IHi,

I have a grouping action event (see below) that fires when as a user I drop a column into the grouping area.  I also get the action event when I close the group.  However, when I create the group descriptor pro-grammatically (see below) the action event does not fire but the group   displays properly.  When I close the  group pro-grammatically created group I get the action event but  the program crashes.  What am i missing?

        private void CreateGroup_Click(object sender, RoutedEventArgs e)
        {
            GroupDescriptor descriptor = new GroupDescriptor();
            descriptor.Member = "CategoryName";
            descriptor.SortDirection = ListSortDirection.Ascending;
            this.gridQueryResult.GroupDescriptors.Add(descriptor);
           
            descriptor = new GroupDescriptor();
            descriptor.Member = "ProductName";
            descriptor.SortDirection = ListSortDirection.Ascending;
            this.gridQueryResult.GroupDescriptors.Add(descriptor);           
        }

private void gridQueryResult_Grouping(object sender, GridViewGroupingEventArgs e)
        {
            Telerik.Windows.Controls.GridViewColumn column = ((ColumnGroupDescriptor)e.GroupDescriptor).Column;

            if (e.Action == GroupingEventAction.Place)
            {
                if (column != null)
                    column.IsVisible = false;
            }
            else if (e.Action == GroupingEventAction.Remove)
            {
                if (column != null)
                    column.IsVisible = true;
            }
        }

Hello,
I have set the SelectionMode="Extended" on my RadListBox; however the behavior identical to "Multiple", whereas Shift and Ctrl have no effect.  Below is my Xaml...


Is this a known bug or am I missing something?

Thanks in advance,
Steve

I have the following XML generated by the SaveLayout method:


When I execute the LoadLayout method with this XML, I receive this exception:

Specified argument was out of the range of valid values.
Parameter name: elementTypeName

Any help would be appreciated - thanks.

Hi, 

Does the Timeline control support multi-grouping, for instance I havea Group 1 when expanded it displays child groups and when child groups are expanded the related events are then displayed.

Thanks

Nevermind, I found this

Hi,

I have a RadDataFilter whose Source property is bound to ObservableCollection and AutoGenerateItemPropertyDefinitions is set to false:

            <telerik:RadDataFilter Name="radDataFilterSessions" Margin="-15,0,0,0"
                               MaxWidth="600" AutoGenerateItemPropertyDefinitions="False"
                               Source="{Binding DomainContext.Sessions}">
            </telerik:RadDataFilter>
            
Properties to filter are manually defined:
            
            radDataFilterSessions.ItemPropertyDefinitions.Add(new ItemPropertyDefinition("Name", typeof(string), "Name"));
            radDataFilterSessions.ItemPropertyDefinitions.Add(new ItemPropertyDefinition("Description", typeof(string), "Description"));
            radDataFilterSessions.ItemPropertyDefinitions.Add(new ItemPropertyDefinition("Recorded", typeof(DateTime), "Recorded"));
            radDataFilterSessions.ItemPropertyDefinitions.Add(new ItemPropertyDefinition("Duration", typeof(TimeSpan), "Duration"));
            
There seems to be problem with Duration (TimeSpan) property. I can add filter item with this property. I can change value and filter, but when I try to remove this filter item (remove a filter by using RadDataFilter's UI remove button), I got NullReferenceException:

at Telerik.Windows.Controls.Data.DataFilter.FilterEditorFactory.TimeSpanEditorConverter.Convert(Object value, Type targetType, Object parameter, CultureInfo culture) in c:\TB\117\WPF_Scrum\Release_WPF\Sources\Development\Controls\Data\DataFilter\Editors\FilterEditorFactory.cs:line 256
   at System.Windows.Data.BindingExpression.TransferValue(Object newValue, Boolean isASubPropertyChange)
   at System.Windows.Data.BindingExpression.Activate(Object item)
   at System.Windows.Data.BindingExpression.AttachToContext(AttachAttempt attempt)
   at System.Windows.Data.BindingExpression.MS.Internal.Data.IDataBindEngineClient.AttachToContext(Boolean lastChance)
   at MS.Internal.Data.DataBindEngine.Task.Run(Boolean lastChance)
   at MS.Internal.Data.DataBindEngine.Run(Object arg)
   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)
   
