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Has anybody else experienced slowness when either sorting a column or resizing the width of a column?

To sort or resize a column it is taking 8 seconds, you might think many rows is the problem. But I would not say that 320 records is a lot of rows.

I'm using the Model View View Model concept and creating a custom class that is binding to the grid. Could this approach be causing the slowness?
Chad
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 answered on 13 Jul 2010
7 answers
751 views
hy everybody

is there an easy was to retrieve the number of rows of the GridView element i.e. gridview.rows.count? My intention is to build a loop i.e.
for i = 0 to gridview.rows.count - 1
...do something
next

Thanks for your help

Michael Lutz
BITsoft
Michael
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 answered on 13 Jul 2010
1 answer
138 views
How do you hide the chart legend in XAML? 




Sia
Telerik team
 answered on 13 Jul 2010
1 answer
249 views
Hi

I am currently trialling the Q2 controls and have a couple of questions regarding the RadPanelBar.

Firstly - I have used the ControlTemplates provided in the documentation to re-style the panel bar and the panel items. However the content headers and the items are now styled the same, what I want is for the header to stand out from the items. Could you please advise how I style these two items differently?

Secondly - is there a way to set the panels so that when expaned they only take up the space required for their items? At the moment the panels are expanding to fill all available space - for example I have three sections, when I expand the first section the other two sections are pushed to the bottom of the container, I would like the sections to expand only enough to show their items.

Thanks.
Kiril Stanoev
Telerik team
 answered on 13 Jul 2010
2 answers
212 views
Hey,

I´ve got a problem with styling an PanelBarItem in a HierarchicalDataTemplate.
I copied a style and tried to bind it to my PanelBarItem, but only the default-style appears (with the exception of the foreground, this color agrees with my style ).

Do I have a simple PanelBar with a view items in it and bind the style to it, everything is fine.
Causes the HierarchicalDataTemplate this missing style?

Below the Structure of my PanelBar: 

 

<DataTemplate x:Key="BereicheTemplate"> 
 
<StackPanel Orientation="Vertical" Margin="5">
 
<TextBlock Margin="5" Text="{Binding Name}"/>
</StackPanel>
</DataTemplate>
<HierarchicalDataTemplate  x:Key="ItemPanelTemplateThemen"
                           ItemTemplate="{StaticResource BereicheTemplate}"
                           ItemsSource="{Binding BereicheListe}" >
 
<telerik:RadPanelBarItem   Style="{DynamicResource RadPanelBarItemStyleMC}"  
                           HeaderTemplate="{DynamicResource ThemenDataTemplate}"
                           Header="{Binding}" >
</telerik:RadPanelBarItem>
</HierarchicalDataTemplate>
.
.

<telerik:RadPanelBar x:Name="ThemenListe" Margin="0,23.424,0,147.867" ItemTemplate="{DynamicResource ItemPanelTemplateThemen}" Style="{DynamicResource RadPanelBarStyleMC}" >

 

 

 

 

 

Regards
Betty

 

 

 

Betty Häusler
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 answered on 13 Jul 2010
2 answers
183 views
Hello telerikTeam,

I have an Issue with the SelectedColor in the RadColorPaletteView namely how can I get selectedColor ?
If I try this:

RadColorPaletteView colorPalette = sender as RadColorPaletteView;
 
RadColorPaletteViewItem selectedItem = colorPalette.SelectedItem;

I am getting null.

Could you please tell me what I am doing wrong ?

XAML
<telerik:RadColorPaletteView x:Name="BorderColor" Margin="0" Grid.Column="1" Palette="Standard" PaletteOrientation="Horizontal" Style="{StaticResource RadColorPaletteViewStyle}" VerticalAlignment="Center" PreviewMouseLeftButtonDown="ChangeColor"/>




Thank you.

Daniel
Viktor Tsvetkov
Telerik team
 answered on 13 Jul 2010
5 answers
185 views
We've noticed the IsChecked property does not respond to changes in the ViewModel. The properties the buttons IsChecked properties are bound to raise PropertyChanged events in the ViewModel, but do not respond to the event. Any ideas why they would not respond to changes?

We're using the most current 2010 release in a .Net 3.5 WPF application using the MVVM pattern.
Miro Miroslavov
Telerik team
 answered on 13 Jul 2010
1 answer
78 views
I have a simple TreeView with Editing enabled... and a few events.. however i have inconsistancies in the way the edit mode is working.... for some reason its clearing the text of the RadTreeViewItem, and other time it isnt?? see the video to see whats happening! i'm REALLY confused!!

http://www.screencast.com/users/kevinrhynas/folders/Jing/media/0bb7b9a7-1eb6-4a89-a7a5-016667f0ea4d
Valentin.Stoychev
Telerik team
 answered on 13 Jul 2010
3 answers
566 views
i have a "total" readonly field in my collection.
and it depends upon three other fields (quantity, Unit price, discount)
upon changing of any of these values i can see in debugging that the total property also changing,
but that is not reflecting in Grid Column of Total.
how to reflect the new value instantantly
however i have a simple Aggregate sum function in bottom which updating fine. but not the total Column field.

Rossen Hristov
Telerik team
 answered on 13 Jul 2010
5 answers
246 views
Hello,
I'm using RadControls for WPF Q1 2010 SP2.
I'm trying to save data from the Gridview with BinaryFormatter. My custom class is marked as serializable and saving List<MyClass> is OK, but when I'm trying to save MyGridView.Items the following error occures:

Type 'Telerik.Windows.Data.WeakEvent+WeakListener`1[[System.ComponentModel.
PropertyChangedEventArgs, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]]'
in Assembly 'Telerik.Windows.Data, Version=2010.1.603.35, Culture=neutral, PublicKeyToken=5803cfa389c90ce7'
is not marked as serializable.

Maybe I'm doing something wrong, so I need help, please.
Jokerwolf
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 answered on 13 Jul 2010
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