Questions on UI for WPF Forum

4 answers

263 views

Does RadDiagram GraphSource property support multiple parents for single node ?

Hi all !

I'm having a closer look to the new RadDiagram component (and Q2 Roadmap) and I was wondering if the GraphSource property was (or will be) supporting nodes with multiple parents or should this achieved manually ?
I've attached a sample diagram to give a better view of what I would like to achieve.
Many thanks for your help !
TheFlo

Diagram

answered on 27 Mar 2012

1 answer

145 views

Drag & Drop Effects

Hello,

I'm evaluating the TreeView of "RadControls for WPF Q3 2011 SP1" on Windows 7.
I'm using the version 2011.3.1220.40 of Telerik.Windows.Controls.Navigation.

I want to use the drag and drop capabilities of the TreeView.
But it seems that the property Effects of the DragDropEventArgs object is always null.

public TelerikTreeview()

{

InitializeComponent();

RadDragAndDropManager.AddDropQueryHandler(m_cellTreeView, new EventHandler<DragDropQueryEventArgs>(OnDropQuery));

}

private void OnDropQuery(object sender, DragDropQueryEventArgs e)

{

System.Diagnostics.Debug.WriteLine(e.Options.Effects);

}

How do you perform a copy or move operation with your drag & drop ?

Best regards.

TreeView

answered on 27 Mar 2012

3 answers

100 views

Attaching Appointments to ResourceType

I have an ObservableCollection that currently only has one ResourceType in it: Provider. I have 3 Providers in that ResourceType. I have a collection of Appointments that I have attached to the AppointmentSource. When I did not have any ResourceType attached the appointments would appear in the scheduler just fine. I have added the ResourceType and they are displaying correctly, but the appointments are not showing. My collection of appointments is correctly populating still. I have tried attaching the specific Provider I need to the Appointment's Resource, but I still cannot get them to show. I am lost and would love any help that could be given.

ScheduleView

answered on 27 Mar 2012

1 answer

178 views

Error in InvertedBooleanConverter

I noticed in my application that InvertedBooleanConverter (in the ScheduleView dll) was not working correctly for the convert back operation. I looked at it in JustDecompile and it is incorrect.

The InvertedBooleanConverter in Telerik.Windows.Controls.dll is correct.

Why are there multiple versions?

General Discussions

answered on 27 Mar 2012

2 answers

505 views

Changing Zoom from Code

I am using the ChartView control, and would like to be able to change the Zoom from code.
I have tried two things.

1. Set Zoom property directly from code.
i.e. Chart.Zoom = new Size(1,1);

2. Bind to a Zoom property on my view model, and set that property.

i.e. XAML gets

<telerik:RadCartesianChart Name="Chart" Zoom="{Binding Path=Zoom, Mode=TwoWay}">

And code gets
ViewModel.Zoom = new Size(1,1);

Either way, the view is not refreshed correctly. However, on a re-size operation, it becomes OK again.

Is this a known problem, or is there something else I need to do?

Thanks
Craig Littlewood

ChartView

answered on 27 Mar 2012

3 answers

107 views

GridViewCheckBoxColumn always initially unchecked - what am I doing wrong?

Hi telerik,

I have the following rather simple use of the GridViewCheckBoxColumn -- and the grid shows up with no checkmarks what-so-ever.

Can you see what I'm doing wrong?

I can see (by breakpoint) that the row data model is queried for relevant value (so binding should be correct) and that the value in all cases is True (so the underlying value is as I expect).

Any clues?

