WPF Databinding CheckBox.IsChecked

How would I bind the IsChecked member of a CheckBox to a member variable in my form?

(I realize I can access it directly, but I am trying to learn about databinding and WPF)

Below is my failed attempt to get this working.

XAML:

<Window x:Class="MyProject.Form1"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="Title" Height="386" Width="563" WindowStyle="SingleBorderWindow">
<Grid>
    <CheckBox Name="checkBoxShowPending" 
              TabIndex="2" Margin="0,12,30,0" 
              Checked="checkBoxShowPending_CheckedChanged" 
              Height="17" Width="92" 
              VerticalAlignment="Top" HorizontalAlignment="Right" 
              Content="Show Pending" IsChecked="{Binding ShowPending}">
    </CheckBox>
</Grid>
</Window>

Code:

namespace MyProject
{
    public partial class Form1 : Window
    {
        private ListViewColumnSorter lvwColumnSorter;

        public bool? ShowPending
        {
            get { return this.showPending; }
            set { this.showPending = value; }
        }

        private bool showPending = false;

        private void checkBoxShowPending_CheckedChanged(object sender, EventArgs e)
        {
            //checking showPending.Value here.  It's always false
        }
    }
}
<Window ... Name="MyWindow">
  <Grid>
    <CheckBox ... IsChecked="{Binding ElementName=MyWindow, Path=ShowPending}"/>
  </Grid>
</Window>

Note i added a name to <Window>, and changed the binding in your CheckBox. You will need to implement ShowPending as a DependencyProperty as well if you want it to be able to update when changed.

WPF checkbox binding, Here is a post that shows an example of simple data binding to a IsChecked property of a two check boxes, which are mutually exclusive. http://  It seems a bug existed in WPF 3.0 with OneWay bindings on IsChecked causing the binding to be removed. Thanks to this post for the assistance, it sounds like the bug was fixed in WPF 4.0 To reproduce, create a new WPF project.

Addendum to @Will's answer: this is what your DependencyProperty might look like (created using Dr. WPF's snippets):

#region ShowPending

/// <summary>
/// ShowPending Dependency Property
/// </summary>
public static readonly DependencyProperty ShowPendingProperty =
    DependencyProperty.Register("ShowPending", typeof(bool), typeof(MainViewModel),
        new FrameworkPropertyMetadata((bool)false));

/// <summary>
/// Gets or sets the ShowPending property. This dependency property 
/// indicates ....
/// </summary>
public bool ShowPending
{
    get { return (bool)GetValue(ShowPendingProperty); }
    set { SetValue(ShowPendingProperty, value); }
}

#endregion

#351 – Binding a CheckBox's IsChecked Property to a Boolean , data binding to bind the IsChecked property to a boolean variable. In the example below, we have three CheckBox controls, each bound to a  Browse other questions tagged c# wpf xaml data-binding checkbox or ask your own question. The Overflow Blog Brush up your COBOL: Why is a 60 year old language suddenly in demand?

You must make your binding mode as TwoWay :

<Checkbox IsChecked="{Binding Path=ShowPending, Mode=TwoWay}"/>

CheckBox DataBinding Doesn't Update - MSDN, Windows Presentation Foundation (WPF) I am databinding a Boolean property to a checkbox. I am doing the databind in a TwoWay mode so I expect that when the checkbox is checked for the property to change to true, and  IsChecked="{Binding ShowPending}"> </CheckBox> </Grid> It's probably worth noting at this point that what we have achieved so far is the ability to bind a UI Control to a property of your code-behind class, and for that code-behind property to be kept up-to-date with changes to the UI element.

The CheckBox control, The IsChecked property should also be used from Code-behind if you want to check whether a certain CheckBox is checked or not. Custom content. The  Let’s take an example to create one WPF Application, put four check boxes and put one text box in it. The user has to select the check box and whatever check box the user selects, you have to display the list of all the checked checkboxes in the text box.

Value conversion with IValueConverter, jQuery · PHP5. Data binding: For instance, you may want to check a checkbox based on a Boolean value, but you want it reversed, so that the CheckBox is checked if the value is false and not checked if the value is true. You can even use  Data binding overview in WPF. 09/19/2019; 38 minutes to read; In this article. Data binding in Windows Presentation Foundation (WPF) provides a simple and consistent way for apps to present and interact with data. Elements can be bound to data from a variety of data sources in the form of .NET objects and XML.

CheckBox Binding In MVVM - WPF, In simple words, we have to create a checkbox, which is checked on the change of the event in Windows form Application, but in MVVM pattern,  #825 – Two Way Binding for a CheckBox May 22, 2013 2 Comments You can bind the IsChecked property of a CheckBox to a boolean variable, so that the variable will always reflect the current value of the CheckBox in the user interface.

How to bind a three-state CheckBox to some other CheckBoxes in a , CheckBox IsChecked = "{x:Null}" IsThreeState = "True" >IsChecked This is arguably one of the most powerful and useful features of WPF. one type to another and provide a way to apply custom logic to a data binding. WPF - Checkbox - A checkbox is a control that a user can select (check) or clear (uncheck). It provides a list of options that a user can select, such as a list of settings to a

Comments
  • If the property is in a ViewModel rather than the View itself, how would you do the binding?
  • If using a ViewModel, you would typically set your DataContext within your View (or in the XAML) to your ViewModel, and simply do IsChecked="{Binding ShowPending}"
  • Although OneWay is the default for many properties, the IsChecked property is TwoWay by default. See Binding Overview