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c#linqcontains

Using Linq to do a Contains with multiple values


I have a medication table that I'm looking for certain drug names, but I need to search for multiple names. Here is where I currently am with it.

string[] names = new string[2];
names[0] = "apixaban";
names[1] = "desirudin";

var meds = (from m in Medications where names.Any(m.BrandName.Contains) || names.Any(m.GenericName.Contains) select m);

What I have isn't working, and I'm currently stuck. I know I'm close, but I can't quite figure out what's wrong.

EDIT

For clarification, if the name I'm searching for is desirudin, then the BrandName or Generic name will be longer, so I have to have the contains on the field in the database.

EDIT 2 Here is the error I recieve.

Unsupported overload used for query operator 'Any'.

Here is what I finally ended up with

var meds = (from m in db.AdmissionMedications where 
(names.Any(n => m.BrandName.Contains(n)) || names.Any(n => m.GenericName.Contains(n))
) select m);

Solution

  • Maybe somthing like

    C# Linq:

    var meds = (from m in Medications 
                where names.Any(name => name.Equals(m.BrandName) || m.GenericName.Contains(name)) 
                select m);
    

    Extension methods:

    List<Medication> meds = Medications
        .Where( med =>
            names.Any( name =>
                name.Equals( med.BrandName ) || med.GenericName.Contains( name )
            )
        )
        .ToList();