[Solved] Custom Grid View Cell Tooltip

[Nick McAlonan]

I was wondering whether anyone might be able to help with my problem.

I have a grid which is bound to a collection of objects, I require to load a custom tooltip which will eventually contain a graph when the user hovers over a certain cell. 

I can get the tooltip to display as expected but cant get the data binding correct, it always binds to the last rows data even when I hover over the first item.

To set the tool tip I use,

<controls:RadGridView.Columns>
  <controls:GridViewDataColumn Header="Value" DataMemberBinding="{Binding Value}" ToolTipTemplate="{StaticResource GraphPreview}"/>
</controls:RadGridView.Columns>

And the tooltip is declared in the Grid Resources,

<DataTemplate x:Key="GraphPreview" >
                                        <ToolTip Width="300" Height="150">
                                            <ToolTip.Template>
                                                <ControlTemplate TargetType="ToolTip">
                                                    <Border Background="{StaticResource BlackGradient}"
                                                            BorderBrush="{StaticResource DarkBlue}"
                                                            BorderThickness="1"
                                                            CornerRadius="10">
                                                        <ContentPresenter Margin="10" Content="{TemplateBinding Content}" />
                                                    </Border>
                                                </ControlTemplate>
                                            </ToolTip.Template>
                                            
                                            <StackPanel Orientation="Vertical">
                                                <TextBlock Foreground="White" Text="{Binding Name}"/>
                                                <TextBlock Foreground="White" Text="{Binding Value}"/>
                                                <TextBlock Foreground="White" Text="{Binding UnitType}"/>
                                                <TextBlock Foreground="White" Text="{Binding SuperType}"/>
                                            </StackPanel>
                                                
                                        </ToolTip>
                                        
                                    </DataTemplate>

[Pavel Pavlov]

Hi Nick McAlonan,

There was a known bug with the tooltip always showing data from the last row. To solve this please download a later version ( e.g. a later internal build ) .
Internal builds are available for download in your client.net account.


All the best,
Pavel Pavlov
the Telerik team

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