Telerik Forums
UI for WPF Forum
or
Ask question
All Questions
Unanswered
Answered
25,595 questions
3 answers
162 views
Add Connector and change Offset on existing

Dear Support,
I'm very new with Telerik and I'm evaluating WPF Diagram in a new project for one of our most important customer.

One of Custom Shape we have to build must implement the function to add Connectors (for example by a Context Menu acttivated command).

The Shape has a linear aspect and adding commands are "Add connector on the Right" and "Add connector on the Left".

Both adding methods recalculate Offset of exixsting connectors and then add a new connector, with the aim to have connectors regularly spaced along the Shape.

Although I can see new connector and existing ones in the Shape Connectors List, the aspect of the rendered Shape does not change that is to say that I cannot see the new connector and exixsting ones do not change their position.

Those commands ​must operate (change Offset) also on Connectors with Connections, so for now I discarded the way of Remove and Add Connectors in order to avoid to loose existing Connection.

Where's my error?

Thank you

King Regards

 

Domenico

Diagram
Petar Mladenov
Telerik team
 answered on 24 Jul 2015
2 answers
193 views
RadRadialMenuItem.IconContent
How can I show an image in the RadRadialMenuItem from code?
RadialMenu
TRW
Top achievements
Rank 1
 answered on 23 Jul 2015
15 answers
446 views
Pivot grid not working

Hi,

I've been trying the examples with Pivot Grid but any of them seems to work.
I don't get any error message but the control doesn't show. 
Does it need any prerequisites?

<Window x:Class="RadPivotGrid_GettingStarted.MainWindow"
                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:local="clr-namespace:WpfApplication1.RadPivotGrid_GettingStarted"
                xmlns:pivot="http://schemas.telerik.com/2008/xaml/presentation/pivot"
                Title="MainWindow" Height="350" Width="525" >
     
     
    <Window.Resources>
        <pivot:LocalDataSourceProvider x:Key="LocalDataProvider" AggregatesPosition="Rows">
            <pivot:LocalDataSourceProvider.RowGroupDescriptions>
                <pivot:PropertyGroupDescription PropertyName="Name" />
            </pivot:LocalDataSourceProvider.RowGroupDescriptions>
            <pivot:LocalDataSourceProvider.ColumnGroupDescriptions>
                <pivot:DateTimeGroupDescription PropertyName="Date" Step="Month" />
            </pivot:LocalDataSourceProvider.ColumnGroupDescriptions>
            <pivot:LocalDataSourceProvider.AggregateDescriptions>
                <pivot:PropertyAggregateDescription PropertyName="Price" StringFormat="C" AggregateFunction="Average" />
                <pivot:PropertyAggregateDescription PropertyName="Quantity"/>
            </pivot:LocalDataSourceProvider.AggregateDescriptions>
        </pivot:LocalDataSourceProvider>
    </Window.Resources>
 
    <Grid>
        <pivot:RadPivotGrid Name="radPivotGrid1" DataProvider="{StaticResource LocalDataProvider}" >
        </pivot:RadPivotGrid>
    </Grid>
</Window>


Imports System
Imports System.Collections.Generic
Imports System.Windows
Imports Telerik.Pivot.Core
 
 
Namespace RadPivotGrid_GettingStarted
 
Public Class Product
        Public Property Name() As String
            Get
                Return m_Name
            End Get
            Set(ByVal value As String)
                m_Name = value
            End Set
        End Property
        Private m_Name As String
        Public Property Quantity() As Integer
            Get
                Return m_Quantity
            End Get
            Set(ByVal value As Integer)
                m_Quantity = value
            End Set
        End Property
        Private m_Quantity As Integer
        Public Property Price() As Double
            Get
                Return m_Price
            End Get
            Set(ByVal value As Double)
                m_Price = value
            End Set
        End Property
        Private m_Price As Double
        Public Property [Date]() As DateTime
            Get
                Return m_Date
            End Get
            Set(ByVal value As DateTime)
                m_Date = value
            End Set
        End Property
        Private m_Date As DateTime
    End Class
 
