Questions on UI for WPF Forum

11 answers

351 views

RadCartesianBarChart show series when click on legend

Hi,

I am using radcartesianbarchart to show multiple bar series. For example if i have category1, category2, and total these are the series collection.

If i click on legent of category1, need to show the category1 series. same for category2. If i click on total it should show all series. How we can achieve this.

Using hover property we can show fadeout of other series. But i need to draw when click on the legend only. Also please advise how to do animation for the chart series.

Thanks,

Arun

Chart

answered on 01 Feb 2016

1 answer

163 views

Binding Dynamically using a RadMenu

Hi,

I'm trying to bind items dynamically to a RadMenu but I only ever see an empty RadMenu despite the fact that binding a standard Menu to the same DataContext property works perfectly fine.

In my screenshots you can see I've tried two approaches but the RadMenu directly under the TitleBar of the Window simply remains blank. I'm adopting the standard approach with ObservableCollections for this and since the standard Menu works, I can't see why the RadMenu doesn't.

I'd be very grateful for any assistance.

M.Young

Menu

answered on 01 Feb 2016

3 answers

1.1K+ views

Keep the ContextMenu open after MenuItem has been clicked?

I've adapted the ContextMenu sample from the sample application where you can set the Visibility for each Column of a RadGridView for my application.
Now it would be nice if the ContextMenu stays open and the user can set the Visiblity of all columns without having to right-click on the header for each single column he wants to show or hide and if the ContextMenu closes when you click outside of it.

Is there a way to do that with RadContextMenu?

Thx

ContextMenu

answered on 01 Feb 2016

1 answer

780 views

How to unsubscribe class handlers?

I need to unsubscribe these events

1. EventManager.RegisterClassHandler(typeof(RadTreeViewItem), Mouse.MouseDownEvent, new MouseButtonEventHandler(OnTreeViewItemMouseDown), false);
2. RegisterClassHandler(typeof(RadTreeView), RadDragAndDropManager.DragInfoEvent, new EventHandler<DragDropEventArgs>(OnTreeViewDragInfo), false);
3. RegisterClassHandler(typeof(RadTreeView), RadDragAndDropManager.DropQueryEvent, new EventHandler<DragDropQueryEventArgs>(OnTreeViewDropQuery), true);

TreeView

answered on 01 Feb 2016

1 answer

168 views

Change the RadialMenu default Button Icon

I've looked around and can't really figure out how to do this. Anyone have any ideas? I just want to change the gear looking image to something like a label. Is this possible?

RadialMenu

answered on 01 Feb 2016

2 answers

162 views

RadTabItem Header Two Way binding not working

I have applied an editable radtabitem header as the following

I can see the editable TextBox set the the initial value for the header I can change it , but the Header Property it self still the same , so please what is wrong here?

<Style TargetType="{x:Type socialtracker:EditableTabHeaderControl}">

<Setter Property="Template">

<Setter.Value>

<ControlTemplate TargetType="{x:Type socialtracker:EditableTabHeaderControl}">

<Grid>

<Grid.Triggers>

<EventTrigger RoutedEvent="Grid.DragEnter">

<BeginStoryboard x:Name="GridBeginStoryboard">

<Storyboard>

<DoubleAnimation Storyboard.TargetName="ButtonTransform" Storyboard.TargetProperty="ScaleX" Duration="0:0:0.5" From="1" To="1.1"/>

<DoubleAnimation Storyboard.TargetName="ButtonTransform" Storyboard.TargetProperty="ScaleY" Duration="0:0:0.5" From="1" To="1.1"/>

</Storyboard>

</BeginStoryboard>

</EventTrigger>

<EventTrigger RoutedEvent="Grid.DragLeave">

<StopStoryboard BeginStoryboardName="GridBeginStoryboard"/>

</EventTrigger>

<EventTrigger RoutedEvent="Grid.Drop">

<StopStoryboard BeginStoryboardName="GridBeginStoryboard"/>

</EventTrigger>

</Grid.Triggers>

<TextBox x:Name="PART_EditArea"

Text="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=Content, Mode=TwoWay}"

Visibility="Collapsed" />

<ContentPresenter x:Name="ContentPresenter"

Content="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=Content, Mode=TwoWay}" />

</Grid>

<ControlTemplate.Triggers>

<Trigger Property="IsInEditMode" Value="True">

<Trigger.Setters>

<Setter TargetName="PART_EditArea" Property="Visibility" Value="Visible" />

<Setter TargetName="ContentPresenter" Property="Visibility" Value="Collapsed" />

</Trigger.Setters>

</Trigger>

</ControlTemplate.Triggers>

</ControlTemplate>

</Setter.Value>

</Setter>

</Style>

Binding binding = new Binding

{

Path = new PropertyPath("."),

Mode = BindingMode.TwoWay,

};

var editableTabHeaderControl = new FrameworkElementFactory(typeof(EditableTabHeaderControl));

editableTabHeaderControl.SetBinding(EditableTabHeaderControl.ContentProperty, binding);

DataTemplate newDataTemplate = new DataTemplate() { VisualTree = editableTabHeaderControl, };

RadTabItem item = new RadTabItem

{

Tag = new ObservableCollection<Tweet>(),

Name = "SelectedPrint" + _intSelectedPrintTabsCount.ToString(),

Header = " New Tab " + _intSelectedPrintTabsCount.ToString(),

HeaderTemplate = newDataTemplate

};

tbSearchAndFOllow.Items.Insert(tbSearchAndFOllow.Items.Count - 1, (item));

TabControl

answered on 31 Jan 2016

1 answer

231 views

Alignment within aggregated column footer

Hello,

I have added a footer to my gridview using the SumFunction. The content of all regular cells is aligned right (numeric values) but I cannot change the alignment of the result in the footer. Everything placed in the footer is rendered with minimal width and ignoring the width of the column, therefor all alignment settings are ignored.

Any advices how to align the content in the footer?

Thanks in advance.

GridView

answered on 29 Jan 2016

1 answer

91 views

Grouping aggregation issue in dynamic columns

I am trying to create dynamic columns by creating column header and assigning the list of string values based on the index to the column databinding and while i am trying to add aggregation to the columns i am facing runtime issue as mentioned below.

"No generic method 'Sum' on type 'System.Linq.Enumerable' is compatible with the supplied type arguments and arguments. No type arguments should be provided if the method is non-generic."

I am unable to resolve this issue after number of workarounds.

Kindly provide me a solution ASAP.

Regards,

Karthikeyan R

GridView

answered on 29 Jan 2016

1 answer

115 views

Cartesian Chart - how to select an item with the 0 value?

Hi *,

I try to use the selection changed Event for the cartesian Chart to notify another view.

It works fine but I recognized that there is no possibility to select an item with the null value (see attached Picture).

Any ideas?

Thx

Rostislaw

ChartView

answered on 29 Jan 2016

1 answer

329 views

Sort item as another data from itemssource

I have a radlistbox which has images, title and createddate of them. I showed images and title but i don't know what this listbox sort by. How can i sort listbox by createddate?

Something likes

<telerik:RadGridView.SortDescriptors>
<telerik:SortDescriptor Member="DateCreate" SortDirection="Ascending" />
</telerik:RadGridView.SortDescriptors>

of gridview.

Such as 'example.png', ListBox shows image and title, I want it to sort by created date.

ListBox