.netstandard distinctby iqueryable

.netstandard distinctby iqueryable -

public static IQueryable&lt;TSource&gt; DistinctBy&lt;TSource, TKey&gt;(
	this IQueryable&lt;TSource&gt; source,
    Expression&lt;Func&lt;TSource, TKey&gt;&gt; keySelector)
    {
    	return source.GroupBy(keySelector).Select(grouping =&gt; grouping.FirstOrDefault());
	}

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.netstandard distinctby iqueryable

.netstandard distinctby iqueryable -

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