Cancel Checkbox Change in .NET MAUI

Updated on Dec 4, 2025

Environment

Version	Product	Author
12.0.0	Telerik UI for .NET MAUI CheckBox	Dobrinka Yordanova

Description

I want to cancel a state change in a Checkbox control in .NET MAUI based on a specific condition. This allows me to maintain control over the Checkbox's state and update it dynamically.

This knowledge base article also answers the following questions:

• How to prevent Checkbox state change in .NET MAUI?
• How to handle the IsCheckedChanged event to cancel state change?
• How to implement conditional logic for Checkbox state in .NET MAUI?

Solution

To achieve this behavior, use the IsCheckedChanged event and set the IsChecked property conditionally.

1. Create a ViewModel class to store and bind the Checkbox state.

csharp

public class ViewModel : NotifyPropertyChangedBase
{
    private bool myproperty = false;
    public bool MyProperty
    {
        get => this.myproperty;
        set
        {
            if (this.myproperty != value)
            {
                this.myproperty = value;
                OnPropertyChanged();
            }
        }
    }
}

2. Use the IsCheckedChanged event to monitor state changes.

3. Implement conditional logic to revert the state if a condition is not met.

csharp

public partial class MainPage : ContentPage
{
    ViewModel vm;
    public bool OperationPassed = true;

    public MainPage()
    {
        InitializeComponent();
        this.vm = new ViewModel();
        this.BindingContext = this.vm;
    }

    private void RadCheckBox_IsCheckedChanged(object sender, IsCheckedChangedEventArgs e)
    {
        // Check condition and revert state
        if (this.OperationPassed is false)
        {
            this.vm.MyProperty = false;
        }
        else
        {
            this.vm.MyProperty = true;
        }
    }
}

4. Define the CheckBox in XAML:

xml

<HorizontalStackLayout Spacing="5" VerticalOptions="Start">
    <telerik:RadCheckBox IsChecked="{Binding MyProperty, Mode=TwoWay}" 
                         IsCheckedChanged="RadCheckBox_IsCheckedChanged" 
                         IsThreeState="False"/>
</HorizontalStackLayout>

See Also

• CheckBox Overview