Thanks,

Anders, Denmark

Grid



        <Controls:RadGridView x:Name="grid" 

                              AutoGenerateColumns="False" 

                              ItemsSource="{Binding Items}" 

                              Height="329" 

                              ScrollViewer.HorizontalScrollBarVisibility="Auto" 

                              ScrollViewer.VerticalScrollBarVisibility="Auto"

                              ShowGroupPanel="False" 

                              VerticalAlignment="Top" 

                              IsFilteringAllowed="False" 

                              >

            <Controls:RadGridView.Columns>

                <Controls:GridViewCheckBoxColumn DataMemberBinding="{Binding IsChecked}" IsThreeState="False" Initialized="GridViewCheckBoxColumn_Initialized" />

            </Controls:RadGridView.Columns>

        </Controls:RadGridView>

"Items"

ObservableCollection<ICheckableViewModel> Items { get; set; }

Row data item



    public class CheckableStringViewModel : ICheckableViewModel

    {

        public CheckableStringViewModel(bool isChecked, string displayName, string identity, bool isReadOnly)

        {

            IsChecked = isChecked;

            DisplayName = displayName;

            Identity = identity;

            IsReadOnly = isReadOnly;

        }



        public bool IsReadOnly { get; private set; }

        public string DisplayName { get; private set; }

        public string Identity { get; private set; }

        private bool _isChecked;

        public bool IsChecked

        {

            get { return _isChecked; }

            set { _isChecked = value; }

        }

    }

GridView

answered on 27 Mar 2012

1 answer

63 views

Change Mouse Key for Zoom selection

The "ChartPanAndZoomBehaviour" facility allows an area to be selected using the LeftMouseButton. Is it possible to change this to the RightMouseButton? If not, is it possible to add a custom facility?

Regards
Craig

ChartView

answered on 27 Mar 2012

2 answers

129 views

Group expands automatically

Hello everyone,

I am using Version 2011.3.1116.40 of GridView for WPF, if the Gridview is grouped I am saving the open groups in a list.
Everytime the user expands or collapses a group I add or remove the IGroup Element in the list.
After a refresh of the DatasourceProvider I expand all the groups which are in my list, but then if I scroll down the list the group with the first element in the list (datasource) is also expanded (GroupRowIsExpandedChanged event fires). It seems that after an refresh the currentscellinfo points to the first element and then if i scroll over the collapsed group where this element is included the group expands.
Do you have any ideas?

regards
Thomas

GridView

answered on 27 Mar 2012

1 answer

78 views

Persist form separatly

Hi,

I have a project with 3 forms, Form A/B/C. Form A call the showdialog of Form B and Form B call the showdialog of Form C.
Each form have a persistence Id. On the close of each form, I persist the form. Actually, when I close Form C, Form C/B/A are persisted at the same time!!! How I can persist a form only when it's needed???

Thank's

PersistenceFramework

answered on 27 Mar 2012

5 answers

283 views

bug in radmenuitem command binding at raisecanexecutechanged

Hi.
I'm using radmenu like this:

<telerik:RadMenu Grid.Column="0" VerticalAlignment="Center" IsTabStop="False" Orientation="Vertical">

<telerik:RadMenu.Items>

<telerik:RadMenuItem Header="Modyfikuj" Command="{Binding Path=StartEditPartCommand}"/>

<telerik:RadMenuItem Header="Zatwierdź" Command="{Binding Path=CommitEditPartCommand}"/>

<telerik:RadMenuItem Header="Anuluj" Command="{Binding Path=RejectEditPartCommand}"/>

</telerik:RadMenu.Items>

</telerik:RadMenu>

so basically, i'm binding menu items to some commands which have canexecute method:

StartEditPartCommand = new DelegateCommand(

/*foo*/,

() => !IsEditingPart && SelectedItem != null);

somewhere in code, raisecanexecutechanged method is properly raised:
StartEditPartCommand.RaiseCanExecuteChanged();

and... it doesn't refresh menuitems' IsEnabled property - they remain in previous state. Sliding mouse cursor over menuitem causes menuitems refresh, but not always.

When having changed radmenu to itemscontrols/stackpanels with buttons everything works fine, so it's probably bug with radmenu or radmenuitem?

Menu

answered on 27 Mar 2012