Questions on UI for WPF Forum

2 answers

138 views

I noticed that rows of hierarchy child aren't virtualized. So If I have a child table with 500 rows, 500 UI controls will be generated for each of the rows. You can use Snoop to see that. (Rows of root table, at the top of the hierarchy are virtualized, as expected).

Is there a way to extend virtualization to support child tables? If not, is there a plan to support it in the future?

GridView

answered on 27 Dec 2010

3 answers

102 views

Rad TextBox inside layout?

having any rad text box in WPF?

if possible mean give me some suggession?
if i use visual studio 2010 text box mean rad properties may assign in the textbox also?
or give me suitable solution.

General Discussions

answered on 27 Dec 2010

1 answer

88 views

Index was out of range. Must be non-negative and less than the size of the collection.

Hello i am geting this excpetion when i am populating sheduleview from db. It is possible to bind a list with more than 250 or 300 appointments?
Because I am getting this exception.

at System.ThrowHelper.ThrowArgumentOutOfRangeException()
   at System.Collections.Generic.List`1.get_Item(Int32 index)
   at Telerik.Windows.Controls.AppointmentsHelper.SplitToColumns(AppointmentSlotGroupInfo groupInfo, Boolean roundAppointmentDurationToDay) in c:\Builds\WPF_Scrum\Release_WPF_2010_Q3\Sources\Development\Controls\ScheduleView\ScheduleView\Helpers\AppointmentsHelper.cs:line 330
   at Telerik.Windows.Controls.GroupHeader.CalculateAppointmentItemRenderRectangle() in c:\Builds\WPF_Scrum\Release_WPF_2010_Q3\Sources\Development\Controls\ScheduleView\ScheduleView\Controls\GroupHeader.cs:line 565
   at Telerik.Windows.Controls.GroupHeader.set_CalculatedChildrenLength(Double value) in c:\Builds\WPF_Scrum\Release_WPF_2010_Q3\Sources\Development\Controls\ScheduleView\ScheduleView\Controls\GroupHeader.cs:line 200
   at Telerik.Windows.Controls.GroupHeader.SetAvailableLength(Double availableLength, Boolean isHorizontal) in c:\Builds\WPF_Scrum\Release_WPF_2010_Q3\Sources\Development\Controls\ScheduleView\ScheduleView\Controls\GroupHeader.cs:line 459
   at Telerik.Windows.Controls.AppointmentsPanel.UpdateHeaderAvailableSize(List`1 headers, Boolean isHorizontal, Double availableLength, Boolean initialize, Boolean updateDesiredLengthForLevel) in c:\Builds\WPF_Scrum\Release_WPF_2010_Q3\Sources\Development\Controls\ScheduleView\ScheduleView\Controls\AppointmentsPanel.cs:line 617
   at Telerik.Windows.Controls.AppointmentsPanel.MeasureOverride(Size availableSize) in c:\Builds\WPF_Scrum\Release_WPF_2010_Q3\Sources\Development\Controls\ScheduleView\ScheduleView\Controls\AppointmentsPanel.cs:line 139
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Controls.Grid.MeasureCell(Int32 cell, Boolean forceInfinityV)
   at System.Windows.Controls.Grid.MeasureCellsGroup(Int32 cellsHead, Size referenceSize, Boolean ignoreDesiredSizeU, Boolean forceInfinityV)
   at System.Windows.Controls.Grid.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.UIElement.UpdateLayout()
   at Telerik.Windows.Media.Imaging.ExportHelper.GetBitmapSource(FrameworkElement element, Double dpiX, Double dpiY) in c:\Builds\WPF_Scrum\Release_WPF_2010_Q3\Sources\Development\Core\Controls\ExportExtensions\ExportHelper.cs:line 85
   at Telerik.Windows.Media.Imaging.ExportHelper.GetElementImage(FrameworkElement element) in c:\Builds\WPF_Scrum\Release_WPF_2010_Q3\Sources\Development\Core\Controls\ExportExtensions\ExportHelper.cs:line 63
   at Telerik.Windows.Controls.TransitionControl.TransitionPresenter.PrepareAnimation() in c:\Builds\WPF_Scrum\Release_WPF_2010_Q3\Sources\Development\Core\Controls\TransitionControl\TransitionPresenter.cs:line 341
