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Editorial Team
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Asked: 2026-05-26T07:25:51+00:00

I am writing a silverlight framework plugin and I want to find my metadata

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I am writing a silverlight framework plugin and I want to find my metadata in global config metadata based on the metadata key. I’m using the following statement.

var metadata = smfPlayer.GlobalConfigMetadata.FirstOrDefault(item => item.Key == METADATA_ID);

I’m getting a compilation error saying:

Error 1 ‘Microsoft.SilverlightMediaFramework.Utilities.Metadata.MetadataCollection’ does not contain a definition for ‘FirstOrDefault’ and no extension method ‘FirstOrDefault’ accepting a first argument of type ‘Microsoft.SilverlightMediaFramework.Utilities.Metadata.MetadataCollection’ could be found (are you missing a using directive or an assembly reference?) C:\cygwin\home\Weijia Li\test\testplayer\ConvivaMMPPFPlugin\ConvivaMMPPFPlugin.cs 45 63 ConvivaMMPPFPlugin

Can anyone tell me what’s wrong with my code?

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1 Answer

  1. Editorial Team

    Did you import the System.Linq namespace?

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