Bindable property on custom control

[Michael Bakker]

To meet some layout requirements for displaying a currency value i created a custom control that inherits from a Telerik.Reporting.Panel.
I added two textboxes to it, one left aligned with the currency symbol, one right aligned containing the actual value.
I added a Value (String) property to this custom control that merely gets/sets the Value property on the right aligned textbox inside the panel.

This works nicely, except when i add a binding. An error message states that the path 'Value' is not supported for binding.
I tried to solve this by adding a Bindable(True) attribute to the property declaration, but that doesn't help.

How can i make the Value property on this custom control be bindable?

[Michael Bakker]

I solved it by relaying the 'Bindings' property of the Panel to the Bindings property of the textbox, which' value must be bound.
Public Shadows ReadOnly Property Bindings as BindingCollection
 Get
     return txtValue.Bindings
 End get
End Property

I think there might be a more elegant solution though.   

[Michael Bakker]

And there is a better solution: the 'Alignment component' of the format string.

See: https://msdn.microsoft.com/en-us/library/txafckwd(v=vs.110).aspx

E.g:  € {0,15:N0}

This will display a left aligned € symbol and a right aligned 15 character long value, padded by spaces.

 

 

[Michael Bakker]

Rember to use a fixed-width font!