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Last Updated: 15 Apr 2024 11:56 by ADMIN
Apoorva
Created on: 01 Mar 2024 13:50
Category: CheckBox
Type: Feature Request
0
CheckBox: Expose command that executes when checkbox state changes

Expose command that executes when checkbox state changes.

Currently I am using EventToCommandBehavior:

 

    <VerticalStackLayout>
        <telerik:RadCheckBox x:Name="checkbox">
            <telerik:RadCheckBox.Behaviors>
                <telerik:RadEventToCommandBehavior EventName="IsCheckedChanged" Command="{Binding CheckedCommand}" />
            </telerik:RadCheckBox.Behaviors>
        </telerik:RadCheckBox>
    </VerticalStackLayout>

 

 

public class ViewModel : NotifyPropertyChangedBase
{
    public ViewModel()
    {
        this.CheckedCommand = new Command<IsCheckedChangedEventArgs>(this.CheckBoxUserCommand);
    }

    private void CheckBoxUserCommand(IsCheckedChangedEventArgs obj)
    {
        // logic here:
    }

    public ICommand CheckedCommand { get; set; }  
}

 

 

 

1 comment
ADMIN
Didi
Posted on: 04 Mar 2024 11:46

Another option is using the community toolkit event to command behavior: https://learn.microsoft.com/en-us/dotnet/communitytoolkit/maui/behaviors/event-to-command-behavior 

The xaml:

<VerticalStackLayout>
    <telerik:RadCheckBox x:Name="checkbox">
        <telerik:RadCheckBox.Behaviors>
            <telerik:RadEventToCommandBehavior EventName="IsCheckedChanged" 
                                                Command="{Binding CheckedCommand}" />
        </telerik:RadCheckBox.Behaviors>
    </telerik:RadCheckBox>

    <telerik:RadCheckBox x:Name="telerik">
        <telerik:RadCheckBox.Behaviors>
            <toolkit:EventToCommandBehavior EventName="IsCheckedChanged"
                                            CommandParameter="{Binding IsChecked,Source={x:Reference telerik}}"
                                            Command="{Binding SelectDateCommand}"/>
        </telerik:RadCheckBox.Behaviors>
    </telerik:RadCheckBox>
</VerticalStackLayout>

and the ViewModel where the RelayCommand attribute is used: https://learn.microsoft.com/en-us/dotnet/communitytoolkit/mvvm/generators/relaycommand 

public partial class ViewModel : NotifyPropertyChangedBase
{
    public ViewModel()
    {
        this.CheckedCommand = new Command<IsCheckedChangedEventArgs>(this.CheckBoxUserCommand);
    }
    [RelayCommand]
    private void SelectDate(bool? state)
    {
        
    }
    private void CheckBoxUserCommand(IsCheckedChangedEventArgs obj)
    {

    }

    public ICommand CheckedCommand { get; set; }
}

Regards,
Didi
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