<T> or List<T> like the System.Collections.ObjectModel version it eventually inherits from. Though not a requirement, this is very useful for initializing a collection before doing anything else to it.

Secondly (and most importantly) there doesn't appear to be support for adding null items. I get a NullReferenceException when calling:


The code is probably connecting to the item's PropertyChanged event, but a simple check for null during add/remove would allow support for null items.

I've extended the class to support the constructors, but I don't know overloading OnCollectionChanged or some other method will solve my issue. If so, please let me know what this method should contain.

On a slightly different topic, are the Suspend/Resume Notification methods called automatically on AddRange, InsertRange, and RemoveRange? Or do they need to be explicitly called?

Thanks!

Hi,

how can I achieve this look(attachment)?
-2 rows per record
-multiple columns(no groups)
Thanks!