    Partial Public Class MainWindow
        Public Sub New()
            InitializeComponent()
            Try
                TryCast(Me.Resources("LocalDataProvider"), LocalDataSourceProvider).ItemsSource = GeneratePivotData()
            Catch ex As Exception
 
            End Try
 
        End Sub
 
        Private Shared Function GeneratePivotData() As IList(Of Product)
            Dim PivotData As IList(Of Product) = New List(Of Product)() From { _
        New Product() With { _
         .Name = "Pen", _
         .[Date] = New DateTime(2012, 1, 1, 0, 0, 0), _
         .Price = 10.4, _
         .Quantity = 148 _
        }, _
        New Product() With { _
         .Name = "Pen", _
         .[Date] = New DateTime(2012, 2, 1, 0, 0, 0), _
         .Price = 10.99, _
         .Quantity = 122 _
        }, _
        New Product() With { _
         .Name = "Pen", _
         .[Date] = New DateTime(2012, 3, 1, 0, 0, 0), _
         .Price = 11.24, _
         .Quantity = 80 _
        }, _
        New Product() With { _
         .Name = "Pen", _
         .[Date] = New DateTime(2012, 4, 1, 0, 0, 0), _
         .Price = 11.24, _
         .Quantity = 90 _
        }, _
        New Product() With { _
         .Name = "Pen", _
         .[Date] = New DateTime(2012, 5, 1, 0, 0, 0), _
         .Price = 11.14, _
         .Quantity = 140 _
        }, _
        New Product() With { _
         .Name = "Pen", _
         .[Date] = New DateTime(2012, 6, 1, 0, 0, 0), _
         .Price = 10.89, _
         .Quantity = 162 _
        }, _
        New Product() With { _
         .Name = "Pen", _
         .[Date] = New DateTime(2012, 7, 1, 0, 0, 0), _
         .Price = 10.89, _
         .Quantity = 181 _
        }, _
        New Product() With { _
         .Name = "Pen", _
         .[Date] = New DateTime(2012, 8, 1, 0, 0, 0), _
         .Price = 10.88, _
         .Quantity = 180 _
        }, _
        New Product() With { _
         .Name = "Pen", _
         .[Date] = New DateTime(2012, 9, 1, 0, 0, 0), _
         .Price = 11.0, _
         .Quantity = 116 _
        }, _
        New Product() With { _
         .Name = "Pen", _
         .[Date] = New DateTime(2012, 10, 1, 0, 0, 0), _
         .Price = 10.99, _
         .Quantity = 128 _
        }, _
        New Product() With { _
         .Name = "Pen", _
         .[Date] = New DateTime(2012, 11, 1, 0, 0, 0), _
         .Price = 10.95, _
         .Quantity = 145 _
        }, _
        New Product() With { _
         .Name = "Pen", _
         .[Date] = New DateTime(2012, 12, 1, 0, 0, 0), _
         .Price = 10.45, _
         .Quantity = 189 _
        }, _
        New Product() With { _
         .Name = "Pencil", _
         .[Date] = New DateTime(2012, 1, 1, 0, 0, 0), _
         .Price = 5.22, _
         .Quantity = 100 _
        }, _
        New Product() With { _
         .Name = "Pencil", _
         .[Date] = New DateTime(2012, 2, 1, 0, 0, 0), _
         .Price = 5.99, _
         .Quantity = 85 _
        }, _
        New Product() With { _
         .Name = "Pencil", _
         .[Date] = New DateTime(2012, 3, 1, 0, 0, 0), _
         .Price = 6.04, _
         .Quantity = 80 _
        }, _
        New Product() With { _
         .Name = "Pencil", _
         .[Date] = New DateTime(2012, 4, 1, 0, 0, 0), _
         .Price = 6.28, _
         .Quantity = 72 _
        }, _
        New Product() With { _
         .Name = "Pencil", _
         .[Date] = New DateTime(2012, 5, 1, 0, 0, 0), _
         .Price = 6.12, _
         .Quantity = 99 _
        }, _
        New Product() With { _
         .Name = "Pencil", _
         .[Date] = New DateTime(2012, 6, 1, 0, 0, 0), _
