Question

I have a linq query that returns a list and the result looks like this:

protected void Page_Load(object sender, EventArgs e)
{
  var MyList = GetPatientsFromDB(TheUserID);
}

This list is of type MyModel like this:

MyModel
{
public int PatientID {get;set;}
}

Now what I’m looking to do is pass this list to a function called GetPatientInfo and return another list of MyOtherModel

MyOtherModel{
public int PatientID {get;set;}
public string Name {get;set;}
public string Region {get;set;}
}

I’m have some problems writing the second function.

I started with

public static List<MyOtherModel> GetPatientInfo(List<MyModel>
{

using (..... MyDC = new... DataContext)

{
     var OutputList = from f in MyDC.Table
                       where......?

}

I’m stuck on writing the where clause and the calling statement. Thank you for suggestions.

Answer 1

public static List<MyOtherModel> GetPatientInfo(List<MyModel list>
{
    using (..... MyDC = new... DataContext)
    {
        var result = from f in MyDC.Table
                     where list.Select(m => m.PatientID).Contains(f.PatientID)
                     select f;

        return result.ToList();
    }
}