SQL Query working with C Sharp for sqlite does not work

Question

I have a desktop application in which i have used c sharp with SQL server the below query fetches the data from the database when i am using the sql server as database but when i used sqlite database the below query does return nothing . 

tell me is there any different in writing inline queries in c sharp for sql and sqlite , or does the MAX or like function works differently in SQL and SQLITE below is my query

com.CommandText = "SELECT MAX(DocumentCode) AS DocumentCode FROM DocumentsHeader WHERE (DocumentCode LIKE @DocumentCode + '%')";

com.Parameters.Add("@DocumentCode", SqlDbType.NVarChar, 18).Value = Passvalue.ToString().Trim();

returnvalue = com.ExecuteScalar();

This query fetches record when using sql and when using sqlite it does nt fetching record while i check that my Db has the record .

any one can assists me ...