   at Telerik.Windows.Controls.TransitionControl.TransitionPresenter.ChangeContent() in c:\Builds\WPF_Scrum\Release_WPF_2010_Q3\Sources\Development\Core\Controls\TransitionControl\TransitionPresenter.cs:line 426
   at Telerik.Windows.Controls.TransitionControl.TransitionPresenter.OnContentChange(DependencyObject d, DependencyPropertyChangedEventArgs e) in c:\Builds\WPF_Scrum\Release_WPF_2010_Q3\Sources\Development\Core\Controls\TransitionControl\TransitionPresenter.cs:line 381
   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, Boolean coerceWithCurrentValue, OperationType operationType)
   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.TransitionControl.TransitionPresenter.set_CurrentContent(Object value) in c:\Builds\WPF_Scrum\Release_WPF_2010_Q3\Sources\Development\Core\Controls\TransitionControl\TransitionPresenter.cs:line 161
   at Telerik.Windows.Controls.RadTransitionControl.OnContentChanged(Object oldContent, Object newContent) in c:\Builds\WPF_Scrum\Release_WPF_2010_Q3\Sources\Development\Core\Controls\TransitionControl\RadTransitionControl.cs:line 168
   at System.Windows.Controls.ContentControl.OnContentChanged(DependencyObject d, 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, Boolean coerceWithCurrentValue, OperationType operationType)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty dp)
   at System.Windows.StyleHelper.InvalidateDependents(Style ownerStyle, FrameworkTemplate frameworkTemplate, DependencyObject container, DependencyProperty dp, FrugalStructList`1& dependents, Boolean invalidateOnlyContainer)
   at System.Windows.StyleHelper.OnTriggerSourcePropertyInvalidated(Style ownerStyle, FrameworkTemplate frameworkTemplate, DependencyObject container, DependencyProperty dp, DependencyPropertyChangedEventArgs changedArgs, Boolean invalidateOnlyContainer, FrugalStructList`1& triggerSourceRecordFromChildIndex, FrugalMap& propertyTriggersWithActions, Int32 sourceChildIndex)
   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, Boolean coerceWithCurrentValue, OperationType operationType)
   at System.Windows.DependencyObject.SetValueCommon(DependencyProperty dp, Object value, PropertyMetadata metadata, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType, Boolean isInternal)
   at System.Windows.DependencyObject.SetValue(DependencyPropertyKey key, Object value)
   at Telerik.Windows.Controls.RadScheduleView.set_CurrentVisibleRangeText(String value) in c:\Builds\WPF_Scrum\Release_WPF_2010_Q3\Sources\Development\Controls\ScheduleView\ScheduleView\Controls\RadScheduleView.cs:line 94
   at Telerik.Windows.Controls.RadScheduleView.UpdateCurrentVisibleRangeText() in c:\Builds\WPF_Scrum\Release_WPF_2010_Q3\Sources\Development\Controls\ScheduleView\ScheduleView\Controls\RadScheduleView.cs:line 136
   at Telerik.Windows.Controls.RadScheduleView.UpdateVisibleRange() in c:\Builds\WPF_Scrum\Release_WPF_2010_Q3\Sources\Development\Controls\ScheduleView\ScheduleView\Controls\RadScheduleView.cs:line 178
   at Telerik.Windows.Controls.ScheduleViewBase.OnCurrentDatePropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e) in c:\Builds\WPF_Scrum\Release_WPF_2010_Q3\Sources\Development\Controls\ScheduleView\ScheduleView\Controls\ScheduleView.cs:line 2719
   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, Boolean coerceWithCurrentValue, OperationType operationType)
   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 MS.Internal.Data.PropertyPathWorker.SetValue(Object item, Object value)
   at MS.Internal.Data.ClrBindingWorker.UpdateValue(Object value)
   at System.Windows.Data.BindingExpression.UpdateSource(Object value)

