WPF TextBox MaxLength — Is there any way to bind this to the Data Validation Max Length on the bound field?

Question

ViewModel:

public class MyViewModel
{
    [Required, StringLength(50)]
    public String SomeProperty { ... }
}

XAML:

Answer 1

Or you can have your model only to accept a max # chars:

private string _MyText { get; set; }
public string MyText { get => _MyText; set => _MyText = value?.Substring(0, 
Math.Min(value.Length, 15)); }

Text="{Binding Path=MyText}"