Questions on UI for WPF Forum

4 answers

558 views

[Solved] Different color for each bar

I followed this Binding the Color Series-Items

However I can't get the different colors for the bars by using telerik:RadCartesianChart. Please advise me.

<telerik:BarSeries CategoryBinding="Category" ValueBinding="Value" ItemsSource="{Binding}">

<telerik:BarSeries.PointTemplate>

<DataTemplate>

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

</DataTemplate>

</telerik:BarSeries.PointTemplate>

</telerik:BarSeries>

ChartView

answered on 10 Nov 2017

2 answers

123 views

Non Tab initial layout for DocumentHost

Hi!

I'm adding panes dynamically to a RadSplitPanel inside DocumentHost. I would like to layout them (after added) in dock like style (non tab) how can I achieve that in code or XAML ?

Thanks,

Vladimir

Docking

answered on 09 Nov 2017

2 answers

132 views

RadChartView Inside TabControl Content Template

I am building an application that will have an unknown number of tabs. Inside each tab is a chart with two data sets. I can get the dynamically created tabs working. I can also get the chart working outside of the tab control, but when I combine them, the chart area just says No Data points. It should be noted that I am following the MVVM pattern, so there is no code behind for the view. Everything is done with databinding in the xaml. The data to which I am binding is an observable collection with an observable collection inside it. Here is the view xaml.

<Grid>

<TabControl ItemsSource="{Binding TotalGradeProfile}">

<TabControl.ItemTemplate>

<DataTemplate>

<TextBlock Text="{Binding Name}"/>

</DataTemplate>

</TabControl.ItemTemplate>

<TabControl.ContentTemplate>

<DataTemplate>

<telerik:RadCartesianChart x:Name="chart"

Palette="Summer">

<telerik:RadCartesianChart.HorizontalAxis>

<telerik:LinearAxis/>

</telerik:RadCartesianChart.HorizontalAxis>

<telerik:RadCartesianChart.VerticalAxis>

<telerik:LinearAxis HorizontalAlignment="Right"></telerik:LinearAxis>

</telerik:RadCartesianChart.VerticalAxis>

<telerik:RadCartesianChart.SeriesProvider>

<telerik:ChartSeriesProvider Source="{Binding GradeProfiles}">

<telerik:ChartSeriesProvider.SeriesDescriptors>

<telerik:ScatterSeriesDescriptor XValuePath="Mp"

YValuePath="RegionGrade">

<telerik:ScatterSeriesDescriptor.Style>

<Style TargetType="telerik:ScatterLineSeries">

<Setter Property="StrokeThickness" Value="2"/>

</Style>

</telerik:ScatterSeriesDescriptor.Style>

</telerik:ScatterSeriesDescriptor>

</telerik:ChartSeriesProvider.SeriesDescriptors>

</telerik:ChartSeriesProvider>

</telerik:RadCartesianChart.SeriesProvider>

</telerik:RadCartesianChart>

</DataTemplate>

</TabControl.ContentTemplate>

</TabControl>

</Grid>

Chart

answered on 09 Nov 2017

2 answers

413 views

Listbox databinding selectedItem

Hello,
I am struggling with listboxes, with something looks quite simple :
<telerik:RadListBox SelectionMode="Single" x:Name="radListBox" ItemsSource="{Binding Tasks}" SelectedItem="{Binding SelectedPlcTemplate.Task, Mode=TwoWay}" DisplayMemberPath="Name" />

In my ViewModel:

public ObservableCollection<PlcTask> Tasks
{
get { return PlcTask.GetAll(); }
}

In my model:

private PlcTask _task;
public PlcTask Task
{
get
{
return _task;
}
set
{
_task = value;
RaisePropertyChanged(() => Task);
}
}

The listbox never updates its value, even if the model is correctlyt updated

ListBox

answered on 09 Nov 2017

1 answer

259 views

WrapPanel as container of subitems of expanded node

Hi -
I am trying to implement treeview that will have multiple expandable 1st level nodes. When one of the 1st level nodes is expanded, subitems of that node (they should not be expandable) should be displayed as a grid. I tried with setting Wrap panel for ItemsPanel, but in that case virtualization stops working.

