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3 answers
138 views
Hi All,

I have previously used an ArrayList as the ItemSource for my chart, this worked correctly
RadChart1.ItemSource = GetData(); 
Where GetData returned the ArrayList.

I know would like to customise the layout of my RadChart, I have done this in XAML
<telerik:RadChart x:Name="RadChart1" telerik:StyleManager.Theme="Vista" UseDefaultLayout="False">            
            <Grid> 
               <Grid.RowDefinitions> 
                   <RowDefinition Height="1*" /> 
                   <RowDefinition Height="6*" /> 
               </Grid.RowDefinitions> 
               <Grid.ColumnDefinitions> 
                   <ColumnDefinition /> 
               </Grid.ColumnDefinitions> 
               <telerik:ChartTitle Content="Sample Report" Grid.Row="0" Grid.Column="0" 
                                   VerticalAlignment="Center" HorizontalAlignment="Center" 
                                   TextElement.FontWeight="Bold" TextElement.FontSize="24" /> 
               <telerik:ChartArea x:Name="ChartArea1" Grid.Row="1" Grid.Column="0" /> 
            </Grid> 
        </telerik:RadChart> 
And now neither RadChart1.ItemSource nor ChartArea1.ItemSource will correctly display any graph data ("No Data Series")

Also I cannot add a dataseries to the dataseries collection using
ChartArea1.DataSeries.Add( 
I get the following error
Error   1   'Telerik.Windows.Controls.Charting.DataSeriesCollection' does not contain a definition for 'Add' and no extension method 'Add' accepting a first argument of type 'Telerik.Windows.Controls.Charting.DataSeriesCollection' 
 

Can anyone offer help on this please?

Rav
Velin
Telerik team
 answered on 14 Jun 2010
1 answer
131 views
Hello,

I have a TabControl with many items and I would like to activate the DropDownButton which shows a menu containing all TabItems.
As far as I can tell this feature should be supported as there is an IsDropDownOpen Property which shows me such a menu but I can't figure out how to get this menu during runtime.

In addition I'm looking for a way to change the appearance of the Left- and RightScrollButton (for the drop down button i've seen that there is a DropDownButtonStyle Property but I did not play around with it since I don't see this button at all yet).

I hope you can help me on these issues.
Thanks,
Peter



Tina Stancheva
Telerik team
 answered on 14 Jun 2010
6 answers
798 views
Hi,

I'm slowly getting to grips with styling the GridView control. So far I've styled the GridViewRow and GridViewHeaderCell. However I have noticed that somethin in my styling for GridViewHeaderCell (or maybe something I've left out) is causing the column resize functionality to stop working. Even if I fully define CanUserResizeColumns="True" on the grid itself, it still doesn't work. By commenting out all my GridViewHeaderCell style XAML the problem disappears, so its in there somewhere! Any help would be much appreciated.

<Pen x:Key="GridViewHeaderCellDropMarkerPen" Brush="{StaticResource GridViewHeaderCellDropMarkerPenBrush}" Thickness="60" /> 
     
    <Storyboard x:Key="MouseOver"
        <DoubleAnimationUsingKeyFrames BeginTime="0" Storyboard.TargetName="GridViewHeaderCell_Over" Storyboard.TargetProperty="Opacity"
            <SplineDoubleKeyFrame KeyTime="0:0:0.12" Value="1" /> 
        </DoubleAnimationUsingKeyFrames> 
    </Storyboard> 
    <Storyboard x:Key="MouseOut"
        <DoubleAnimationUsingKeyFrames BeginTime="0" Storyboard.TargetName="GridViewHeaderCell_Over" Storyboard.TargetProperty="Opacity"
            <SplineDoubleKeyFrame KeyTime="0:0:0.12" Value="0" /> 
        </DoubleAnimationUsingKeyFrames> 
    </Storyboard> 
     
 
    <ControlTemplate x:Key="GridViewHeaderCellTemplate" TargetType="telerik:GridViewHeaderCell"
        <Grid SnapsToDevicePixels="True" > 
            <Border x:Name="GridViewHeaderCell" 
                    BorderBrush="{TemplateBinding BorderBrush}"  
                    BorderThickness="{TemplateBinding BorderThickness}" 
                    Background="{TemplateBinding Background}" 
                     
