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4 answers
84 views
Hello,
     I several checkbox columns on my grid and every once in a while a checkbox in one of the rows turns to the word True or False.
Usually when I scroll up or down it will change back to a checkbox but sometimes it won't and when I click on the checkbox that's changed the cell is protected. I have to close the app down. 
Jorge Gonzalez
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 answered on 04 Feb 2010
2 answers
233 views
When the RadComboBox is in IsEditable mode, how do I set the MaxLength and CharacterCasing properties of the TextBox used for entering data?
Konstantina
Telerik team
 answered on 04 Feb 2010
10 answers
250 views
Hello,

The moment I try to edit the PaneHeader Style through Blend (Edit Style >create a copy), after putting the PaneHeader WPF component in a window.xaml, it returns "invalid xaml".. see screenshot.



I would like to make them blue, but have a hard time with the theming process.

would you have a custom colour theming of the Radpane working sample as described in the help documentation ?

Cheers
Konstantina
Telerik team
 answered on 04 Feb 2010
3 answers
95 views
Hi, Im using Prism + Wpf and trying to get the commanding to work on a button i have placed in the panel bar using a datatemplete. Here is a copy of the datatemplate:

<DataTemplate x:Key="RadPanelBarItemTemplate">
                <StackPanel Orientation="Vertical" Margin="1" HorizontalAlignment="Left">
                    <Button Width="140" Height="25" Margin="2"
                            Tag="{Binding Tag}"
                            Content="{Binding Title}"
                            ToolTip="{Binding Description}"
                            commands:Click.Command="{Binding NavigationBarClickCommand}"
                            commands:Click.CommandParameter="{Binding Tag}"/>
                </StackPanel>
            </DataTemplate>

Is this possible, at the moment my command is never getting fired. Or should I be using a different approach?

Thanks, Mark


Tihomir Petkov
Telerik team
 answered on 04 Feb 2010
3 answers
179 views
Hi,

i try to render WPF content with telerik chart-controls in VB6. This is possible if you are using the Microsoft Interop Forms Toolkit (http://msdn.microsoft.com/en-us/vbasic/bb419144.aspx). If i'm using the 2D controls everiting is fine. But if I switch to 3D I get a OutOfMemoryException or NullReferenceException.

Here is my XAML:
<UserControl x:Class="UserControl1" 
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
    xmlns:charts="clr-namespace:Telerik.Windows.Controls;assembly=Telerik.Windows.Controls.Charting">  
    <Grid> 
        <charts:RadChart x:Name="MyChart"/>  
    </Grid> 
</UserControl> 
 

This is the code-behind from the 2D version:
    Public Sub New()  
 
        ' This call is required by the Windows Form Designer.  
        InitializeComponent()  
 
        ' Add any initialization after the InitializeComponent() call.  
        MyChart.DefaultSeriesDefinition = New BarSeriesDefinition  
 
        Dim itemSource As Double() = {5, 9, 17, 10, 11, 3, 12}  
        MyChart.ItemsSource = itemSource  
 
    End Sub 
 

And here is the code-behind from the 3D version:
    Public Sub New()  
 
        ' This call is required by the Windows Form Designer.  
        InitializeComponent()  
 
        ' Add any initialization after the InitializeComponent() call.  
        MyChart.DefaultSeriesDefinition = New Bar3DSeriesDefinition  
 
        Dim itemSource As Double() = {5, 9, 17, 10, 11, 3, 12}  
        MyChart.ItemsSource = itemSource  
 
        AddHandler MyChart.DefaultView.ChartArea.Loaded, AddressOf Me.RadChart_Loaded  
 
    End Sub 
 
    Private Sub RadChart_Loaded(ByVal sender As ObjectByVal e As RoutedEventArgs)  
 
        Dim camera As New CameraExtension  
        camera.SpinAxis = SpinAxis.XY  
        camera.ZoomEnabled = True 
 
        MyChart.DefaultView.ChartArea.Extensions.Add(camera)  
 
    End Sub 

The same code works in a normal .NET-project and also in a WinForms-project on the ElementHost.

Best regards,
Dimi
Dimi
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 answered on 04 Feb 2010
3 answers
627 views
Good Morning,

I have been working with the WPF demo/code.  It uses 

Telerik.Windows.QuickStart.dll extensively and I cannot track what is being done.  It hides many aspects, such as page transfers and returns.  Is there a place where I can see what is going on?

