We're considering using the ChartView or the Chart for our data analysis application. Our analysts often analyze large data sets and they need the scatter chart to be able to render upwards of 10,000 points in a quick manner. What our tests are showing, is that when you bind big data and render 10K points, performance suffers greatly. We have a need to template the points to have varying sizes and colors. We've found that when rendering large data sets AND applying color and size to the points, it takes several seconds to render the chart. What can be done about the rendering performance of this chart? If needed, I can send a sample solution to demonstrate the poor performance.

EDIT: I should also add that whatever solution is needed to speed the rendering of large data in this ChartView also needs to work in Silverlight, as this is going in to a multi-targeted application. This would eliminate the use of DrawingVisuals from the item data template from the overall solution.

Thanks in advance.

Hi,

is there a know problem with the RadRichTextStatusBar + SelectedLayoutMode?
i tried:
This cause an error:
NullReferenceException in StatusBar!

Is it not possible to set this Option in xaml or c#? Without this Option the Editor and StatusBar is working great!
Thanks
Regrads
Rene

Hello,

I'm experiencing performance issues with the RadRichTextBox.  The control is generally unresponsive and typing lags.  It can literally take minutes for a typed sentence to display.

Here's some information that may help:

I'm running this on a pretty beefy machine.
Windows 7 Enterprise (Service Pack 1) 64 bit
Dell Precision WorkStation T3500
Intel Xeon CPU @ 3.20 GHz
12 GBs of RAM

This happens in the "Telerik radControls for WPF Q1 2012 SP1" demo application.  It's most noticeable on the default RadRichTextBox demo (in the Over View category).  The Data Binding RadRichTextBox example is responsive and works pretty well.

I've tried uninstalling and re-installing the demo;  This did not speed up performance.  These performance issues are also present in a custom test application that uses the control.  It's notable my co-worker (with an almost identical setup) does not experience this.

Please advise.

Thanks! 

I am using the RadGridView to simulate a ListBox because I want Delete functionality that isn't built into the RadListBox.
I've removed the headers, the RowIndicator, and I only have one column, but there's still a GridSplitter on the left side of the control. (See attached screenshot.) How can I get rid of this?

Here's my control XAML. I'm using Version 2012.2.607.40.

Thanks!

                <telerik:RadGridView Grid.Row="1"
                                     Margin="0,5,0,0"
                                     AllowDrop="False"
                                     SelectionMode="Extended"
                                     ShowGroupPanel="False"
                                     ShowColumnHeaders="False"
                                     ShowColumnFooters="False"
                                     ShowInsertRow="False"
                                     CanUserInsertRows="False"
                                     CanUserDeleteRows="True"
                                     ColumnWidth="*"
                                     CanUserResizeColumns="False"
                                     EditTriggers="None"
                                     RowDetailsVisibilityMode="Collapsed"
                                     RowIndicatorVisibility="Collapsed"
                                     AutoGenerateColumns="False"
                                     ItemsSource="{Binding Words}"
                                     MouseDoubleClick="wordList_MouseDoubleClick"
                                     Deleted="wordList_Deleted"
                                     Deleting="wordList_Deleting">
                    <telerik:RadGridView.Columns>
                        <telerik:GridViewDataColumn DataMemberBinding="{Binding Phrase}" Width="*">
                            <telerik:GridViewDataColumn.CellTemplate>
                                <DataTemplate>
                                    <Grid>
                                        <ContentControl Content="{Binding}"
                                                        ContentTemplate="{StaticResource WordDataTemplate}"/>
                                    </Grid>
                                </DataTemplate>
                            </telerik:GridViewDataColumn.CellTemplate>
                        </telerik:GridViewDataColumn>
                    </telerik:RadGridView.Columns>
                    <telerik:RadGridView.SortDescriptors>
                        <telerik:ColumnSortDescriptor Column="{Binding Columns[\Phrase\], ElementName=wordList}" 
                                                            SortDirection="Ascending" />
                    </telerik:RadGridView.SortDescriptors>
                </telerik:RadGridView>

Hi,

I have a requirement whereby I will be using the TileView control to show order entry forms.  It will initially be blank and as users click on the, say "Create Order" button a new order/tile will be added to the collection.
 
1.  When a new order/tile is created it should default and replace the existing maximized tile
2. The tiles should display different levels of data depending on their current view.

I think I have cracked part 1 of the requirement.  I seem to be having problems with part 2 (displaying different views).  Please see my  prototype and let me know where I am going wrong.

Many Thanks
Abs

Hi, I was wondering, is it possible to have two Y-Axis on a chart,

if so is there a showcase ?

kind regards
krissi

hi all,

is there a way to set a TemplateSelctor for the NewItem operation?

....like the ReadOnlyTemplateSelector or EditTemplateSelector

greetz

Hello Telerik,

    A while back I threw together a basic GridView theme for use by my company... The problem is that I originally removed the ability to use the built in filter control and now I cannot remember what I removed from the structure.

I have located the 'PART_DistinctFilterControl' control's code, which seems fine, but I cannot find anything else that would prevent the filter indicator from showing... Unless I have completely removed the button's code!

Can you help me put the pieces back together?

Hi Telerik Team,

with the new release 2012.2.607.40, it is no longer possible to select items whether multiple or single.If you use the RadListBoxItem with the normal ListBox, everything is fine.

Any idea?

Greetings
Huercan

Hi,

i have a problem to add a DocumentSource on my pdfviewer.

this works fine:

this does not work:

Why not? I have read this link, but without any good input.
What's wrong in the c# part? I have to add the DocumentSource here.

Please this is a strange Problem! I need help.

Thanks
best Regards
Rene