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RadDropDownButton filled with a list of checkboxes

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Rafael Moreno del Pino
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Rafael Moreno del Pino asked on 23 Apr 2010, 11:29 PM
Hello,

     I would like a RadDropDownButton with a list of checkboxes inside. So I have tried to ways of doing it: with a ListBox and with a RadGridView as a container for that list of checkboxes.

    Both ways work well, but problem is that I would like that if I check the first item (called "ALL"), all the checkboxes were checked.

 <telerik:RadDropDownButton x:Name="cbSalesRep" Grid.Row="0" Grid.Column="0"  DropDownButtonPosition="Right" DropDownMaxHeight="300" DropDownWidth="150"  DropDownMaxWidth="150" ToolTipService.ToolTip="Choose Sales Rep..." 
                                        Height="25" Width="150" HorizontalAlignment="Left" Margin="26,15,22,0" TabIndex="11" telerik:StyleManager.Theme="Windows7" VerticalAlignment="Center"
                            <telerik:RadDropDownButton.DropDownContent> 
                                <telerikGridView:RadGridView x:Name="y" ItemsSource="{Binding SalesRepList, Mode=TwoWay}" ActionOnLostFocus="None" IsReadOnly="True" EditTriggers="None" GridLinesVisibility="None" ShowColumnHeaders="False"  
                                                            ShowGroupPanel="False" RowIndicatorVisibility="Collapsed" CanUserDeleteRows="False" CanUserInsertRows="False"  
                                                            CanUserSelect="False"  AutoGenerateColumns="False"
 
                                    <telerikGridView:RadGridView.Columns> 
                                        <telerikGridView:GridViewDataColumn Header="Activity" Width="*" Background="Transparent"
                                            <telerikGridView:GridViewDataColumn.CellTemplate> 
                                                <DataTemplate> 
                                                    <CheckBox IsChecked="{Binding IsSelected, Mode=TwoWay}" Content="{Binding Name}"/> 
                                                </DataTemplate> 
                                            </telerikGridView:GridViewDataColumn.CellTemplate> 
                                        </telerikGridView:GridViewDataColumn> 
                                         
                                         
                                    </telerikGridView:RadGridView.Columns> 
                                   
                        </telerik:RadDropDownButton> 

So the gridview itemsource is SalesRepList (ViewModel), which is a Collection of items of the class SalesRep (Model), that has the property IsChecked as one of its parameters.

So I don't have SalesRep in the ViewModel, therefore I cannot use RaisePropertyChanged, and my checkboxes don't update it's value in the view!

All the examples I have seen so far were made binding the IsChecked to a property in the VM, but I cannot do that! (I have tried to bind the IsChecked to a property in the VM but it doesn't bind. Maybe because of the bind of the RadDropDownButton where the GridView is?

Any ideas?


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Kiril Stanoev
Telerik team
answered on 28 Apr 2010, 01:53 PM
Hello Rafael,

I've attached a sample project that offers one possible solution to this scenario. Have a look at it and let me know how it works for you. I'd be glad to further assist you.

Kind regards,
Kiril Stanoev
the Telerik team

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Rafael Moreno del Pino
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Kiril Stanoev
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