When I use the " WinJS.Binding.oneTime " how to use the converter

Question

hi jpsanders~ Do you remember that you answered this question:http://social.msdn.microsoft.com/Forums/en-US/winappswithhtml5/thread/f53f4a19-6a32-41af-8933-2d115f2bcd24?  ,about " Binding ListView to collection from  C# WinRT component "

But When I use the " WinJS.Binding.oneTime " how to use the converter ?

For example I do something like this:

Answer 1

Have you tried putting oneTime before textContent?

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Jeff Sanders (MSFT)

Answer 2

Have you tried putting oneTime before textContent?

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Jeff Sanders (MSFT)

 I tried it again ~ But  It  does not work ~  

And WinJS.Binding.oneTime can not be placed before the textContent~

Do you have any other ways ?  thanks ~  :)

Answer 3

Ah, I see the issue... oneTime IS a converter.

You could override the converter in WinJS but let me see if there is a more elegant way to solve this.

-Jeff

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Jeff Sanders (MSFT)

Answer 4

Hi Sith,

I did not find a better way to do this.  I think there are three things you can consider...

1. Format the data the way you want to see it in your C# component (perhaps set a property before you retrieve it).

2. Implement the datasource in your C# componenet so that is supports normal binding (IObservable).

3. Create a custom renderer and format your field there.

-Jeff

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Jeff Sanders (MSFT)

Answer 5

ok I will try it thanks jpsanders :)

Answer 6

en...but.....

How to use IObservable to Implement the datasource in our C# componenet so that is supports normal binding .

Such as our  Data source definition like this  :

namespace DataComponent
{
    [DataContract]
    public sealed class Chapter
    {
        public Book Parent { get; set; }
        [DataMember]
        public string ID { get; set; }
        [DataMember]
        public string IndexTitle { get; set; }
        [DataMember]
        public string Title { get; set; }
        [DataMember]
        public string Version { get; set; }
        [DataMember]
        public string Icon { get; set; }
        [DataMember]
        public string CreditPoint { get; set; }
        [DataMember]
        public string FolderPath { get; set; }
        [DataMember]
        public IList<Section> Sections { get; set; }

        public int SectionsObservable { get; set; }

        public Chapter(){
            this.Sections = new List<Section>();
        }
    }
}