Button Command in Datatemplate not firing

[Tomasz]

Hi,

 

I have this structure as defined below. The issue is with the buton down at the bottom as it's not firing the "SendKudosCommand" which I have defined in my ViewModel. I have another buton defined outside the scope of the ListBox and it fires up with no issue. Any suggestions?

<telerikData:RadDataBoundListBox>

                        <telerikData:RadDataBoundListBox.ItemTemplate>
                            <DataTemplate>

                                <Border
                                    ...>

                                    <telerik:RadExpanderControl
                                        ...>
                                        <telerik:RadExpanderControl.ContentTemplate>

                                            <DataTemplate>

                                                <Grid>

                                                    <Grid.ColumnDefinitions>
                                                        <ColumnDefinition Width=".2*"/>
                                                        <ColumnDefinition Width=".6*"/>
                                                    </Grid.ColumnDefinitions>



                                                    <Ellipse
                                        ...>
                                                        <Ellipse.Fill>
                                                            <ImageBrush
                                                ImageSource="{Binding UserPhoto}"
                                                Stretch="UniformToFill"/>
                                                        </Ellipse.Fill>
                                                    </Ellipse>

                                                    <StackPanel
                                        ...>

                                                        <TextBlock
                                            .../>
                                                        <TextBlock
                                            .../>
                                                        <TextBlock
                                            .../>

                                                    </StackPanel>

                                                </Grid>
                                            </DataTemplate>

                                        </telerik:RadExpanderControl.ContentTemplate>

                                        <telerik:RadExpanderControl.ExpandableContentTemplate>
                                            <DataTemplate>

                                                <Grid>
                                                    <Grid.RowDefinitions>
                                                        <RowDefinition/>
                                                        <RowDefinition/>
                                                        <RowDefinition/>
                                                    </Grid.RowDefinitions>

                                                    <StackPanel
                                                        Orientation="Vertical"
                                                        Grid.Row="0">

                                                        <TextBlock
                                                            .../>

                                                        <ComboBox>
                                                            ...
                                                        </ComboBox>

                                                    </StackPanel>

                                                    <StackPanel
                                                        Orientation="Vertical"
                                                        Grid.Row="1">

                                                        <TextBlock
                                                            .../>
                                                        <TextBox
.../>

                                                    </StackPanel>

                                                    <Button
                                                        Grid.Row="2"
                                                        Content="Send"
                                                        HorizontalAlignment="Right"
                                                        Command="{Binding SendKudosCommand}"/>

                                                </Grid>

                                            </DataTemplate>
                                        </telerik:RadExpanderControl.ExpandableContentTemplate>

                                    </telerik:RadExpanderControl>

                                </Border>

                            </DataTemplate>
                        </telerikData:RadDataBoundListBox.ItemTemplate>

                    </telerikData:RadDataBoundListBox>

[Pavel R. Pavlov]

Hi Tomasz,

The first thing to check in such scenario is the data context of the button. You can check it using a custom converter in the questionable binding. In the converter you will be able to set a break point. It will allow you to see what data object comes in the binding. Please keep in mind that the object that comes in the binding should expose the command in order to allow the button to trigger it.  If the command is not there you should restructure your view model in a way that the object that you bind to exposes the command.

I hope this information will get you started.

Regards,
Pavel R. Pavlov
Telerik