Linq and Dictionary and converting array values

Question

I have the following code

IDictionary<string, IEnumerable<Control>>

I need to convert it to

IDictionary<string, IEnumerable<string>>

using ClientID as the new value.

Does anybody know how to do this in Linq instead iterating through the dictionary?

Thanks

Podge

To get the ClientID of all the values in the dictionary, something's going to have to iterate over it! — Graham Clark
– Graham Clark, Commented Aug 4, 2010 at 8:41

Matthew Abbott · Accepted Answer · 2010-08-04 08:52:57Z

6

Something like

IDictionary<string, IEnumerable<Control>> input = ...
IDictionary<string, IEnumerable<string>> output = 
    input.ToDictionary(item => item.Key,
                       item => item.Value.Select(control => control.ClientID));

edited Aug 4, 2010 at 8:52

Matthew Abbott

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answered Aug 4, 2010 at 8:43

marcind

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Comments

flq · Accepted Answer · 2010-08-04 08:43:46Z

4

Without having a compiler by hand, something like this should work...

dictOne
  .ToDictionary(k=>k.Key, v=>v.Value.Select(c=>c.ClientID))

answered Aug 4, 2010 at 8:43

flq

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1 Comment

Podge Over a year ago

Thanks very much. I couldn't see the wood for the trees. I was thinking I would have to use SelectMany.

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