Questions on UI for WPF Forum

2 answers

122 views

Accessing the NavigationItemButton for a certain RadRadialMenuItem

Hi!

Is there any way to access the NavigationItemButton associated to a certain RadRadialMenuItem? I would like to show the submenus in case that the parent menuitem is clicked, therefore I need exactly the same behaviour for my menuitem as the NavigationItemButton offers.

It would be great if this would be possible in XAML only.

Thanks in advance.

RadialMenu

answered on 16 Mar 2016

1 answer

161 views

Binding the colour to BarSeries using ChartDataSource

Hi,

I've followed the example here to colour each point of my BarSeries, but I can't make it work. Instead, all the points have turned invisible. The only difference I've noticied between my code and the example is that I use a ChartDataSource object as my points' source, instead of directly binding my collection to the property ItemsSource.

This is my relevant code:

<telerik:ChartDataSource Grid.Column="1" x:Name="VolumeChartDataSource" ItemsSource="{Binding VolumeSerie}" />

Then, on the series definition:

<telerik:RadCartesianChart.Series>

<telerik:BarSeries x:Name="VolumeS" ItemsSource="{Binding ElementName=VolumeChartDataSource}" ValueBinding="Y" CategoryBinding="X">

<telerik:BarSeries.RenderOptions>

<telerik:Direct2DRenderOptions />

</telerik:BarSeries.RenderOptions>

<telerik:BarSeries.PointTemplate>

<DataTemplate>

<Rectangle Fill="{Binding Path=DataItem.Color}" />

</DataTemplate>

</telerik:BarSeries.PointTemplate>

</telerik:BarSeries>

</telerik:RadCartesianChart.Series>

The datapoint class inside VolumeSerie has the properties X, Y and Color, all already set.

Am I missing something?

Thanks,

Jonathan.

ChartView

answered on 16 Mar 2016

2 answers

244 views

AutoCompleteBox TextBoxStyle

Hi,

when I override the TextBoxStyle of the RadAutoCompleteBox with my own styledTextBox (according to this suggestion), it results in wired behavior. When I enter the first character the SearchText binding fires twice with empty string. All following keyboard hits trigger the binding once but still with an empty string. The control however displays all entered characters except the first one.

Here's the custom style:

<Style x:Key="customStyle" TargetType="telerik:RadWatermarkTextBox">

<Setter Property="Template">

<Setter.Value>

<ControlTemplate TargetType="telerik:RadWatermarkTextBox">

<TextBox Text="{Binding SearchText, RelativeSource={RelativeSource AncestorType=telerik:RadAutoCompleteBox}, Mode=TwoWay}" />

</ControlTemplate>

</Setter.Value>

</Setter>

</Style>

and the control itself:

<telerik:RadAutoCompleteBox

ItemsSource="{Binding CustomerSearchProvider}"

SelectedItem="{Binding CustomerSearchProvider.Selected, Mode=TwoWay}"

SearchText="{Binding CustomerSearchProvider.SearchTerm, Mode=TwoWay}"

IsDropDownOpen="{Binding CustomerSearchProvider.IsCompleted}"

DisplayMemberPath="DisplayName"

TextSearchMode="Contains"

SelectionMode="Single"

TextBoxStyle="{StaticResource customStyle}">

When I remove the TextBoxStyle, everything works as expected.

Thanks

Matthias

AutoCompleteBox

answered on 16 Mar 2016

1 answer

210 views

RadRibbonGroup Template Only Fills Group's Tray (MVVM, Caliburn)

Hello,

I'm trying to implement a set of ribbon tabs and contextual tab groups with a SOLID design. Using Caliburn.Micro, I'm hoping to later develop new RadRibbonGroup views and view models by defining them independently of each other and their parent tabs.

So far, things are going well. However, the way in which I have been able to achieve this means that the entire contents of my RadRibbonGroups are displayed in what looks to the the tray of a RadRibbonGroup object that the Telerik library seems to be wrapping around my DataTemplate.

Here's how I'm pulling the data from my ViewModels into my views.

<UserControl.Resources>

<DataTemplate x:Key="RibbonGroupDataTemplate">

<ContentControl cm:View.Model="{Binding}" />

</DataTemplate>

<Style TargetType="t:RadRibbonContextualGroup">

<Setter Property="Header" Value="{Binding Header, Mode=OneTime}" />

<Setter Property="t:RadRibbonContextualGroup.GroupName" Value="{Binding GroupName, Mode=OneTime}" />

<Setter Property="IsActive" Value="{Binding IsActive, Mode=OneWay}" />

<Setter Property="Color" Value="{Binding Color, Mode=OneTime}" />

</Style>

<Style TargetType="t:RadRibbonTab">

<Setter Property="Header" Value="{Binding Header}" />

<Setter Property="ContextualGroupName" Value="{Binding ContextualGroupName}" />

<Setter Property="ItemsSource" Value="{Binding Groups}" />

<Setter Property="ItemTemplate" Value="{StaticResource RibbonGroupDataTemplate}" />