         .Price = 6.59, _
         .Quantity = 40 _
        }, _
        New Product() With { _
         .Name = "Pencil", _
         .[Date] = New DateTime(2012, 7, 1, 0, 0, 0), _
         .Price = 6.29, _
         .Quantity = 68 _
        }, _
        New Product() With { _
         .Name = "Pencil", _
         .[Date] = New DateTime(2012, 8, 1, 0, 0, 0), _
         .Price = 5.99, _
         .Quantity = 95 _
        }, _
        New Product() With { _
         .Name = "Pencil", _
         .[Date] = New DateTime(2012, 9, 1, 0, 0, 0), _
         .Price = 5.89, _
         .Quantity = 120 _
        }, _
        New Product() With { _
         .Name = "Pencil", _
         .[Date] = New DateTime(2012, 10, 1, 0, 0, 0), _
         .Price = 5.99, _
         .Quantity = 105 _
        }, _
        New Product() With { _
         .Name = "Pencil", _
         .[Date] = New DateTime(2012, 11, 1, 0, 0, 0), _
         .Price = 5.96, _
         .Quantity = 111 _
        }, _
        New Product() With { _
         .Name = "Pencil", _
         .[Date] = New DateTime(2012, 12, 1, 0, 0, 0), _
         .Price = 5.99, _
         .Quantity = 108 _
        }, _
        New Product() With { _
         .Name = "Notebook", _
         .[Date] = New DateTime(2012, 1, 1, 0, 0, 0), _
         .Price = 22.86, _
         .Quantity = 88 _
        }, _
        New Product() With { _
         .Name = "Notebook", _
         .[Date] = New DateTime(2012, 2, 1, 0, 0, 0), _
         .Price = 23.02, _
         .Quantity = 95 _
        }, _
        New Product() With { _
         .Name = "Notebook", _
         .[Date] = New DateTime(2012, 3, 1, 0, 0, 0), _
         .Price = 23.22, _
         .Quantity = 102 _
        }, _
        New Product() With { _
         .Name = "Notebook", _
         .[Date] = New DateTime(2012, 4, 1, 0, 0, 0), _
         .Price = 21.99, _
         .Quantity = 95 _
        }, _
        New Product() With { _
         .Name = "Notebook", _
         .[Date] = New DateTime(2012, 5, 1, 0, 0, 0), _
         .Price = 22.45, _
         .Quantity = 84 _
        }, _
        New Product() With { _
         .Name = "Notebook", _
         .[Date] = New DateTime(2012, 6, 1, 0, 0, 0), _
         .Price = 22.56, _
         .Quantity = 96 _
        }, _
        New Product() With { _
         .Name = "Notebook", _
         .[Date] = New DateTime(2012, 7, 1, 0, 0, 0), _
         .Price = 22.88, _
         .Quantity = 88 _
        }, _
        New Product() With { _
         .Name = "Notebook", _
         .[Date] = New DateTime(2012, 8, 1, 0, 0, 0), _
         .Price = 22.42, _
         .Quantity = 99 _
        }, _
        New Product() With { _
         .Name = "Notebook", _
         .[Date] = New DateTime(2012, 9, 1, 0, 0, 0), _
         .Price = 22.56, _
         .Quantity = 111 _
        }, _
        New Product() With { _
         .Name = "Notebook", _
         .[Date] = New DateTime(2012, 10, 1, 0, 0, 0), _
         .Price = 22.18, _
         .Quantity = 102 _
        }, _
        New Product() With { _
         .Name = "Notebook", _
         .[Date] = New DateTime(2012, 11, 1, 0, 0, 0), _
         .Price = 22.93, _
         .Quantity = 105 _
        }, _
        New Product() With { _
         .Name = "Notebook", _
         .[Date] = New DateTime(2012, 12, 1, 0, 0, 0), _
         .Price = 22.89, _
         .Quantity = 122 _
        } _
       }
 
            Return PivotData
        End Function
    End Class
 
 
End Namespace

PivotGrid
Cecilia
Top achievements
Rank 1
 answered on 23 Jul 2015
1 answer
634 views
Busy indicator and radGridView

Hi,

I Use radgridview with virtualization (not paging) to show data.

