Question

I have a simple Linq to XML query that i run and the results are bound to a listbox (via a collection). What i can’t figure out is how to alter the result before binding them, for example. I have the following code:

 XElement xmlEvents = XElement.Parse(e.Result);
 lstb.ItemsSource = from GetEvents in xmlEvents.Descendants("e2event")
     select new GetEvents
     {
         eventid = GetEvents.Element("eventid").Value,
         eventtime = GetEvents.Element("eventtime").Value
     };

eventtime returns a linux time stamp, i have a little method that converts this into a datetime stamp. So how would i go about converting to this before binding to the listbox?

Answer 1

Well the simplest approach would be to change your projection:

XElement xmlEvents = XElement.Parse(e.Result);
lstb.ItemsSource =
            from GetEvents in xmlEvents.Descendants("e2event")
            select new GetEvents
            {
                 eventid = GetEvents.Element("eventid").Value,
                 eventtime = ConvertTime(GetEvents.Element("eventtime").Value)
            };

(Where ConvertTime is your method.)

Note that if this is an integer value, you could get LINQ to XML to perform the numeric conversion for you:

XElement xmlEvents = XElement.Parse(e.Result);
lstb.ItemsSource =
            from GetEvents in xmlEvents.Descendants("e2event")
            select new GetEvents
            {
                 eventid = GetEvents.Element("eventid").Value,
                 eventtime = ConvertTime((long) GetEvents.Element("eventtime"))
            };