Questions on UI for WPF Forum

1 answer

217 views

Hi there,

I am busy evaluating Telerik's WPF controls and came to a bit of a road bump I hope you can help.

I am trying to Drag and Drop from a ListBox (this will eventually be a RadPanelBar) to a re-hosted Workflow 4.0 Designer (It's a WPF control as well).

I have got this working with the normal WPF drag and drop implementation for example.

                    Type type = ((AvailableActivity)(((ListBox)sender).SelectedItem)).Type;         
            DataObject data = new DataObject(DragDropHelper.WorkflowItemTypeNameFormat, type.AssemblyQualifiedName);         
            DragDrop.DoDragDrop(this.box1, data, DragDropEffects.Move);         

The WF Designer then queries the DataObject when its being dragged over and handles it from there.

My question is, is there anyway to provide the DataObject to the WF Designer as it expects it using the Telerik Drag and Drop? I have followed your drag and drop tutorials and got it working between list boxes, from RadPanelBar to ListBox etc. This is what I currently have.

                    private void OnDragQuery(object sender, DragDropQueryEventArgs e)         
            {         
            if (e.Options.Status == DragStatus.DragQuery)         
            {         
            AvailableActivity activity = ((AvailableActivity)((System.Windows.Controls.ListBox)(e.Options.Source)).SelectedItems[0]); // get the activity from the list         
                                        
            DataObject data = new DataObject(DragDropHelper.WorkflowItemTypeNameFormat, activity.Type.AssemblyQualifiedName);         
                                        
            e.Options.DragCue = activity.Type.AssemblyQualifiedName;          
            e.Options.ArrowCue = RadDragAndDropManager.GenerateArrowCue();          
            e.Options.Payload = activity.Type.AssemblyQualifiedName;            
            }         
            e.QueryResult = true;         
            e.Handled = true;          
            }         

Thanks

Greg

DragAndDrop

answered on 25 Jan 2010

7 answers

116 views

[Solved] Force header to stay expanded

What I would like to do is to force a specific RadPanelBarItem to stay expanded and, ideally, get rid of the arrow too (specifically, I want to do this for the first item and leave the rest to act normally). I have tried handling various events and setting templates to try to intercept the collapse functionality but have been so far unable to figure it out. I am also unable to figure out how to remove the arrow. Any ideas?

PanelBar

answered on 25 Jan 2010

2 answers

195 views

[Solved] Selected Item

Hello!

RadCarousel is a great component and it makes the application that I'm working on look so profesional even if I don't have a designer backgound or so.
There are a couple of addition things that I would need from this component, they may be already there but I don't know how to take advantage of them.
First of all - I need to always have one selected CarouselItem out there, no matter if I've clicked one or not.
If I press an additional "Load" button I should always have the possibility to retrieve the top most carousel item there
( right now carousel.SelectedItem can return null if there was no click on a specific item )
Second - Reffering the beginning or the end of carousel items sequence - I should have the possibility to stop the flow of the items (if I continuously press the carousel's ScrollViewer buttons) I mean that the last item should be in the middle of the screen and not somewhere far in the left/right of the screen (check out the attachments) - and this last one should be the SelectedItem also

Carousel

answered on 25 Jan 2010

1 answer

152 views

Side by side install

Hello everybody,

is it possible to install different version of WPF controls (indeed, all the compenent develop by Telerik: ASP.NET, AJAX, Windows Form ... ) on the same machine? What the conseguence in file system and Visual Studio (2008 and 2010 versions)?

Thank you.

Attilio Gelosa.

General Discussions

answered on 25 Jan 2010

1 answer

229 views

Possibility to play video in WPF Carousel

Hi
Is it possible to play videos (wmv, FLV, mov, etc) in the WPF carousel?

BR

Gabriel

Carousel

answered on 25 Jan 2010

1 answer

231 views

separate context menu for grid headers

Hi,

I need separate context menu for the grid rows and the grid headers.

I defined the rows context menu in the xaml like this:

<telerikGrid:RadGridView x:Name="ordersGrid" AutoGenerateColumns="False" DataLoadMode="Synchronous" >

<Navigation:RadContextMenu.ContextMenu>

<Navigation:RadContextMenu Opened="RadContextMenu_Opened" ItemClick="RadContextMenu_ItemClick">

<Navigation:RadContextMenu.Items>

<Navigation:RadMenuItem Header="Update Order" />

<Navigation:RadMenuItem Header="Cancel Order" />

<Navigation:RadMenuItem Header="View Details" />

</Navigation:RadContextMenu.Items>

</Navigation:RadContextMenu>

</Navigation:RadContextMenu.ContextMenu>

and i defined in the code the context menu for the headers.

The problem is that the main context menu overrides the header context menu. I even try to remove it in the loaded event but it didn't help:

void ordersGrid_Loaded(object sender, RoutedEventArgs e)

{

GridViewHeaderRow headerRow = ordersGrid.ChildrenOfType<GridViewHeaderRow>().FirstOrDefault();

IEnumerable<GridViewHeaderCell> cells = headerRow.Cells.OfType<GridViewHeaderCell>();

/**remove the default menu from the header in order to ser a separate menu for header**/

foreach (GridViewHeaderCell cell in cells)

{

var x = cell.ContextMenu;

RadContextMenu.SetContextMenu(cell, null);

}

GridViewHeaderMenu gvhm = new GridViewHeaderMenu(ordersGrid);

gvhm.InitializeMenus();

}

How can i achieve it?

Thanks,

Ofer

GridView

answered on 22 Jan 2010

1 answer

93 views

dates before SelectableDateStart="xxx" view is almost like hidden

hi

I am using a datepicker control and when i set "SelectableDateStart" property to some date, the dates before that displayed as hidden mode. We can view the dates very lightly but the display is somewhat like blank.

<telerik:RadDatePicker Height="25" Margin="64,98,51,0" Name="radDatePicker1" SelectableDateStart="1/19/2010" VerticalAlignment="Top" Width="163" />

thank you

DatePicker

answered on 22 Jan 2010

3 answers

169 views

How can I catch invalid entries as ValidationError?

Hello,

I have the following problem: I have a form with a RadDatePicker in it. Everything works fine, but when I enter an invalid date into the entry field of the picker, the date is just resetted or the entry field of the picker is empty. I would prefer to see the defined ErrorTemplate instead.
I tried to catch this by adding ValidatesOnError to the Binding in the XAML file but it doesnt work.

So: How can I catch it if the user enters an invalid value to the entry field?

Best Regards,
Jerma

TimePicker

answered on 22 Jan 2010

1 answer

103 views

Is this a bug: Chinese in RadTimePicker does not show 12 hour format?

We notice that if we change the culture to be chinese,
RadTimePicker's select time box always show the Militory time (24 hour format). See the attachment.
Does this consider as a bug?
thx!
Jane

TimePicker