Visibility based on radio buttons

In the following case, is there any way we can make the textview visible only if we select the first option

  <select
    name="CalculateDates"
    defaultValue="LMP"
    as="radiobuttons"
    label="Select">
    <option
      value="LMP date:">LMP</option>
    <option
      value="EDD date:">EDD</option>
  </select>


<textarea  
        type="string"
        name="Comments"
        label="EDD comments"></textarea>

[edongashi]

Converters can now have a parameter using the following syntax:

|IsEqual('String')
|IsEqual(3)
|IsEqual(25.3)
|IsEqual(true)
|IsEqual(false)
|IsEqual(null)

The IsEqual is just a demonstration. You can create custom factories and register them in Resource.ValueConverterFactories. You cannot have a dynamic value in converters.

Note This is not Binding.ConverterParameter that is passed to IValueConverter.Convert. It was too messy and too late to implement it. Instead, the parameter is parsed from the expression and is passed to corresponding factory in the new property: Resource.ValueConverterFactories, which creates a new converter with the parameter value baked in.

For backwards compatibility we now have two dictionaries for storing converters globally:

Resource.ValueConverters is a dictionary of string : IValueConverter and Resource.ValueConverterFactories is a dictionary of string : func(object -> IValueConverter).

Feel free to register custom converters at application startup.

[hashitha]

This is working well now