</Style>

</UserControl.Resources>

<t:RadRibbonView

ItemsSource="{Binding Tabs}"

ContextualGroupsItemsSource="{Binding ContextualGroups}"

ApplicationButtonVisibility="Visible"

TitleBarVisibility="Collapsed"

MinimizeButtonVisibility="Visible"

IsMinimizable="True"

IsMinimized="False">

Attached are a couple screenshots of what I mean. One of them is from viewing the resulting tree in snoop. The highlighted Tray can be seen to contain the RibbonRadGroup view that was located by Caliburn through the "RibbonGroupDataTemplate" data template.

Thank you in advance for your help.

RibbonView and RibbonWindow

answered on 15 Mar 2016

2 answers

71 views

Custom column with Outlook style category colors

Hello,

I am working on an simple email viewer using the Office 365 API.

I want to make the categories that are assigned to the different emails visible in the GridView in which I show my emails, using the same approach that is used in Outlook.

So a small rectangle with the color of the category followed by the name of the category, an email can have multiple categories in my case.

I want to use a single column to show all categories the email is assigned to.

I tryed finding any example but couldnt find it in the XDK samples or the Demo application of the Telerik WPF controls.

Looking for a code example or some guidance to accomplish this.

Thanks in advance,

Marcel

GridView

answered on 15 Mar 2016

1 answer

59 views

Display bug with comments

I would like to report a bug that I have found relating to adding comments to an RTF document. This is reproducible using the latest Telerik UI for WPF demos (Q1 2016 SP1).

To reproduce:

Open the latest Telerik UI for WPF demo application & switch to the "Telerik Editor" demo for RichTextBox.
Delete all content from the document.
Switch to the Web Layout view.
Insert a single line of text into the document (ex. "test"), with no newlines.
Highlight the line, switch to the Review tab & select the "New Comment" menu option. The comment box will show up as a smaller than expected box, and if you try to type text into it you will only see the top of the text (see comment_1.png)
If you add a new line to the document, or switch the editor to print view the comment will display normally (see comment_2.png).

RichTextBox

answered on 15 Mar 2016

4 answers

134 views

CALCULATED FIELDS

I have created a class for calculated fields and all works as expected. However where I am having a problem is where I am using something OTHER than a field that is 'summed'. For example I have a column called "Fill Price" which is the total of a x number of fill prices on stock trades. In the pivot grid I want to show the Average Fill Price so I select the option "Average" as the calculation option in the Field List. Again this gives me the desired answer in this column in the pivot grid, however when I go to use that field (Fill Price) in the calculated field it gives me the Total and NOT the Average. The following code is how I get the field in my concrete class for the calculated field however in this case the value in the field titled dbl is the Total fill Price and not the average as I was expecting. How do I get at the Average value?

Thank you

AggregateValue agg = aggregateValues.GetAggregateValue("fill Price");

double dbl = agg.ConvertOrDefault<double>();

PivotGrid

answered on 15 Mar 2016

3 answers

283 views

InputKeyBinding Issue

We are using Prism 4.0 and MVVM pattern

When we try to work with Enter key on RadTreeView Item, it does not invoke the ItemOpenCommand.

Below code doesn't register ItemOpenCommand command

<TelerikPresentation:RadTreeView.InputBindings>

<KeyBinding Key="Enter" Command="{Binding ItemOpenCommand}"

CommandParameter="{Binding SelectedItem, ElementName=tvMessageSectors}"

/> </TelerikPresentation:RadTreeView.InputBindings>

TreeView

answered on 15 Mar 2016

1 answer

85 views

Gannt Calendar/Schedule View

Good morning Telerik,

I am looking for advice on how to accomplish something.

I am working on an app that will allow separated parents to easily plot out who has their children and when. I am wanting to use Telerik's controls to visually display display something that looks like a combination between a Gannt view and a calendar. Do you have any suggestions on how I might go about that?

Thanks!

GanttView

answered on 15 Mar 2016

8 answers

456 views

How do you persist between launching's of a WPF app?

We meet again! I've been figuring stuff out on my own pretty well for a few weeks without having to make any posts, but I'm stuck again...doh!

So I've seen the WPF demo app that shows how to use a PersistenceManager to save and load using a Stream. The demo works well, I have no issues with it...however I modified it to do the saving and loading during the Loaded and Unloaded events, and when this line of code is executed, it throws a NullReferenceException...

this.stream.Position = 0L;

Which isn't shocking since I do not see anywhere that the Stream object is instantiated except when executing the line...

this.stream = manager.Save(this.gridView);

So...I'm getting the feeling that a PersistenceManger object wasn't intended to be used between launches of an app...or am I just not understanding something here?

adfad

PersistenceFramework

answered on 14 Mar 2016