I want to put a busy indicator on my rad grid view that will not freeze the whole grid when loading , as the facebook / gmail apps.

 When i Use radbusyindicator as the parent of the grid or use the is busy property , the grid freeze while loading.

Thank you

 

 

BusyIndicator
Nasko
Telerik team
 answered on 23 Jul 2015
7 answers
294 views
Row number column with grouping

Hi,

following the demo I've created an attached property to my RadGridView that adds a column that displays the number of the row.

Everything works fine, but if my grid has a group descriptor defined in xaml or loaded from the custom settings saved by the user, then the numbers appear not sorted.

It seems like the numeration happens before the grouping, but I don't know how to fix it.

Here's my code:

public class RowNumeratorBehavior
    {
        public static bool GetRowNumerator(RadGridView grid)
        {
            return (bool)grid.GetValue(RowNumeratorProperty);
        }

        public static void SetRowNumerator(RadGridView grid, bool value)
        {
            grid.SetValue(RowNumeratorProperty, value);
        }

        public static readonly DependencyProperty RowNumeratorProperty =
            DependencyProperty.RegisterAttached("RowNumerator", typeof(bool), typeof(RowNumeratorBehavior), new UIPropertyMetadata(OnAutoSelectedChanged));

        static void OnAutoSelectedChanged(DependencyObject sender, DependencyPropertyChangedEventArgs e)
        {
            RadGridView source = (sender as RadGridView);
            if (source == null) return;
            if ((bool)e.NewValue)
            {
                source.DataContextChanged += source_DataContextChanged;
                Telerik.Windows.Persistence.Services.ServiceProvider.RegisterPersistenceProvider<Telerik.Windows.Persistence.Services.ICustomPropertyProvider>(typeof(RadGridView), new GridViewCustomPropertyProvider());
            }
            else
            {
                source.DataContextChanged -= source_DataContextChanged;
            }
        }

        private static void source_DataContextChanged(object sender, DependencyPropertyChangedEventArgs e)
        {
            RadGridView source = (sender as RadGridView);

            var numerator = new RowNumberColumn();
            numerator.Header = "";
            numerator.Name = "Numerator";
            numerator.UniqueName = "Numerator";
            numerator.IsReorderable = false;
            numerator.Background = System.Windows.Media.Brushes.White;
            source.Columns.Insert(0,numerator);
        }
    }

 

 public class RowNumberColumn : Telerik.Windows.Controls.GridViewDataColumn
    {        
        public override System.Windows.FrameworkElement CreateCellElement(Telerik.Windows.Controls.GridView.GridViewCell cell, object dataItem)
        {
            TextBlock textBlock = cell.Content as TextBlock;

            if (textBlock == null)
            {
                textBlock = new TextBlock();
            }

            textBlock.Text = ((this.DataControl.ItemsSource as IList).IndexOf(dataItem) + 1).ToString();

            return textBlock;
        }

        protected override void OnPropertyChanged(System.ComponentModel.PropertyChangedEventArgs args)
        {
            base.OnPropertyChanged(args);

            if (args.PropertyName == "DataControl")
            {
                if (this.DataControl != null && this.DataControl.Items != null)
                {
                    this.DataControl.Items.CollectionChanged += (s, e) =>
                    {
                        if (e.Action == System.Collections.Specialized.NotifyCollectionChangedAction.Remove)
                        {
                            this.Refresh();
                        }
                    };
                }
            }
        }
    } 

 

Thanks in advance,

Matteo

GridView
Dimitrina
Telerik team
 answered on 23 Jul 2015
1 answer
171 views
Separate theme for one control

We are using implicit styles like this:

