What do I need to further qualify the DataContext for a binding?

Question

The files I have created and will be referring to in this question are:

TechnicainSelectionView.xaml
TechnicianSelectionView.cs
TechnicianSelectionViewModel.         


        

Answer 1

You need to specify the type of data context in the xaml to get design-time support. Even though you assigned the data context in code-behind, the designer is not going to recognize that.

Try putting the following in your xaml:

d:DataContext="{d:DesignInstance vm:TechnicianSelectionViewModel}"

See this link for more details.

Answer 2

In my Xamarin Forms Xaml file I used the following lines in the header (ContentPage tag) and it worked perfectly as I wanted.

Basically now

• the intellisense shows the fields in the binding

• my Resharper is able to rename the binding in the Xaml file if I refactor the name of the property

  xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
  xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
  xmlns:vm="clr-namespace:YourApplicationName.ViewModels;assembly=YourApplicationName"
  mc:Ignorable="d"
  d:DataContext="{d:DesignInstance {x:Type vm:CurrentPageViewModel}}"