cannot be applied to operands of type 'bool' and 'char' - linq error

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I am currently struggling with the getting the bool type "sdata_ALL" parameter, in a linq where condition. the "data_ALL" field can have values 0 or 1. I am using the sql query below to convert it into linq query, but I having difficulty with the bool type parameter.

C#

public bool subs(string username, string password)
       {
           //define the query : query will be an IQueryable
           var query = from s in db.Subscriptions
                       join u in db.UserDetails on s.sUID equals u.uID
                       where s.BS_ExpiryDate >= DateTime.Now &&
                       s.sPID.Value == 163 &&
                       s.data_All.Value ==  1 &&
                       u.uUsername == username &&
                       u.uPassword == password
                       select u; //

           // "execute" the query
           return query.FirstOrDefault() != null; // if there is a result it will return true
       }

Any insight to what I may be missing or doing wrong?
Many thanks.

Posted 25-Feb-14 4:18am

miss786

Updated 22-Dec-16 16:06pm

v2

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3 solutions

Solution 3

We can get result by applying true instead of 1 in the Boolean type parameter

Example:

(from id in objeApp_SchemaEntities.AspNetUsers where id.IsAdmissionAccount == true select id.Id).FirstOrDefault();

Posted 22-Dec-16 16:06pm

Vaibhav-Systematix

Solution 2

I manage to figure out that for the boolean type, it should be true/false return.

C#

var query = from s in db.Subscriptions
                        join u in db.UserDetails on s.sUID equals u.uID
                        where s.BS_ExpiryDate >= DateTime.Now &&
                        s.sPID.Value == 163 &&
                        s.data_All.Value ==  true &&
                        u.uUsername == username &&
                        u.uPassword == password
                        select u; //

Posted 25-Feb-14 5:00am

miss786

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Krunal Rohit · Accepted Answer · 2014-02-25T04:31:00

OKay,
FirstOrDefault() returns the first element of a sequence, or a default value if the sequence contains no elements.

So if I'm not mistaken then you're getting string or maybe a char value, and the method is return bool value. Instead, what you can do is change the return type of your method.

-KR