                    SnapsToDevicePixels="True" 
                    /> 
            <Border x:Name="GridViewHeaderCell_Over" 
                    BorderBrush="{StaticResource GridViewHeaderCellMouseOverBorderBrush}"  
                    BorderThickness="{TemplateBinding BorderThickness}" 
                    Background="{StaticResource GridViewHeaderCellMouseOverBackground}" 
                    Opacity="0" 
                     
                    SnapsToDevicePixels="True" 
                    /> 
            <Border x:Name="GridViewHeaderCell_Selected" 
                    BorderBrush="{StaticResource GridViewHeaderCellMouseOverBorderBrush}"  
                    BorderThickness="{TemplateBinding BorderThickness}" 
                    Background="{StaticResource GridViewHeaderCellSortedBackground}" 
                    Opacity="0" 
                     
                    SnapsToDevicePixels="True" 
                    /> 
 
                <Grid x:Name="PART_HeaderCellGrid"
                    <Grid.ColumnDefinitions> 
                        <ColumnDefinition Width="*" /> 
                        <ColumnDefinition Width="Auto"  /> 
                    </Grid.ColumnDefinitions> 
 
                    <telerik:AlignmentContentPresenter Grid.Column="0"  
                                                    Margin="3,4,2,3" 
                                                    VerticalAlignment="Center" 
                                                    TextAlignment="{TemplateBinding TextAlignment}"   
                                                    TextBlock.FontWeight="Bold"/> 
                                                      
 
                        <Grid Grid.Column="1" HorizontalAlignment="Right"  
                              Background="{StaticResource GridViewHeaderCellSortingAndFilteringContentBackground}"
                            <Grid.ColumnDefinitions> 
                                <ColumnDefinition Width="Auto"/> 
                                <ColumnDefinition Width="Auto" /> 
                            </Grid.ColumnDefinitions> 
 
                            <Path x:Name="PART_SortIndicator" Fill="{StaticResource GridViewIndicatorsPartsFill}" Stretch="Fill" Data="M0,0 L1,0 2,0 3,0 4,0 5,0 5,1 4,1 4,2 3,2 3,3 2,3 2,2 1,2 1,1 0,1 0,0 z" HorizontalAlignment="Left" Margin="1,0,4,0" VerticalAlignment="Center" Width="5" Height="3" RenderTransformOrigin="0.5,0.5" > 
                                <Path.RenderTransform> 
                                    <TransformGroup> 
                                        <ScaleTransform ScaleX="1" ScaleY="-1"/> 
                                        <SkewTransform AngleX="0" AngleY="0"/> 
                                        <RotateTransform Angle="0"/> 
                                        <TranslateTransform X="0" Y="0"/> 
                                    </TransformGroup> 
                                </Path.RenderTransform> 
                            </Path> 
 
                            <telerik:FilteringDropDown Name="PART_DistinctFilterControl" Grid.Column="1"  SnapsToDevicePixels="True" 
                                                    Visibility="{TemplateBinding FilteringUIVisibility}" 
                                                    telerik:StyleManager.Theme="{StaticResource Theme}" Margin="0,0,8,0"/> 
 
                        </Grid> 
                </Grid> 
                 
        </Grid> 
         
        <ControlTemplate.Triggers> 
 
            <MultiTrigger> 
                <MultiTrigger.EnterActions> 
                    <BeginStoryboard Storyboard="{StaticResource MouseOver}" /> 
                </MultiTrigger.EnterActions> 
                <MultiTrigger.ExitActions> 
                    <BeginStoryboard Storyboard="{StaticResource MouseOut}" /> 
                </MultiTrigger.ExitActions> 
                <MultiTrigger.Conditions> 
                    <Condition Property="IsMouseOver" Value="True" /> 
                    <Condition Property="SortingState" Value="None" /> 
                </MultiTrigger.Conditions> 
            </MultiTrigger> 
             
