Option Strict On disallows implicit conversions from 'Boolean?' to 'Boolean'

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1

Is there something wrong with this expression?

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2

@Luis_Fernando

Just to check can you try .Equals(0)

Cheers

3

same :frowning:

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4

we can replicate by involving a nullable boolean variable:
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And can explore the value access options and check
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Within a small snippet we can provoke the issue
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And rewrite to:
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5

Hi @Luis_Fernando

Could you give a try the below one,

If(list_itemsComanda.data.Where(Function(X) X.session = ent_DataosApoyo.sesion).Count=0,True,False)

Hope it helps!!

6

The VB .Where method can only take in Boolean as a predicate. Since x.sesion = ent_DatosApoyo.sesion evaluates to data of type Nullable Boolean, you need to get the Boolean value of the expression with the following (x.sesion = ent_DatosApoyo.sesion).Value.

7

Hi thank you for the attention

I tried this and it does not work

8

what was done in detail? What is failling?

9

Hello @eaghuang

Great! this did work, Thank you very much!!

10

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