<ResourceDictionary.MergedDictionaries>
    <ResourceDictionary Source="/Telerik.Windows.Themes.Office2013;component/Themes/Telerik.Windows.Controls.xaml"/>
    <ResourceDictionary Source="/Telerik.Windows.Themes.Office2013;component/Themes/System.Windows.xaml"/>
    ...
    <ResourceDictionary Source="/Telerik.Windows.Themes.Office2013;component/Themes/Telerik.Windows.Controls.GridView.xaml"/>
    ...
    ...
</ResourceDictionary.MergedDictionaries>
  

Now we want just one control (GridView) to be displayed with another theme (Windows8). What is the most efficient and easiest way to display all GridViews in our application (and there are a lot of them) with the design of the Windows8-theme?

TIA
Neils

General Discussions
Masha
Telerik team
 answered on 23 Jul 2015
18 answers
683 views
Databinding broken on RadPane selection change
Hi,
I'm currently using Telerik RadDocking to create an application which uses Prism, and MEF.
I'm using the region adapter recommended for adapting RadPanes to "regions".
I have two panes that are correctly added to the "bottom" region:
1)  First pane (Console) has a TextBox which is bound to a string property, StringContent, in the data context.
2)  Second pane (Errors List) has a DataGrid which is bound to an IEnumerable property, Errors, in the data context.
The panes have their data context set using MEF Import statements, in the XAML code behind:
[Import]
[SuppressMessage("Microsoft.Design", "CA1044:PropertiesShouldNotBeWriteOnly", Justification = "Needs to be a property to be composed by MEF")]
SampleViewModel ViewModel
{
    set
    {
        this.DataContext = value;
    }
}

When I first launch the application, the Console pane is selected in the bottom region, and the StringContent is correctly displayed in the TextBox.  When I select the Errors List pane (clicking the tab), the datagrid is properly filled.

However, when I go BACK to the Console pane, it is no longer updating/showing the StringContent value in the TextBox.  Similarly, if I navigate BACK to the Errors List pane, it is no longer showing the Errors contents.  Using Snoop, I was able to find the following error:
System.Windows.Data Error: 40 : BindingExpression path error: 'StringContent' property not found on 'object' ''ErrorListViewModel' (HashCode=14361357)'. BindingExpression:Path=StringContent; DataItem='ErrorListViewModel' (HashCode=14361357); target element is 'Label' (Name=''); target property is 'Content' (type 'Object')

You can see here, that it appears that the data context of the panes are somehow getting switched during tab navigation.  Obviously this bug breaks both panes, as they are no longer capable of displaying the correct data to the end user.
What do you recommend for resolving this?

Thanks.
Docking
Dietmar
Top achievements
Rank 1
 answered on 23 Jul 2015
1 answer
77 views
problem with clippanel

 hi

i have problem with clippanel

i want to use one color for part 1 and 2 in photo

i want my background chart is one color

my code use two way but nothing help me

01.<Style x:Key="ClipPanelStyle"
02.TargetType="telerik:ClipPanel">
03.     <Setter Property="Background">
04.         <Setter.Value>
05.             <SolidColorBrush Color="#096bb3"></SolidColorBrush>
06.             <!--<LinearGradientBrush EndPoint="1,0"
07.                          StartPoint="0,1"
08.                          SpreadMethod="Pad">
09.                 <GradientStop Color="Black"
10.                       Offset="0" />
11.                 <GradientStop Color="#FF00B4FF"
12.                       Offset="1" />
13.             </LinearGradientBrush>-->
14.         </Setter.Value>
15.     </Setter>
16. </Style>

i want part 1 and 2 be one color not be two color 

 

 

Chart
Petar Marchev
Telerik team
 answered on 23 Jul 2015
2 answers
130 views
Auto Selection like Winforms Combobox

Hi,
I have a combobox that has the ItemsSource bound to an observablecollection of Priority objects. Priority objects have and ID and a Description.
My combobox is in a DataTemplate for a listBoxItem that is bound to another collection of objects. Filter objects, which have a FilterPriorityID property
I set the combobox.DisplayMemberPath="Description" which seems fine.
I set the SelectedValuePath="{Binding FilterPriorityID}" expecting the combobox to auto select the correct Priority using the FilterPriorityID. but this is not the case.
Seems i am missing something, coming from Winforms.
Gary

