Question

I have a search that returns a result that is dynamic. So I am trying to just show a label if there are no results found. The problem i am having is i dont know how to count the result because it is dynamic and is not equal to a type.

The error message is :

Operator ‘!=’ Cannot be applied ot operands of type
System.Collections.Generic.List and int

 if (Page.IsValid)
            {


                string keyword = txtSearch.Text.Trim();
                List<dynamic> results = SearchItems(keyword);
                List<dynamic> Cresults = SearchContacts(keyword);



               if(results != 0 || Cresults !=0)
               {


                    //bind and return
                    LVI.DataSource = results;
                    LVI.DataBind();
                    // System.Threading.Thread.Sleep(500);

                    //Contact Bind return
                    LVC.DataSource = Cresults;
                    LVC.DataBind();
                    //  System.Threading.Thread.Sleep(250);


                    lvAdmin.DataSource = results;
                    lvAdmin.DataBind();


                    LVCAdmin.DataSource = Cresults;
                    LVCAdmin.DataBind();
               }
               else{

                    NoResults.Visible = true;

               }

Answer 1

You cannot just do:

if(results != 0 || Cresults !=0)
{

}

That way your comparing the actual List to 0, which obviously fails.

Just do:

if(results.Count != 0 || Cresults.Count !=0)
{

}

Or:

if(results.Any() || Cresults.Any())
{

}