Binding user control to property

Question

I am trying to make custom control and bind that to static field. I'm kinda stuck but this is how I would want it to work:

<BooleanControl desc="Description" bind = {Binding Save.b}/>

Desc would be the description for the checkBox, Save is class that holds the field b which needs to be binded to the control.

I'm making custom control because I also need to be able to make the control by giving description and reference to the field to constructor.

Here's what I have now:

public partial class BooleanControl : UserControl { public string desc { set; get; } public BooleanControl() { InitializeComponent(); } }

But I am not sure if this is the right way to do it, since I am not going to change the description, I just need to set it in designer and by giving the value to constructor. I am still missing the part where I update Save.b according to the value of checkbox (inside BooleanControl) because I'm not sure what is the right way to do it.

Maxime Tremblay-Savard · Accepted Answer · 2015-06-29 19:42:17Z

Create a dynamic property of type "yourclass" named Bind and when it is filled do what you want with it. It would look like this:

public YourClass Bind { get { return (YourClass)GetValue(BindProperty); } set { SetValue(BindProperty, value); } } // Using a DependencyProperty as the backing store for Bind. This enables animation, styling, binding, etc... public static readonly DependencyProperty BindProperty = DependencyProperty.Register("Bind", typeof(YourClass), typeof(UserControl1), new PropertyMetadata(BindModified)); private static void BindModified(DependencyObject d, DependencyPropertyChangedEventArgs e) { ((UserControl1)d).AttachEventHandler(); } private void AttachEventHandler() { //Modify what you want here }

And you would simply use it as you wanted:

<BooleanControl Bind="{Binding Save.b}"/>

What is AttachEventHandler for? Do i need to add something to Save class too? Some tutorials said that I need to implement INotifyPropertyChanged and some didn't even talk about that.
You can use it to write whatever logic you need. If you need to do calculation or anything else.

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