Question

I want to create a list of anonymous objects. So I did this:

var problematicAddresses = new HashSet<dynamic>();
foreach (DataRow row in dtMeters.Rows)
{
    var billingAddress = new
    {
        address = row["BillingAddress"].ToString(),
        city = row["BillingCity"].ToString(),
        state = row["BillingState"].ToString(),
        zip = row["BillingZip"].ToString()
    };    

    // ... fill problematicAddresses without any problem

    foreach (var completeAddress in problematicAddresses)
    {
        string addr = completeAddress.address;

        // ...
    }

    // ...
}

The last line here doesn’t compile and gives me the following error:

One or more types required to compile a dynamic expression cannot be found. Are you missing references to Microsoft.CSharp.dll and System.Core.dll?

Could you please help me with this?

Thanks.

Answer 1

Make sure you have those libs included … Also, use var instead of string on the last line