<CategoryAttribute("Common Properties")>
Public Property BlockUIOnBusy As Boolean

Dim instance As UXPage
Dim value As Boolean
 
instance.BlockUIOnBusy = value
 
value = instance.BlockUIOnBusy

[CategoryAttribute("Common Properties")]
public bool BlockUIOnBusy {get; set;}

public read-write property BlockUIOnBusy: Boolean; 

CategoryAttribute("Common Properties")
public function get,set BlockUIOnBusy : boolean

[CategoryAttribute("Common Properties")]
public: __property bool get_BlockUIOnBusy();
public: __property void set_BlockUIOnBusy( 
   bool value
);

[CategoryAttribute("Common Properties")]
public:
property bool BlockUIOnBusy {
   bool get();
   void set (    bool value);
}

<Intersoft:UXPage
        ... 
        xmlns:Intersoft="http://intersoft.clientui.com/schemas"
        xmlns:ViewModels="clr-namespace:ClientUIBusinessApp1.ViewModels"
        x:Class="ClientUIBusinessApp1.RegisterForm" 
        IsBusy="{Binding Path=IsBusy}"
        BlockUIOnBusy="true">

    <Intersoft:UXPage.DataContext>
        <ViewModels:RegisterFormViewModel/>
    </Intersoft:UXPage.DataContext>

    <Grid x:Name="LayoutRoot">
    ...
    </Grid>
</Intersoft:UXPage>