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1 answer
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I am populating a RadTabControl in the code-behind, and it's bound to a property called SelectedBottomTab.

Here's the XAML
<telerik:RadTabControl x:Name="tabBottomTabPanel"
                        Grid.Row="2"
                        ItemsSource="{Binding BottomTabs}" 
                        SelectedItem="{Binding SelectedBottomTab}">
</telerik:RadTabControl>

then in the code behin I create the tabs:

private ObservableCollection<RadTabItem> _BottomTabs;
public ObservableCollection<RadTabItem> BottomTabs
{
    get { return _BottomTabs; }
    set
    {
        if (_BottomTabs != value)
        {
            _BottomTabs = value;
            RaisePropertyChanged("BottomTabs");
        }
    }
}
  
private RadTabItem _SelectedBottomTab = null;
public RadTabItem SelectedBottomTab
{
    get { return _SelectedBottomTab; }
    set
    {
        if (_SelectedBottomTab != value)
        {
            _SelectedBottomTab = value;
            RaisePropertyChanged("SelectedBottomTab");
        }
  
    }
}

and
private void setupBottomTabs()
{
    RadTabItem tabA = new RadTabItem { Header = "Tab A" };
    RadTabItem tabB = new RadTabItem { Header = "Tab B" };
    RadTabItem tabC = new RadTabItem { Header = "Tab C" };
  
    BottomTabs = new ObservableCollection<RadTabItem>();
    BottomTabs.Add(tabA);
    BottomTabs.Add(tabB);
    BottomTabs.Add(tabC);
}

When change tabs the SelectedBottomTab property set it not firing.



Petar Mladenov
Telerik team
 answered on 02 Feb 2012
4 answers
289 views
Using the following class to manage data conversion between a scheduleview and listbox:

using Telerik.Windows.Controls.ScheduleView;
using Telerik.Windows.DragDrop.Behaviors;
 
namespace DragDrop
{
    public class AppointmentConverter : DataConverter
    {
        /// <summary>
        /// Returns a list of all formats that the data in this data object can be converted to.
        /// </summary>
        public override string[] GetConvertToFormats()
        {
            string assemblyName = typeof(Appointment).AssemblyQualifiedName;
            return new string[] { assemblyName };
        }
 
        /// <summary>
        /// Retrieves a data object in a specified format; the data format is specified by a string.
        /// </summary>
        public override object ConvertTo(object data, string format)
        {
            if (DataObjectHelper.GetDataPresent(data, typeof(ScheduleViewDragDropPayload), false))
            {
                ScheduleViewDragDropPayload payload = (ScheduleViewDragDropPayload)DataObjectHelper.GetData(data, typeof(ScheduleViewDragDropPayload), false);
 
                if (payload != null)
                {
                    return payload.DraggedAppointments;
                }
            }
            return null;
        }
    }
}

I cannot drag a CustomAppointment (as coded in the Telerik Demo)
back to a list box from a schedule view. No exception or error,
it just simply doesn't let me (cursor icon changes to a 'not
permitted' icon).
Daniel
Top achievements
Rank 1
 answered on 02 Feb 2012
2 answers
113 views

I want the menus of my RADMenu to appear instantly. 

No scrolling or fading in - the menus should just pop up instantly when I click on a RadMenuItem.

What is the most simple way to do this?

Peter
Top achievements
Rank 1
 answered on 02 Feb 2012
1 answer
424 views

In the following piece of code I'm loading some RTF text into a telerik RadRichTextBox. Does anyone know how to set the text control to wrap the text to the box width? Take into account that the sample code is part of a DataTemplate in the resources section of a window, therefore variable _reportRTFBox is not available in window code behind

<Grid>
<Grid.RowDefinitions>
    <RowDefinition/>
    <RowDefinition />
</Grid.RowDefinitions>
<telerikProvider:RtfDataProvider
    Grid.Row="1"
    Rtf="{Binding ReportToDistributeRTF}"
    RichTextBox="{Binding ElementName=_reportRTFBox}" />
<telerik:RadRichTextBox
    Grid.Row="0"
    x:Name="_reportRTFBox"
    MaxHeight="200"
    ScrollViewer.VerticalScrollBarVisibility="Auto"
    ScrollViewer.HorizontalScrollBarVisibility="Auto"
    IsReadOnly="True"/>

Many thanks,

Juanjo

Boby
Telerik team
 answered on 02 Feb 2012
3 answers
208 views
Hi,

after updating, I'm getting error when I try to change  AccentColor of metro theme. This is the error:

"Cannot set a property on object 'Telerik.Windows.Controls.MetroColorPalette' because it is in a read-only state."

Stack trace:

   at System.Windows.DependencyObject.SetValueCommon(DependencyProperty dp, Object value, PropertyMetadata metadata, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType, Boolean isInternal)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.MetroColorPalette.set_AccentColor(Color value) in c:\TB\100\WPF_Scrum\Current_HotFix\Sources\Development\Core\Controls\Theming\MetroColorPalette.cs:line 48
   at Ged.App.OnStartup(StartupEventArgs e) in D:\Paulo\Projetos\sygged\Ged\Ged\App.xaml.cs:line 36
   at System.Windows.Application.<.ctor>b__1(Object unused)
   at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
   at MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler)
   at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)
   at System.Windows.Threading.Dispatcher.WrappedInvoke(Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)
   at System.Windows.Threading.Dispatcher.WrappedInvoke(Delegate callback, Object args, Int32 numArgs)
   at System.Windows.Threading.DispatcherOperation.InvokeImpl()
   at System.Windows.Threading.DispatcherOperation.InvokeInSecurityContext(Object state)
   at System.Threading.ExecutionContext.runTryCode(Object userData)
   at System.Runtime.CompilerServices.RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(TryCode code, CleanupCode backoutCode, Object userData)
   at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean ignoreSyncCtx)
   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
   at System.Windows.Threading.DispatcherOperation.Invoke()
   at System.Windows.Threading.Dispatcher.ProcessQueue()
   at System.Windows.Threading.Dispatcher.WndProcHook(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
   at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
   at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
   at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
   at MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler)
   at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)
   at System.Windows.Threading.Dispatcher.WrappedInvoke(Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)
   at System.Windows.Threading.Dispatcher.WrappedInvoke(Delegate callback, Object args, Int32 numArgs)
   at System.Windows.Threading.Dispatcher.InvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Int32 numArgs)
   at System.Windows.Threading.Dispatcher.Invoke(DispatcherPriority priority, Delegate method, Object arg)
   at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam)
   at MS.Win32.UnsafeNativeMethods.DispatchMessage(MSG& msg)
   at System.Windows.Threading.Dispatcher.TranslateAndDispatchMessage(MSG& msg)
   at System.Windows.Threading.Dispatcher.PushFrameImpl(DispatcherFrame frame)
   at System.Windows.Threading.Dispatcher.PushFrame(DispatcherFrame frame)
   at System.Windows.Threading.Dispatcher.Run()
   at System.Windows.Application.RunDispatcher(Object ignore)
   at System.Windows.Application.RunInternal(Window window)
   at System.Windows.Application.Run(Window window)
   at System.Windows.Application.Run()
   at Ged.App.Main() in D:\Paulo\Projetos\sygged\Ged\Ged\obj\Debug\App.g.cs:line 0
   at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)
   at System.AppDomain.nExecuteAssembly(RuntimeAssembly assembly, String[] args)
   at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
   at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
   at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean ignoreSyncCtx)
   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
   at System.Threading.ThreadHelper.ThreadStart()

My code:

 
StyleManager.ApplicationTheme = new MetroTheme();
var findResource = FindResource("BaseColor");
if (findResource != null)
    MetroColors.PaletteInstance.AccentColor = (Color)findResource;

Dimitrina
Telerik team
 answered on 02 Feb 2012
0 answers
75 views
Strange red colour border line is coming if I select a gridview.  Can somebody tell me how to remove this red color border line.
Richa
Top achievements
Rank 1
 asked on 02 Feb 2012
1 answer
234 views

I am not able to get the scrolling working on RadPanes which are loaded using Prism's region manager onto a RadGroup.

Here is the main shell window which is hosting RadDock

<Grid>
   <telerik:RadDocking AllowUnsafeMode="True" Grid.Row="1"> 
            <telerik:RadDocking.DocumentHost>
                <telerik:RadSplitContainer>
                    <telerik:RadPaneGroup prism:RegionManager.RegionName="{x:Static CommonUI:Constants.RegionShellCenter}" />
                </telerik:RadSplitContainer>
            </telerik:RadDocking.DocumentHost>

       <telerik:RadSplitContainer InitialPosition="DockedRight" Width="600" >
                <telerik:RadPaneGroup prism:RegionManager.RegionName="{x:Static CommonUI:Constants.RegionShellRight}"/>
            </telerik:RadSplitContainer>
    </telerik:RadDocking>
  </Grid>

Here is my RadPane class that I load onto the above RadPaneGroup. This pane hosts a local usercontrol.

<telerik:RadPane x:Class="MyNamespace.ReservoirDataPane"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation"
             xmlns:prism="http://www.codeplex.com/prism"
             xmlns:local="clr-namespace:MyNamespace"
             Header="Reservoir">
     <local:ResPropControl/>
</telerik:RadPane>
 [Export]
    public partial class ReservoirDataPane : RadPane
    { }


I tried having Scroll around the RadPaneGroup and then inside RadPane around the local usercontrol. I also tried enabling it in the
Grid inside the usercontrol. None of this worked. Any help will be greatly appreciated. Thanks.
sonnet
Top achievements
Rank 1
 answered on 02 Feb 2012
2 answers
133 views
Hi,

Can we implement the spellChecker on Radbutton using Command binding? this there a sample implementation for this?

Regards,
Howell
Andrew
Telerik team
 answered on 01 Feb 2012
1 answer
155 views
Hi, I embedded a RadRibbonView  in a RadRibbonWindow. I expected the Application Icon to look as in Img.1 




But I get it as below - icon before the tabs.



Can someone please suggest me what I should be doing to achieve the Round Shaped Application icon as in IMG 1 ?

Thanks,
Nav

Petar Mladenov
Telerik team
 answered on 01 Feb 2012
2 answers
186 views
I want to use RadGridView to display missing relations in a database using the Entity framework. I have defined several columns with path bindings to subtables. (eg. Table1.ID) When the datagrid is loading such a column with a 1 to 1 relation the entity framework throws an exception if the related row does not exist in the database, but the RadGridView does not display this error. (I tried several binding settings and manually added an ExceptionValidationRule and set the ValidateOnTargedUpdated = true, but the errors don't show up in the datagrid) The ultimate solution would be if I could display an error message like "Related row in Table XXX and ID 123 not found" in the tooltip of the grid cell.

The only way the error gets displayed is to write a validator which e.g. checks for null values and then to enter the cell edit mode. Then the error gets displayed. But I never got the entity framework exception to display in the datagrid.

Another approach is to write a DataTemplate for every column which triggers the Validation.HasError event. Using this method the errors get displayed when the column is bound, but this does also not work for entity framework exceptions and needs a lot of xaml code. What is the best solution to get a good error message without to write a lot of xaml code?
Yordanka
Telerik team
 answered on 01 Feb 2012
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