   
No problems with String and DateTime properties. I am using 2013.2.611.45 build.

hello
I have builder  a Telerik project as below,but when running  it went wrong,the errorMessage(InnerException) is  "Unable to find the name "mystyle" resources. The resource name is case-sensitive.",How can I achieve this?
thanks!
//RadElips.xaml
<telerik:RadWindow x:Class="WpfApplication1.RadElips"
  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"
  Header="RadElips" Height="300" Width="300">
    <telerik:RadWindow.Resources>
        <!--<Style  x:Key="mystyle1" TargetType="{x:Type Control}" >
            <Setter Property="Background" Value="Black"></Setter>
            <Setter Property="Foreground" Value="WhiteSmoke"></Setter>
            <Setter Property="FontSize" Value="18"></Setter>
            <Style.Triggers>
                <Trigger Property="IsMouseOver"  Value="True">
                    <Setter Property="Background" Value="Blue"></Setter>
                    <Setter Property="Foreground" Value="Green"></Setter>
                </Trigger>
            </Style.Triggers>
        </Style>-->
      
    </telerik:RadWindow.Resources>
    <Grid>
        <StackPanel>
            <Ellipse x:Name="elipse1" Stroke="Red" Height="120" Width="120"  StrokeThickness="6" Fill="Green"  ></Ellipse>
            <Button x:Name="btn01" Content="ok" Width="90" Height="38" Style="{StaticResource mystyle}"></Button>
        </StackPanel>
    </Grid>
</telerik:RadWindow>
//app.xaml
<Application x:Class="WpfApplication1.App"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
           >
    <Application.Resources>
        <Style x:Key="mystyle">
            <Setter Property="Control.Background" Value="Black"></Setter>
            <Setter Property="Control.Foreground" Value="White"></Setter>
        </Style>
    </Application.Resources>
</Application>
//app.xaml.cs
using System;
using System.Collections.Generic;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Windows;
using Telerik.Windows.Controls;
namespace WpfApplication1
{
    /// <summary>
    /// App.xaml 的交互逻辑
    /// </summary>
    public partial class App : Application
    {
        public App()
        {
            StyleManager.ApplicationTheme = new Windows8Theme();
        }
        protected override void OnStartup(StartupEventArgs e)
        {
         //Telerik Window - RadElips
            RadElips   radelips= new RadElips();
            radelips.Show();
            base.OnStartup(e);
        }
    }
}

I'm sorry, ask so many questions。

I  have builder a  RadControlsWPF Application with  implicit style 
No matter when running, or design，can't show Window as a main  RadWindow,How can i solve this problem

thanks !

I have a RadGridView and in this RadGridView I have the following column:



I want to either enable/disable or set the read only flag on another two columns in the grid based on the checkbox column.

 

So far I have tried binding the `IsReadOnly` and `IsEnabled` property to `Revoked` but this doesn't seem to work, and I can see that the `Revoked` property is being set and the `RaisePropertyChanged` event is recurring.

Any help would be much appreciated.

Further details of the code in the ViewModel




And the NotificationAgreement class has the following property.

Hi,

I am aware of annotation support of pdf viewer and has gone through this link. But these annotations give us destination that are of type location i.e. the destination has page number and offset.
In pdf writer, when we create a destination and we give a name. And I want to navigate based on the named text.

We are using pdf viewer for viewing help manual and page number will not work as any update in the manual that alters the page no will need update of the code and rebuilding the software. So we need bookmark kind of support where string can be used to navigate instead of page number.

This is an urgent requirement.

Thanks
Ritwick