<Style TargetType="telerik:RadTreeViewItem" x:Key="RadTreeViewItemStyle">

<Setter Property="FocusVisualStyle" Value="{x:Null}"/>

<Setter Property="HorizontalContentAlignment" Value="Left"/>

<Setter Property="VerticalContentAlignment" Value="Center"/>

<Setter Property="BorderThickness" Value="1"/>

<Setter Property="Padding" Value="1 4 5 4"/>

<Setter Property="MinHeight" Value="24"/>

<Setter Property="IsDropAllowed" Value="True"/>

<Setter Property="IsEnabled" Value="True"/>

<Setter Property="IsTabStop" Value="False"/>

<Setter Property="KeyboardNavigation.TabNavigation" Value="Local"/>

<Setter Property="Template" Value="{StaticResource TreeViewItemDefaultTemplate}"/>

<Setter Property="ItemsPanel">

<Setter.Value>

<ItemsPanelTemplate>

<WrapPanel Orientation="Horizontal" VerticalAlignment="Bottom"/>

</ItemsPanelTemplate>

</Setter.Value>

</Setter>

</Style>

When I set telerik:TreeViewPanel for ItemPanel, virtualization is working, but subitems of nodes are shown in a vertical list?

Is there any way to achieve that behavior, so subitems are shown in wrap panel, but to keep virtualization working?

Thanks in advance!

TreeView

answered on 09 Nov 2017

4 answers

401 views

Disabling the formula functionalities

Hello,

I was looking for a way to disable the formula capabilities of the control is this possible?(e.g =SUM(A+B)).
This without the need to disable the cells.

Kind regards,

Thomas,

Spreadsheet

answered on 09 Nov 2017

1 answer

116 views

RadMap.LocationRect Missing?

I see references to RadMap.LocationRect in past forum posts, but am unable to find the current lat/long bounds of the map view. I must be missing something easy.

Map

answered on 08 Nov 2017

3 answers

519 views

Change each Bar color in RadCartesianChart

Hi,

I am creating a RadCartesianChart and adding bar series this way:

chartSafety.VerticalAxis = new LinearAxis();

chartSafety.HorizontalAxis = new CategoricalAxis();

DataTable dtSafety = new DataTable("DATA");

dtSafety.Columns.Add(new DataColumn("Name", typeof(string)));

dtSafety.Columns.Add(new DataColumn("ValueBar", typeof(double)));

dtSafety.Rows.Add(new object[] { "Value1", 70 });

dtSafety.Rows.Add(new object[] { "Value2", 15 });

dtSafety.Rows.Add(new object[] { "Value3", 34 });

dtSafety.Rows.Add(new object[] { "Value4", 87 });

dtSafety.Rows.Add(new object[] { "Value5", 45 });

dtSafety.Rows.Add(new object[] { "Value6", 22 });

dtSafety.Rows.Add(new object[] { "Value7", 33 });

dtSafety.Rows.Add(new object[] { "Value8", 65 });

dtSafety.Rows.Add(new object[] { "Value9", 19 });

dtSafety.Rows.Add(new object[] { "Value10", 41 });

BarSeries barSer = new BarSeries();

foreach (DataRow drSafety in dtSafety.Rows)

{

barSer.DataPoints.Add(new CategoricalDataPoint() { Category = drSafety["Name"], Label = string.Format("{0:N}", drSafety["ValueBar"]), Value = double.Parse(drSafety["ValueBar"].ToString()) });

}

chartSafety.Series.Clear();

chartSafety.Series.Add(barSer);

Is there a way to change the color for each bar in the series while I am creating each data point?

Regards,

Alberto

Chart

answered on 08 Nov 2017

3 answers

236 views

[Solved] AnnotationsProvider's problem...

Hi. I was trying to run example code about 'AnnotationsProvider' feature from here:

https://github.com/telerik/xaml-sdk/tree/master/ChartView/WPF/AnnotationsProvider

However, it seems to me that it doesn't working as was supposed. Neither 'AnnotationDescriptor' or 'AnnotationDescriptorSelector' user control are not working properly (I had not seen any annotations at all). Only 'AnnotationCreated' user control drew the annotations by using code-behind event handler. What am i doing wrong?

My current Telerik libraries version is 2017.2.503.4

ChartView