An important part of the data binding is setting the source object.

For a continuous flow of data changes, the source property needs to emit a property Change event.

This parameter is optional and could be omitted, in which case a property named binding Context of the There is an option to bind a function to execute on a specific event (MVVM command like).

This option is available only through an XML declaration.

The interesting thing here is that the source of the binding is not specified explicitly.

More about this topic will be discussed in the Binding source article.

Also in the article could be found samples, which demonstrates different use cases of the data binding usage.To implement such a functionality, the source object should have an event handler function.Note: Be aware that if there is a button with an event handler function on Tap within the page code-behind (more info about XML declarations, and on Tap function within the binding Context object, then there will not be two event handlers hooked up for that button.For executing the function in the code behind, the following syntax should be used in the XML - tap="on Tap" and for the function from the binding Context - tap="". All examples above demonstrate how to bind a UI element to a property of the binding Context.If there is only plain data, there is no property to bind, so the binding should be to the entire object.

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In this post, I will give you some tips on how you can debug your data bindings in WPF.

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