<telerik:RadComboBox ItemsSource="{Binding Path=DataContext.EventFilterPriorites, RelativeSource={RelativeSource AncestorType=UserControl}}"
                                     SelectedValuePath="{Binding Path=EventFilterPriorityID}"
                                     DisplayMemberPath="Description"
                                     VerticalAlignment="Top"
                                     HorizontalAlignment="Left"
                                     Height="25"
                                     Margin="3"
                                     Width="100"/>

ComboBox
Kalin
Telerik team
 answered on 23 Jul 2015
3 answers
143 views
RadSchedule View Loaded event

I am using RadTab Control and one of the tab item host a Rad Schedule view, I have a event handler for calendar loaded event.

I want the event to be called only for the first time the tab is loaded, for that i have set IscontentPreserved = true for the tab control, but still the loaded event gets called every time.

Vikas

 

ScheduleView
Martin Ivanov
Telerik team
 answered on 23 Jul 2015
Narrow your results
Done
Selected tags
Tags
GridView
General Discussions
Chart
RichTextBox
Docking
ScheduleView
ChartView
TreeView
Diagram
Map
ComboBox
TreeListView
Window
RibbonView and RibbonWindow
PropertyGrid
DragAndDrop
TabControl
TileView
Carousel
DataForm
PDFViewer
MaskedInput (Numeric, DateTime, Text, Currency)
AutoCompleteBox
DatePicker
Buttons
ListBox
GanttView
PivotGrid
Spreadsheet
Gauges
NumericUpDown
PanelBar
DateTimePicker
DataFilter
Menu
ContextMenu
TimeLine
Calendar
Installer and Visual Studio Extensions
ImageEditor
BusyIndicator
Expander
Slider
TileList
PersistenceFramework
DataPager
Styling
TimeBar
OutlookBar
TransitionControl
Book
FileDialogs
ToolBar
ColorPicker
TimePicker
SyntaxEditor
MultiColumnComboBox
VirtualGrid
Wizard
ExpressionEditor
NavigationView (Hamburger Menu)
DesktopAlert
WatermarkTextBox
BarCode
SpellChecker
DataServiceDataSource
EntityFrameworkDataSource
RadialMenu
ChartView3D
Data Virtualization
BreadCrumb
ProgressBar
Sparkline
LayoutControl
TabbedWindow
ToolTip
CloudUpload
ColorEditor
TreeMap and PivotMap
EntityFrameworkCoreDataSource (.Net Core)
HeatMap
Chat (Conversational UI)
VirtualizingWrapPanel
Calculator
NotifyIcon
TaskBoard
TimeSpanPicker
BulletGraph
Licensing
WebCam
CardView
DataBar
FilePathPicker
PasswordBox
Rating
SplashScreen
Accessibility
Callout
CollectionNavigator
Localization
AutoSuggestBox
Security
VirtualKeyboard
HighlightTextBlock
TouchManager
StepProgressBar
Badge
OfficeNavigationBar
ExpressionParser
CircularProgressBar
SvgImage
PipsPager
SlideView
AI Coding Assistant
+? more
Top users last month
Rob
Top achievements
Rank 3
Bronze
Iron
Iron
Sergii
Top achievements
Rank 1
Iron
Iron
Dedalus
Top achievements
Rank 1
Iron
Iron
Lan
Top achievements
Rank 1
Iron
Doug
Top achievements
Rank 1
Want to show your ninja superpower to fellow developers?
Learn how
860 861
862
863 864
Top users last month
Rob
Top achievements
Rank 3
Bronze
Iron
Iron
Sergii
Top achievements
Rank 1
Iron
Iron
Dedalus
Top achievements
Rank 1
Iron
Iron
Lan
Top achievements
Rank 1
Iron
Doug
Top achievements
Rank 1
Want to show your ninja superpower to fellow developers?
Learn how
Want to show your ninja superpower to fellow developers?
Learn how