Take Care,
Dave

Hristo
Telerik team
 answered on 04 Feb 2010
2 answers
129 views
Hi all. I was wondering if it's possible to show the list of items in a RadComboBox by using a RadGridView. In other words, that when the user expands the RadComboBox, the items inside get shown in a RadGridView (with headers). I need this because I got a lot of info to show for each element (item) of the RadComboBox.

Thanks.

Hugo Aristizabal.
Hugo Aristizabal
Top achievements
Rank 2
 answered on 04 Feb 2010
1 answer
115 views
Hello

I have the setup as described below. I use the trial version binaries 2009.3.1314.35.
If you run this example and try to insert a new row by pressing the 'insert'-Key, then you result in an ArgumentException:
{"Property with specified name:  cannot be found on type: WpfApplication1.SimpleObject\r\nParameter name: propertyName"}.

The problem seems to be the 'SimpleObject'-Class. If you remove, or comment out, the ICustomTypeDescriptor interface from the class declaration then everything works ok.

Do you know this problem? Is there a solution or a work around?

Best regards,
Franziska

xaml:
<telerik:RadGridView x:Name="gridView"  
                                     ShowGroupPanel="False" IsFilteringAllowed="False" AutoGenerateColumns="False" 
                                     ItemsSource="{Binding PmodCollection}"  
                                     AddingNewDataItem="gridView_AddingNewDataItem" > 
            <telerik:RadGridView.Columns> 
                <telerik:GridViewDataColumn Header="Test" DataMemberBinding="{Binding Test}" /> 
                <telerik:GridViewComboBoxColumn UniqueName="columnDescriptor" Header="Descriptor" 
                                                        DataMemberBinding="{Binding SimpleObject}" DisplayMemberPath="Descriptor" 
                                                        ItemsSource="{Binding SimpleObjChoiceList}"/> 
            </telerik:RadGridView.Columns> 
</telerik:RadGridView> 
Code behind:
public partial class Window1 : Window 
        public Window1() 
        { 
            InitializeComponent(); 
 
            this.DataContext = new DataContext(); 
        } 
 
        private void gridView_AddingNewDataItem(object sender, GridViewAddingNewEventArgs e) 
        { 
            e.NewObject = new SimpleObjectPMod(); 
        } 
DataContext:
class DataContext 
        private List<SimpleObject> simpleObjs; 
        private ObservableCollection<SimpleObjectPMod> pmodCollection; 
 
        public DataContext() 
        { 
            simpleObjs = new List<SimpleObject>(); 
            simpleObjs.Add(new SimpleObject() { Descriptor = "bla" }); 
            simpleObjs.Add(new SimpleObject() { Descriptor = "fasel" }); 
 
            pmodCollection = new ObservableCollection<SimpleObjectPMod>(); 
        } 
 
        public List<SimpleObject> SimpleObjChoiceList 
        { 
            get { return simpleObjs; } 
        } 
 
        public ObservableCollection<SimpleObjectPMod> PmodCollection 
        { 
            get { return pmodCollection; } 
        } 
PMod:
class SimpleObjectPMod 
        public string Test 
        { 
            get; set; 
        } 
 
        public SimpleObject SimpleObject 
        { 
            get; set; 
        } 
Simple Object:
class SimpleObject : ICustomTypeDescriptor
{
        public string Descriptor
        {
            get; set;
        }

        #region Implementation of ICustomTypeDescriptor
        public AttributeCollection GetAttributes()
        {
            return TypeDescriptor.GetAttributes(this, true);
        }
        public string GetClassName()
        {
            return TypeDescriptor.GetClassName(this, true);
        }
        public string GetComponentName()
        {
            return TypeDescriptor.GetComponentName(this, true);
        }
        public TypeConverter GetConverter()
        {
            return TypeDescriptor.GetConverter(this, true);
        }
        public EventDescriptor GetDefaultEvent()
        {
            return TypeDescriptor.GetDefaultEvent(this, true);
        }
        public PropertyDescriptor GetDefaultProperty()
        {
            return TypeDescriptor.GetDefaultProperty(this, true);
        }
        public object GetEditor(Type editorBaseType)
        {
            return TypeDescriptor.GetEditor(this, editorBaseType, true);
        }
        public EventDescriptorCollection GetEvents()
        {
            return TypeDescriptor.GetEvents(this, true);
        }
        public EventDescriptorCollection GetEvents(Attribute[] attributes)
        {
            return TypeDescriptor.GetEvents(this, attributes, true);
        }
        public PropertyDescriptorCollection GetProperties()
        {
            return GetProperties(null);
        }
        public PropertyDescriptorCollection GetProperties(Attribute[] attributes)
        {
            return TypeDescriptor.GetProperties(this, attributes, true);
        }
        public object GetPropertyOwner(PropertyDescriptor pd)
        {
            return this;
        }
        #endregion
}
Nedyalko Nikolov
Telerik team
 answered on 04 Feb 2010
1 answer
107 views
Hi,

