Questions on UI for WPF Forum

2 answers

127 views

I want to draw a 2D Pie, where the first "pie element" shall start at "12 o'clock" (not at 3 o'clock as default), and the folowing elements adds in clockwise order.

I also need the selected "pie element" to "pop out" when I select it by clicking on the pie, or selecting by code. How do I code this in C#?

I have 2010 Q2

Chart

answered on 22 Jul 2010

1 answer

75 views

Where to get spring zoom timer value?

Is there a way to get the timer value used by the spring zoom animation?
I have a dependency property linked to the zoom level and would like to animation between the new zoom level and old level to have the same duration.
Regards
Frederic

Map

answered on 22 Jul 2010

1 answer

92 views

How to get rid of 'spring' panning?

Using the latest WPF RadMap version (Q2 2010), I noticed that smooth zooming has been added (looks very good).
However, there is an unfortunate side effect on panning (it "lags").
Is there a property to control the spring effect on panning (e.g. turn it off)?
The UseSpringAnimations property turns both smooth zooming *and* panning on/off.
Regards
Frederic

Map

answered on 22 Jul 2010

1 answer

87 views

Simple Column Translation - Code to Text

Hi

This is trivial stuff but I can't find an answer in all your resources.

I have a database field containing an integer code e.g. Priority with 0 for High, 1 for Medium and 2 for Low.
The codes mean nothing to the user so I need to translate the code in this column into text. Also, when sorting the column I'd like it to use the underlying code and not the text so the ordered data appears as High-Medium-Low not text sorting which would give High-Low-Medium.

If you can provide some tips on searching your resources for this easy stuff that would be appreciated! A beginners guide maybe

Thanks
RoyS

GridView

answered on 22 Jul 2010

1 answer

140 views

Bind items from a gridview after a transformation

Hi,

On a page, I have a gridview which shows data which come from a binding to a collection of a class A.

What I want to do is to get the currently showed items on the grid view, transform the items into new items of a class B and bind the new item collection of the class B to a pie chart.

To do that, the only solution I could see was to use a converter.
What I've done compile fine, but when I run the application, the pie chart is empty whereas the grid view contains elements.

Here is the XAML code with the mapping on ItemsSource :

<telerikGrid:RadGridView x:Name="GridView"></telerikGrid:RadGridView>

<telerikChart:RadChart ItemsSource="{Binding ElementName=GridView,Path=Items,Converter={StaticResource Converter}}">

<telerikChart:RadChart.SeriesMappings>

<telerikCharting:SeriesMapping>

<telerikCharting:SeriesMapping.SeriesDefinition>

<telerikCharting:Pie3DSeriesDefinition/>

</telerikCharting:SeriesMapping.SeriesDefinition>

<telerikCharting:SeriesMapping.ItemMappings>

<telerikCharting:ItemMapping DataPointMember="LegendLabel" FieldName="Key" />

<telerikCharting:ItemMapping DataPointMember="YValue" FieldName="Value" />

</telerikCharting:SeriesMapping.ItemMappings>

</telerikCharting:SeriesMapping>

</telerikChart:RadChart.SeriesMappings>

<telerikChart:RadChart.DefaultView>

<telerikCharting:ChartDefaultView>

<telerikCharting:ChartDefaultView.ChartArea>

<telerikCharting:ChartArea LegendName="chartLegend">

</telerikCharting:ChartArea>

</telerikCharting:ChartDefaultView.ChartArea>

<telerikCharting:ChartDefaultView.ChartLegend>

<telerikCharting:ChartLegend x:Name="chartLegend" UseAutoGeneratedItems="True" />

</telerikCharting:ChartDefaultView.ChartLegend>

</telerikCharting:ChartDefaultView>

</telerikChart:RadChart.DefaultView>

</telerikChart:RadChart>

And here is the converter code :

[ValueConversion(typeof(DataItemCollection), typeof(ObservableCollection<KeyValuePair<string, int>>))]

public class Converter : IValueConverter

{

public object Convert(object value, Type targetType, object parameter, CultureInfo culture)

{

ObservableCollection<KeyValuePair<string, int>> convertedItems = new ObservableCollection<KeyValuePair<string, int>>();

DataItemCollection dataItemCollection = (DataItemCollection)value;

if (dataItemCollection.ItemCount > 0)

{

// I put here transformed elements in the collection convertedItems.

}

return convertedItems;

}

public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)

{

throw new NotImplementedException();

}

In debug mode, when I look at dataItemCollection, it's empty !
So, converter can be use is that case ?
If not, how can I do it ?

Thanks.

Chart

answered on 22 Jul 2010

3 answers

392 views

Cell Edit Template and Default Template

Hello,

At the last release i have some problems with cell edit template. If i use my own cell edit template(first code block) the "tab" and "enter" buttons does not make the cell editable. It only focuses on the cell.
But if i don't make an edit template there is no such problem.(second code block)
Also at the cell edit template i need to make double click to go in edit mode. But at default only one click.

P.S : If i use the keyboard up/down arrows to change the value there is no problem. The problem is i can not enter numbers from the keyboad

<telerik:GridViewDataColumn TextAlignment="Right" Header="Fatura Fiyatı" IsReadOnly="False" DataMemberBinding="{Binding IncomingBrutPrice}" DataFormatString="{}{0:F4}">

<telerik:GridViewDataColumn.CellEditTemplate>

<DataTemplate>

<telerik:RadNumericUpDown Name="NumericBrutPrice" Value="{Binding Path=IncomingBrutPrice, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" ValueChanged="NumericBrutPrice_ValueChanged"></telerik:RadNumericUpDown>

</DataTemplate>

</telerik:GridViewDataColumn.CellEditTemplate>

</telerik:GridViewDataColumn>

<telerik:GridViewDataColumn IsGroupable="False" DataMemberBinding="{Binding ItemTotalPrice}" Header="Toplam Fiyat" Width="100" DataFormatString="{}{0:f4}">

</telerik:GridViewDataColumn>

GridView

answered on 22 Jul 2010

1 answer

91 views

TreeViewList - ItemTemplateSelector

We have recently bought the licence of the Telerik controls and I am trying to use the TreeListView. Is there a way to use a template selector to bind different collection of data?

Thanks
Kiran

TreeListView

answered on 22 Jul 2010

10 answers

427 views

Text Formatting

I am trying to use the NumericUpDown but I need to format the displayed value so as to not show anything after the decimal, i.e. I want whole numbers only. I cannot seem to find a text format property, so how can I achieve this?

Thanks,

blair

NumericUpDown

answered on 22 Jul 2010

1 answer

38 views

Date cannot be selected issue in build 2010.2.0714.35?

I used DatePicker control (version 2010.1.422.35) in my project and everything worked fine. And yesterday I updated the dlls to version 2010.2.0714.35, and then I found the datepicker cannot pick up a date.

Is this a know issue? or besides updating the dlls and the reference path in my projects, there is something else I need to update to make datepicker work correctly?

Thanks,
Yang Lu

DatePicker

answered on 22 Jul 2010

2 answers

156 views

Hide a floating pane

I have a RadPane set to floatingdocked. I do not wish to display this pane when the application loads.
I wish to display this only when certain event is fired.
I tried to set the visibility to hidden on SplitContainer as well as RadPanegroup but it is still visible

Docking

answered on 22 Jul 2010