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In my WPF project, I have a ListBox that displays items from a List<string> collection. I wanted to make the text of these items editable, so I wrapped each of them in an ItemTemplate with a TextBox (might not be the best way, but I'm new to WPF). I was having trouble simply binding the TextBoxes' Text property to the value of each item. I finally stumbled upon an example using a single dot or period for its Path property ( {Binding Path=.} ): <ListBox ItemsSource="{Binding ElementName=recipesListbox,Path=SelectedItem.Steps}"> <ListBox.ItemTemplate> <DataTemplate> <TextBox Text="{Binding Path=.}"/> </DataTemplate> </ListBox.ItemTemplate> </ListBox> However I don't understand why simply using {Binding} didn't work. It raised a " Two-way binding requires Path or XPath " exception, as according to Microsoft : [...] a period (.) path can be used to bind to the current source. For example, Text="{Binding}" is equivalent to Text="{Binding Path=.}" Could someone shed light on this ambiguous behavior? EDIT: Moreover, it seems {Binding Path=.} does not necessarily give two-way binding, as modifying the text and moving the focus does not update the underlying source (the same source has also properties displayed and successfully modified on a DataGrid control). I'm definitely missing something here.

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