I am using the DatePicker as an usercontrol and in the Constructor of the Cntrol I am setting the following dates.

dateCtrl.DisplayDateStart = Convert.ToDateTime("01/01/2003", System.Globalization.CultureInfo.CurrentCulture);                        dateCtrl.DisplayDateEnd = Convert.ToDateTime("18/01/2010", System.Globalization.CultureInfo.CurrentCulture); 
dateCtrl.SelectableDateEnd = Convert.ToDateTime("18/01/2010", System.Globalization.CultureInfo.CurrentCulture);                        
dateCtrl.SelectedDate = Convert.ToDateTime("18/01/2010", System.Globalization.CultureInfo.CurrentCulture);

and while loading the control it throws the following exception:

System.ArgumentOutOfRangeException was unhandled
  Message="Invalid DisplayDateEnd value.\r\nParameter name: sender"
  Source="Telerik.Windows.Controls.Input"
  ParamName="sender"
  StackTrace:
       at Telerik.Windows.Controls.RadCalendar.OnDisplayDateEndChanged(DependencyObject sender, DependencyPropertyChangedEventArgs e)
       at System.Windows.DependencyObject.OnPropertyChanged(DependencyPropertyChangedEventArgs e)
       at System.Windows.FrameworkElement.OnPropertyChanged(DependencyPropertyChangedEventArgs e)
       at System.Windows.DependencyObject.NotifyPropertyChange(DependencyPropertyChangedEventArgs args)
       at System.Windows.DependencyObject.UpdateEffectiveValue(EntryIndex entryIndex, DependencyProperty dp, PropertyMetadata metadata, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, Boolean coerceWithDeferredReference, OperationType operationType)
       at System.Windows.StyleHelper.ApplyTemplatedParentValue(DependencyObject container, FrameworkObject child, Int32 childIndex, FrugalStructList`1& childRecordFromChildIndex, DependencyProperty dp, FrameworkElementFactory templateRoot)
       at System.Windows.StyleHelper.InvalidatePropertiesOnTemplateNode(DependencyObject container, FrameworkObject child, Int32 childIndex, FrugalStructList`1& childRecordFromChildIndex, Boolean isDetach, FrameworkElementFactory templateRoot)
       at System.Windows.StyleHelper.LoadOptimizedTemplateContent(DependencyObject container, ParserContext parserContext, OptimizedTemplateContent optimizedTemplateContent, FrameworkTemplate frameworkTemplate, IComponentConnector componentConnector, IStyleConnector styleConnector, List`1 affectedChildren, UncommonField`1 templatedNonFeChildrenField)
       at System.Windows.FrameworkTemplate.LoadContent(DependencyObject container, List`1 affectedChildren, UncommonField`1 templatedNonFeChildrenField)
       at System.Windows.StyleHelper.ApplyTemplateContent(UncommonField`1 dataField, DependencyObject container, FrameworkElementFactory templateRoot, Int32 lastChildIndex, HybridDictionary childIndexFromChildID, FrameworkTemplate frameworkTemplate)
       at System.Windows.FrameworkTemplate.ApplyTemplateContent(UncommonField`1 templateDataField, FrameworkElement container)
       at System.Windows.FrameworkElement.ApplyTemplate()
       at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
       at System.Windows.UIElement.Measure(Size availableSize)
       at MS.Internal.Helper.MeasureElementWithSingleChild(UIElement element, Size constraint)
       at System.Windows.Controls.ContentPresenter.MeasureOverride(Size constraint)
       at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
       at System.Windows.UIElement.Measure(Size availableSize)
       at System.Windows.Controls.Border.MeasureOverride(Size constraint)
       at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
       at System.Windows.UIElement.Measure(Size availableSize)
       at System.Windows.Controls.Control.MeasureOverride(Size constraint)
       at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
       at System.Windows.UIElement.Measure(Size availableSize)
       at System.Windows.Controls.DockPanel.MeasureOverride(Size constraint)
       at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
       at System.Windows.UIElement.Measure(Size availableSize)
       at System.Windows.Controls.StackPanel.MeasureOverride(Size constraint)
       at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
       at System.Windows.UIElement.Measure(Size availableSize)
       at MS.Internal.Helper.MeasureElementWithSingleChild(UIElement element, Size constraint)
       at System.Windows.Controls.ContentPresenter.MeasureOverride(Size constraint)
       at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
       at System.Windows.UIElement.Measure(Size availableSize)
       at System.Windows.Controls.Border.MeasureOverride(Size constraint)
       at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
       at System.Windows.UIElement.Measure(Size availableSize)
       at System.Windows.Controls.Control.MeasureOverride(Size constraint)
       at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
       at System.Windows.UIElement.Measure(Size availableSize)
       at System.Windows.Controls.StackPanel.MeasureOverride(Size constraint)
       at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
       at System.Windows.UIElement.Measure(Size availableSize)
       at System.Windows.ContextLayoutManager.UpdateLayout()
       at System.Windows.ContextLayoutManager.UpdateLayoutCallback(Object arg)
       at System.Windows.Media.MediaContext.InvokeOnRenderCallback.DoWork()
       at System.Windows.Media.MediaContext.FireInvokeOnRenderCallbacks()
       at System.Windows.Media.MediaContext.RenderMessageHandlerCore(Object resizedCompositionTarget)
       at System.Windows.Media.MediaContext.RenderMessageHandler(Object resizedCompositionTarget)
       at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Boolean isSingleParameter)
       at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Boolean isSingleParameter, Delegate catchHandler)
       at System.Windows.Threading.Dispatcher.WrappedInvoke(Delegate callback, Object args, Boolean isSingleParameter, Delegate catchHandler)
       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)
       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, Boolean isSingleParameter)
       at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Boolean isSingleParameter, Delegate catchHandler)
       at System.Windows.Threading.Dispatcher.WrappedInvoke(Delegate callback, Object args, Boolean isSingleParameter, Delegate catchHandler)
       at System.Windows.Threading.Dispatcher.InvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Boolean isSingleParameter)
       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.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 ITV.MSS.Shell.App.Main() in E:\MediaSales\MediaSalesSuite\Dev\Shell\ITV.MSS.Shell.Shell\obj\Debug\App.g.cs:line 0
       at System.AppDomain._nExecuteAssembly(Assembly assembly, String[] args)
       at System.AppDomain.nExecuteAssembly(Assembly assembly, String[] args)
       at System.Runtime.Hosting.ManifestRunner.Run(Boolean checkAptModel)
       at System.Runtime.Hosting.ManifestRunner.ExecuteAsAssembly()
       at System.Runtime.Hosting.ApplicationActivator.CreateInstance(ActivationContext activationContext, String[] activationCustomData)
       at System.Runtime.Hosting.ApplicationActivator.CreateInstance(ActivationContext activationContext)
       at System.Activator.CreateInstance(ActivationContext activationContext)
       at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssemblyDebugInZone()
       at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
       at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
       at System.Threading.ThreadHelper.ThreadStart()
  InnerException:



If I Comment the following lines Or Set the DisplayDateEnd to DateTime.Now() then it works fine.

dateCtrl.DisplayDateStart = Convert.ToDateTime("01/01/2003", System.Globalization.CultureInfo.CurrentCulture);                       
//dateCtrl.DisplayDateEnd = Convert.ToDateTime("18/01/2010", System.Globalization.CultureInfo.CurrentCulture); 
dateCtrl.SelectableDateEnd = Convert.ToDateTime("18/01/2010", System.Globalization.CultureInfo.CurrentCulture);                        
dateCtrl.SelectedDate = Convert.ToDateTime("18/01/2010", System.Globalization.CultureInfo.CurrentCulture);

Please let me know what can be the possible cause of this exception.

Thanks,
Anjan
Konstantina
Telerik team
 answered on 04 Feb 2010
1 answer
109 views
HI,

I'm trying to style my RadGridView row based upon a style as detailed in the example at the following address:-

http://blogs.telerik.com/blogs/posts/09-02-03/how_to_use_custom_row_layouts_in_radgridview_for_wpf.aspx

However, my application refuses to compile as it does not recognize the ColumnName property used in the GridViewCell tag.

I've looked at the GridViewCell object in the object browser and cannot see the property there either. Has this been replaced with some other method of referencing the column from within a style?

Many thanks,
Peter.
Vlad
Telerik team
 answered on 04 Feb 2010
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