LinqKit -> The parameter was not bound in the specified LINQ to Entities query expression

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The parameter 'p' was not bound in the specified LINQ to Entities query expression.

The goal is to create an Entity Filter that can contain other Entity Filters.

    //Called from another function in this class. q is an IQueryable<Entity>
    q = q.Where(GetPred());


    //a function in the same class as the previous statement.
    public Expression<Func<Entity, bool>> GetPred(){
        var pred = PredicateBuilder.True<Entity>();

        //No Problems with any line that is similar to this
        pred = pred.And(p => this.Manufacturer.String == p.Manufacturer);


        //here is where i am having issues Any time a query is called here it blows up 
        //when i do GetFirstOrDefault 
        //SomeChildModel is another model like the current class

        var ChildPred = this.SomeChildModel.GetPred();
        pred = pred.And(p => ChildPred.Invoke(p.SomeChildEntity));

        //it doesn't necessary blow up right here. But adding this causes my error.
        //I would like to mention, i have spent the last 3 hours trying everything i 
        //can understand from StackOverflow and other sources. Nothing i have tried 
        //is working. I am sure i am missing something Very simple here.

    }

Please let me know if I forgot any important information you might need to help answer this question.

asked 4 mins ago

Tj Pearsall

1

LinqKit -> The parameter was not bound in the specified LINQ to Entities query expression