Questions on UI for WPF Forum

4 answers

138 views

Hello,

I'm using a RadDataFilter with a RadTreeListView and I'm seeing long stalls/loading times when creating or modifying filters.

The data is hierarchical and whenever a filter is added to the control, all the items are expanded. Modifying the criterion for the filter also takes forever once focus is gone out of the text block.

If it helps, I'm binding the Source property of my DataFilter to the Items property of the RadTreeListView, and the list view has its ItemsSource set to an observable collection of items.
The list doesn't have that many items in it, even a small list takes some time. (100+ items).

Are you guys aware of this performance issue?

Thanks
--
Matt

DataFilter

answered on 14 Feb 2011

1 answer

112 views

Create Native Image?

It is my 3rd year of Telerik subscription. There were moments in early days when I questioned myself whether to use Telerik or not. Mostly because it required too much resources and too slow. We know it is not the case any more.

Although I am no longer using Telerik WinForms, it is unbelievably fast!
I suspect it is mainly because it creates native images during the installation. Is it?

I wonder if you guys have any plan to do the same for other packages such as WPF and Silverlight.
I've tried to use NGEN.exe to do it myself to no avail, probably because I had other 3rd party libraries as well. In the meantime, can any of you provide a simple tutorial or something like that?
I'd really appreciate it.

Thanks,

General Discussions

answered on 14 Feb 2011

3 answers

215 views

[Solved] Custom MapPinPoints

Hello,
I´ve some PinPoints that are represented by a png image. I´d like to draw a number in the middle of the image. If I use the property Text of the MapPinPoint the text is drawn on the right side of the image.
Is there any simple way of doing that?
Thank you very much,
Esther

Map

answered on 14 Feb 2011

1 answer

146 views

Load layout from XML file

When I load the layout of Docks from the saved xml file, the data is not loaded.
How to make sure that the data is also loaded when I load layout

Docking

answered on 14 Feb 2011

1 answer

219 views

Change Chart Type

Hi - I have a chart defined in XAML that is bound to an observable collection. The chart is defined as a line chart. I would like to make the chart type to be selectable, such as being able to change the chart from a line chart to a bar chart while keeping the data bindings. I have been trying to accomplish this by changing the series mappings and series definitions in the code behind, but seem to lose the data binding when the new chart is drawn. How is this accomplished ?

Thanks
Rich

<Controls:RadChart x:Name="evntChart" Height="150" Width="700"

Visibility="{Binding ChartVisible, Mode=TwoWay}"

ItemsSource="{Binding ChartItems}" >

<Controls:RadChart.SeriesMappings>

<Charting:SeriesMapping LegendLabel="Event Log Errors ">

<Charting:SeriesMapping.SeriesDefinition>

<Charting:LineSeriesDefinition />

</Charting:SeriesMapping.SeriesDefinition>

<Charting:SeriesMapping.ItemMappings>

<Charting:ItemMapping DataPointMember="XValue" FieldName="ChartDate" />

<Charting:ItemMapping DataPointMember="YValue" FieldName="EventCount" />

</Charting:SeriesMapping.ItemMappings>

</Charting:SeriesMapping>

</Controls:RadChart.SeriesMappings>

<Controls:RadChart.DefaultView>

<Charting:ChartDefaultView>

<Charting:ChartDefaultView.ChartLegend>

<Charting:ChartLegend x:Name="chartLegend" Header="Selected Event Log Errors" UseAutoGeneratedItems="True" />

</Charting:ChartDefaultView.ChartLegend>

<Charting:ChartDefaultView.ChartArea >

<Charting:ChartArea LegendName="chartLegend"

EnableAnimations="False"

TransitionControlStyle="{StaticResource TransitionControlStyle}">

<Charting:ChartArea.AxisX>

<Charting:AxisX DefaultLabelFormat="dd-MMM" LabelRotationAngle="45">

</Charting:AxisX>

</Charting:ChartArea.AxisX>

</Charting:ChartArea>

</Charting:ChartDefaultView.ChartArea>

</Charting:ChartDefaultView>

</Controls:RadChart.DefaultView>

</Controls:RadChart>

Chart

answered on 14 Feb 2011

1 answer

161 views

GridView fill available screen height and width

I want to make sure a grid does not display past the available height of the screen? How do I do that?

GridView

answered on 14 Feb 2011

1 answer

100 views

WPF GridviewDataTemplate

Hi,

how can i write the grid view data template using c# code

<telerikGrid:GridViewDataColumn >
   <telerikGrid:GridViewDataColumn.Header>
   <telerik:RadToggleButton Width="65" Height="50"
HorizontalContentAlignment="Center"
VerticalContentAlignment="Center">
   <telerik:RadToggleButton.Content>
   <Image Source="/Images/GreenCheck.png" Height="55" Width="65" />
   </telerik:RadToggleButton.Content>
   </telerik:RadToggleButton>
   </telerikGrid:GridViewDataColumn.Header>
   </telerikGrid:GridViewDataColumn>

thanks
sarag

GridView