c# - Type of conditional expression cannot be determined because there is no implicit conversion between 'lambda expression' and 'lambda expression' -

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i've collection of notes. depending on ui requesting notes, i'd exclude categories. example. if project notes popup requests notes, should exclude collection notes. 

func<note, bool> excludecollectioncategory = (ui == uirequestor.projectnotes)              ? x => x.notecategory != "collections"             : x => true; //-- error: cannot convert lambda lambda

i'm getting following error: type of conditional expression cannot determined because there no implicit conversion between 'lambda expression' , 'lambda expression'

thanks helping

the compiler doesn't infer delegate types lambda expressions. need specify delegate type using cast in first ternary clause:

var excludecollectioncategory = (ui == uirequestor.projectnotes)      ? (func<note, bool>)(x => x.notecategory != "collections")     : x => true;

the silver lining can use var instead of having specify type variable, isn't more verbose.


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