Can somebody tell me why this code is not working? when I get to the line with the ExecuteNonQuery I get an error called "one or more parameters missing".
I use a similar code for both inserting and deleting data and those are working fine.
The code is writen in Microsoft Visual c# express and I am using a access database.
string SQLUpdateString = "UPDATE tblKunde SET firmaNavn=" + firmanavn + " WHERE IdKunde=" + idkunde + "";
OleDbCommand SQLCommand = new OleDbCommand(SQLUpdateString, f1.database);
int response = SQLCommand.ExecuteNonQuery();
catch (Exception ex)