CODEWITHSUNDEEP
vb.net
Andrew sin
Andrew sin

Reputation: 13

Conversion from string "word" to type 'Boolean' is not valid

Do While Alien(0).Text = Alien(1).Text Or Alien(2).Text Or Alien(3).Text Or Alien(4).Text Or Alien(5).Text
     rand()
     Alien(0).Text = WordBank(Word)
Loop

rand() chooses a random word inside an array and assigns the random word to the Word variable

Upvotes: 0

Views: 109

Answers (1)

Visual Vincent
Visual Vincent

Reputation: 18310

You cannot compare strings like that. You've got to re-check Alien(0).Text for every Or, otherwise it tries to evaluate your strings as Boolean values (True or False).

This is why you get the error: a string (other than "True" or "False") cannot be converted into a Boolean, because, how would the compiler know how to convert for instance "Bear" into either True or False?

Also, it is much better to use OrElse since it is short-circuited, meaning if one check succeeds it won't bother checking the rest of them.

Do While Alien(0).Text = Alien(1).Text OrElse Alien(0).Text = Alien(2).Text OrElse Alien(0).Text = Alien(3).Text OrElse Alien(0).Text = Alien(4).Text OrElse Alien(0).Text = Alien(5).Text

Upvotes: 3

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