mysql - {"Keyword not supported.\r\nParameter name: port3306;username"} c# -


i'm trying connect combobox tabel in local database on line:

mysqlconnection condatabase = new mysqlconnection(constring);

i error

{"keyword not supported.\r\nparameter name: port3306;username"}

public partial class form1 : form {     public form1()     {         initializecomponent();         fillcombo();     }      void fillcombo() {         string constring = "datasource=localhost;port3306;username=username;password=password";         string query = "select * hotel";         mysqlconnection condatabase = new mysqlconnection(constring);         mysqlcommand cmddatabase = new mysqlcommand(query, condatabase);         mysqldatareader myreader;         try         {             condatabase.open();             myreader = cmddatabase.executereader();             while (myreader.read())             {                 string sname = myreader.getstring("rom_nr");                 combobox1.items.add(sname);             }          }                 {         }


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