ScheduleView

answered on 27 Dec 2010

0 answers

93 views

Unable to view RadChart data when RadScheduleView is placed in the same view

Hi,

I have a screen in which i am required to place both RadChart and RadScheduleView . RadChart has some data associated with it, and RadScheduleView has no data. When I add the reference for RadScheduleView , which is "Telerik.Windows.Controls.ScheduleView", the data which is associated with the charts are no longer visible and in place of that data, random data like " Chart axis label, ChartChartTitle" etc appears. Why is this happening, and how can this be solved? Please refer attached images of the Radcharts showing the random data. Also, Please refer the following link for sample code regarding the mentioned error.

http://www.filedropper.com/radchartbug

-Sangeetha

ScheduleView

asked on 26 Dec 2010

4 answers

414 views

Initializing data on AddingNewDataItem

Hello

I'm trying to set default values for a DataRow when it is newly inserted into a RadGridView. See the cut down sample below.
If I use AddingNewDataItem to create the row, then I get an error.
If instead I let the grid create the row, and then use BeginningEdit to set the values, then the values don't show.

What's the best way to set default values with a new DataRow?

Many Thanks

public partial class MainWindow : Window

{

private RadGridView _grid;

private DataTable _table;

public MainWindow()

{

InitializeComponent();

_grid = new RadGridView { AutoGenerateColumns = false, CanUserInsertRows = true, ShowInsertRow = true };

Content = _grid;

_grid.AddingNewDataItem += new EventHandler<GridViewAddingNewEventArgs>( _grid_AddingNewDataItem );

_grid.BeginningEdit += new EventHandler<GridViewBeginningEditRoutedEventArgs>( _grid_BeginningEdit );

_grid.Columns.Add( new GridViewDataColumn { DataMemberBinding = new Binding { Path = new PropertyPath( "Column1" ), Mode = BindingMode.TwoWay } } );

_grid.Columns.Add( new GridViewDataColumn { DataMemberBinding = new Binding { Path = new PropertyPath( "Column2" ), Mode = BindingMode.TwoWay } } );

_table = new DataTable();

_table.Columns.Add( "Column1", typeof( string ) );

_table.Columns.Add( "Column2", typeof( string ) );

_table.Rows.Add( "row1-col1", "row1-col2" );

_grid.ItemsSource = _table.DefaultView;

}

private void _grid_BeginningEdit( object sender, GridViewBeginningEditRoutedEventArgs e )

{

// This won't show "INIT" until Column2 is focused

//DataRowView dataRowView = e.Row.Item as DataRowView;

//if( dataRowView.Row.RowState == DataRowState.Detached )

//{

// dataRowView[ "Column2" ] = "INIT";

//}

}

private void _grid_AddingNewDataItem( object sender, GridViewAddingNewEventArgs e )

{

// This will cause an error: Cannot add external objects to this list

//e.NewObject = _table.DefaultView.AddNew();

}

GridView

answered on 26 Dec 2010

1 answer

98 views

Adding gauge only with code

I'm trying to add a gauge to an existing wrapPanel but I'm doing something wrong. my code is :

Grid newGrid = new Grid();

RadGauge newRG =

new RadGauge();

LinearGauge newLG = new LinearGauge();

LinearScale newLS = new LinearScale();

IndicatorList newIL = new IndicatorList();

Marker newMarker = new Marker();

newIL.Items.Add(newMarker);

newLS.Indicators.Add(newIL);

newLG.Items.Add(newLS);

newRG.Content = newLG;

newGrid.Children.Add(newRG);

GaugesWrapPanle.Children.Add(newGrid);

The error I get is :
"Unable to cast object of type 'Telerik.Windows.Controls.Gauges.IndicatorList' to type 'Telerik.Windows.Controls.Gauges.IGaugeIndicator'".

Could you please write the right way for doing this?

Thank you

Gauges

answered on 25 Dec 2010

2 answers

311 views

GridView to edit Dictionary

Hi, I'm new to telerik and I would like to ask a question here in the forum.

Basically, I would like to make "Property Editor" using Dictionary and RadGridView.

I'm using Dictionary because all I have is bunch of key/value pairs and entries/definition can frequently change. I thought Dictionary was perfect for this.

The below source code works to bind Dictionary in RadGridView but editing value would not work. Any changes made in RadGridView will not change the values in the Dictionary.
It is obvious that Dictionary doesn't support two-way binding.
I'm was wondering how I can enable Dictionary to edit values.
Is there a trick to do that?

If Dictionary inheritantely does not allow two-way/one-way binding, could you please give a suggestion how I can emulate Dictionary like functionality?

Thank you very much.

-Chris

publicvoid
 ShowEntityProperties(OrderedDictionary propertyDict)
  {
   PropertyGridView.ItemsSource = null;
   PropertyGridView.Items.Clear();
   PropertyGridView.ItemsSource = propertyDict;

  }

GridView

answered on 24 Dec 2010

1 answer

179 views

BINDING TELERIK GRIDVIEW TO DATATABLE

I am able to bind datatable to rad grid view..Is the reverse possible , with directly accepting the changes from rad gridview ?

GridView

answered on 24 Dec 2010

4 answers

85 views

DragDrop Problem in dragging object with collapsed Grid,Canvas,DockPanel..

Hi,
i have a Problem in dragging object with collapsed Grid,Canvas,DockPanel using RadDragDropManager.
I have an user Control like this :

<UserControl>

<StackPanel>

<Grid_1>

<label>

<myUserControl_1>

</Grid>

<Grid_2>

<label>

<myUserControl_2>

</Grid>

   <Grid_3>
    <label>
    <myUserControl_3>
  </Grid>

</Grid>

</StackPanel>

In run time mode i collapse one of these Grid. (for example Grid_2)
When i try to drag onto myUserControl_1 i received OnDrop Event on myUserControl_2.
What's Wrong?
Anyone still get the same problem ?
Thanks.

