convert ValueChanged event in LinearContentPointer to a command

[hassan salman]

i am using the CommunityToolkit in my maui app.

I would like to know how to convert the ValueChanged event in LinearContentPointer to a command.

I am able to convert the event LabelCreated in the SfLinearGauge by using EventToCommandBehavior. See code below:

                        <gauge:SfLinearGauge x:Name="heightCalculatorGauge"

                                 Minimum="0"

                                 Maximum="250"

                                 Interval="50" MinimumHeightRequest="120"

                                 HorizontalOptions="Center"

                                 MinorTicksPerInterval="0"

                                 Orientation="Vertical"

                                 TickPosition="Outside"

                                 LabelPosition="Outside">

                            <gauge:SfLinearGauge.Behaviors>//here it works

                                <toolkit:EventToCommandBehavior

                                    EventName="LabelCreated"

                                    Command="{Binding HeightLabelCreatedCommand}"

                                    EventArgsConverter="{StaticResource LabelCreatedEventArgsConverter}"/>

                            </gauge:SfLinearGauge.Behaviors>

                            <gauge:SfLinearGauge.MarkerPointers>

                                <gauge:LinearShapePointer Value="120"

                                              x:Name="heightCalculatorShape"

                                              ShapeType="Rectangle"

                                              Position="Outside"

                                              EnableAnimation="True"

                                              IsInteractive="True"

                                              ShapeHeight="1.5"

                                              ShapeWidth="165"

                                              Fill="#ff0074E3" >

                                    <gauge:LinearContentPointer.Behaviors>//ERROR: the attachable property "Behaviors" was not fount in type "LinearContentPointer"

                                        <toolkit:EventToCommandBehavior

                                    EventName="ValueChanged"

                                    Command="{Binding ValueChangedCommand}"

                                    EventArgsConverter="{StaticResource ValueChangedEventArgsConverter}"/>

                                    </gauge:LinearContentPointer.Behaviors>

                                </gauge:LinearShapePointer>

...MORE XAML....

but LinearContentPointer does not contains a list of Behavior. 

best regards.

[Vishal Omprasad]

We regret to inform you that the behavior can only be included for VisualElement type, and unfortunately, the LinearContentPointer is not a VisualElement type. As a result, the command support for the ValueChanged event cannot be added to the LinearContentPointer.

 

We apologize for any disappointment this may cause and if there is anything else we can assist you with, please don't hesitate to reach out to us.

[hassan salman]

Thank you for your response.

is there a way to convert this event to a command without behavior?

[Eswaran Thirugnanasambandam]

We can invoke the command from the ValueChanged event as explained in the below link

https://dotnetdevaddict.co.za/2017/07/13/turning-events-into-commands/

We have prepared a sample to achieve your requirement and please get it from below attachment.

Attachment: LinearGaugeGettingStarted_d4ae9a7f.zip