CODEWITHSUNDEEP
linqguid.net-core-2.0
K.Z
K.Z

Reputation: 5075

How to set Null-able Guid value in LINQ Query C#

I have Guid which I mark null-able by 

public struct abc
{
    public Guid Id { get; set; }
    public Guid? PreviousCalculatedId { get; set; }
    public Guid? NextCalculatedId { get; set; }
}

But I am getting build error on LINQ query for PreviousCalculatedId and NextCalculatedId

error

   error is cannot implicitly convert type system.Guid to bool

.

 var answerDataView = (from Calc in dbContext.Calculation
                       where Calc .abcId == abcId && Calc .Id == GivenCalcId
                        select new abc
                          {
                            Id = mylist.listedItemId,
                            Text = Calc .Value,
                            NextCalculatedId? = sortedAnswerList.ItemOnRight[0],
                            PreviousCalculatedId? = sortedAnswerList.ItemOnLeft.ElementAt(0),


                               });

Upvotes: 0

Views: 674

Answers (1)

imanshu15
imanshu15

Reputation: 764

Try this,

var answerDataView = (from Calc in dbContext.Calculation
                      where Calc .abcId == abcId && Calc .Id == GivenCalcId
                      select new abc
                      {
                            Id = mylist.listedItemId,
                            Text = Calc .Value,
                            NextCalculatedId = sortedAnswerList.ItemOnRight[0] ?? null,
                            PreviousCalculatedId = sortedAnswerList.ItemOnLeft.ElementAt(0) ?? null,
                       });

And

Upvotes: 2

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