Bye

DragAndDrop

answered on 24 Dec 2010

4 answers

261 views

Problem Templating RadComboBox

hi!

I would like to template RadComboBox, so I generated a copy of template by using blend, this is template generated:

<ControlTemplate x:Key="RadComboBoxControlTemplate1" TargetType="{x:Type telerik:RadComboBox}">

<Grid x:Name="VisualRoot">

<Border Background="{TemplateBinding Background}" CornerRadius="1" IsHitTestVisible="False"/>

<telerik:RadToggleButton x:Name="PART_DropDownButton" ClickMode="Press" IsTabStop="False" Margin="0" Padding="0">

<telerik:RadToggleButton.Template>

<ControlTemplate TargetType="{x:Type telerik:RadToggleButton}">

<ContentPresenter ContentTemplate="{TemplateBinding ContentTemplate}" Content="{TemplateBinding Content}" ContentStringFormat="{TemplateBinding ContentStringFormat}"/>

</ControlTemplate>

</telerik:RadToggleButton.Template>

<Grid>

<Grid.ColumnDefinitions>

<ColumnDefinition Width="*"/>

<ColumnDefinition Width="Auto"/>

</Grid.ColumnDefinitions>

<Telerik_Windows_Controls_Chromes:ButtonChrome x:Name="ButtonChrome" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Grid.ColumnSpan="2" CornerRadius="1" RenderMouseOver="{TemplateBinding IsMouseOver}" RenderPressed="{TemplateBinding IsDropDownOpen}" RenderFocused="{TemplateBinding IsFocused}" RenderEnabled="{TemplateBinding IsEnabled}">

<telerik:StyleManager.Theme>

<telerik:Office_BlackTheme/>

</telerik:StyleManager.Theme>

</Telerik_Windows_Controls_Chromes:ButtonChrome>

<ContentControl x:Name="DropDownIcon" Background="White" Grid.Column="1" Foreground="Black" IsTabStop="False">

<ContentControl.Template>

<ControlTemplate TargetType="{x:Type ContentControl}">

<Grid Margin="5,0">

<Path x:Name="BackgroundIcon" Data="M0,0L2,0 1,1z" Fill="{TemplateBinding Background}" Height="3" Margin="0,2,0,0" Stretch="Fill" Width="5"/>

<Path x:Name="ForegroundIcon" Data="M0,0L2,0 1,1z" Fill="{TemplateBinding Foreground}" Height="3" Margin="0,1" Stretch="Fill" Width="5"/>

</Grid>

</ControlTemplate>

</ContentControl.Template>

</ContentControl>

<ContentPresenter x:Name="Content" ContentTemplate="{TemplateBinding SelectionBoxItemTemplate}" Content="{TemplateBinding SelectionBoxItem}" Grid.Column="0" HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" IsHitTestVisible="False" Margin="{TemplateBinding Padding}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/>

</Grid>

</telerik:RadToggleButton>

<Popup x:Name="PART_Popup" AllowsTransparency="True" PopupAnimation="{DynamicResource {x:Static SystemParameters.ComboBoxPopupAnimationKey}}">

<Border BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="White" CornerRadius="1" MaxHeight="{TemplateBinding MaxDropDownHeight}" MinWidth="{TemplateBinding MinDropDownWidth}">

<Grid>

<Grid.RowDefinitions>

<RowDefinition Height="Auto"/>

<RowDefinition Height="*"/>

</Grid.RowDefinitions>

<telerik:RadButton x:Name="PART_ClearButton" Content="{TemplateBinding ClearSelectionButtonContent}" Margin="-1,-1,-1,0" Grid.Row="0" Visibility="{TemplateBinding ClearSelectionButtonVisibility}">

<telerik:StyleManager.Theme>

<telerik:Office_BlackTheme/>

</telerik:StyleManager.Theme>

</telerik:RadButton>

<ScrollViewer x:Name="PART_ScrollViewer" BorderThickness="0" CanContentScroll="True" Padding="1,1,1,0" Grid.Row="1" VerticalScrollBarVisibility="Auto">

<telerik:StyleManager.Theme>

<telerik:Office_BlackTheme/>

</telerik:StyleManager.Theme>

<ItemsPresenter/>

</ScrollViewer>

</Grid>

</Border>

</Popup>

</Grid>

<ControlTemplate.Triggers>

<Trigger Property="IsEnabled" Value="False">

<Setter Property="Opacity" TargetName="Content" Value="0.5"/>