            <Trigger Property="SortingState" Value="Ascending"
                <Setter TargetName="PART_SortIndicator" Property="Path.Visibility" Value="Visible" /> 
                <Setter TargetName="PART_SortIndicator" Property="Path.LayoutTransform" > 
                    <Setter.Value> 
                        <ScaleTransform ScaleX="1" ScaleY="1"/> 
                    </Setter.Value> 
                </Setter> 
                <Setter Property="Opacity" TargetName="GridViewHeaderCell_Selected" Value="1" /> 
            </Trigger> 
            <Trigger Property="SortingState" Value="Descending"
                <Setter TargetName="PART_SortIndicator" Property="Path.Visibility" Value="Visible" /> 
                <Setter TargetName="PART_SortIndicator" Property="Path.LayoutTransform" > 
                    <Setter.Value> 
                        <ScaleTransform ScaleX="1" ScaleY="-1"/> 
                    </Setter.Value> 
                </Setter> 
                <Setter Property="Opacity" TargetName="GridViewHeaderCell_Selected" Value="1" /> 
            </Trigger> 
            <Trigger Property="SortingState" Value="None"
                <Setter TargetName="PART_SortIndicator" Property="Path.Visibility" Value="Hidden" /> 
            </Trigger> 
        </ControlTemplate.Triggers>   
    </ControlTemplate> 
 
    <Style TargetType="telerik:GridViewHeaderCell"
        <Setter Property="Template" Value="{StaticResource GridViewHeaderCellTemplate}" /> 
        <Setter Property="Background" Value="{StaticResource GridViewHeaderBackground}" /> 
        <Setter Property="BorderBrush" Value="{StaticResource GridViewHeaderCellInnerBorderBrush}" /> 
        <Setter Property="BorderThickness" Value="0,0,2,1" /> 
        <Setter Property="Foreground" Value="{StaticResource GridViewHeaderCellForeground}" /> 
        <Setter Property="DropMarkPen" Value="{StaticResource GridViewHeaderCellDropMarkerPen}" /> 
    </Style> 
Mark
Top achievements
Rank 1
 answered on 14 Jun 2010
3 answers
142 views
Hello,

Recently we have upgraded our Telerik dlls to 2010 SP2  (had the 2010 Q1 before).
We found that some of our custom style templates for the RadGridView are no longer applied for some reason.
For example, our GridViewPanel style, our GridViewFooter style etc.

Please note - we are using implicit styles (no x:Key on the style, just TargetType).
How should we fix this? I saw you had mentioned that " All RadControls skins now get a major facelift. Your custom themes might not work as expected" - but this is rather vague and does not allow me to find out why the styles aren't applied now or how should I fix this.

To make things worse, after the Telerik upgrade, Blend does not open the solution anymore, neither does it give me any error messages.

I'd appreciate some help, Tx.
Gili
Kalin Milanov
Telerik team
 answered on 14 Jun 2010
1 answer
147 views
When we set the GridViewDataColumn BackGroundColor sometimes the selected-row-color hides behind the columncolor and sometimes it does not.
Example:
Using Background="#20FF0011" the selected-row-color appeares as aspected.
Using Background="#CCFFCC" the selected-row-color hides behind the colomn.

Why this difference?




Kalin Milanov
Telerik team
 answered on 14 Jun 2010
1 answer
134 views
how to validate if the time in a radtimepicker is less than 24 hours, and if 
largest set a default value
Kaloyan
Telerik team
 answered on 14 Jun 2010
1 answer
158 views
I´d like to know if the problem mentioned in this thread (http://www.telerik.com/community/forums/wpf/datepicker/display-date-format.aspx) was solved in the latest release of RadDatePicker control.

Thanks

Marcelo



Kaloyan
Telerik team
 answered on 14 Jun 2010
1 answer
147 views
Hi, I'm getting notification from the VS2010 Extensions Manager that there are updates for the Telerik vs extensions for WebUI, Silverlight and WPF but also being told by the Extension Manager that I have to uninstall them through Windows Add/Remove program.  But there doesn't appear to be a separate installer for this.  How do I do the update?

Thanks
Erjan Gavalji
Telerik team
 answered on 14 Jun 2010
1 answer
145 views
Setting the FrozenColumnCoun from CodeBehind works fine.
But... setting the FrozenColumnCoun in the xaml does not work anymore...
Vlad
Telerik team
 answered on 14 Jun 2010
2 answers
159 views
Hello,

I'm new to WPF,
Is there any small sample on how to Insert,Update,Delete items in a gridview using LINQ?

Thanks,
Mike

Mike_T
Top achievements
Rank 1
 answered on 13 Jun 2010
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