specify Asp.net LocalSqlServer connection string in code -

normally, define connection string in web.config

is there way can specify connection string in code, in application_start?

that connection string used connect aspnetdb example:

if you're not using entity framework, can use sqlconnectionstringbuilder class.

example msdn:

sub main() ' create new dbconnctionstringbuilder, , add items  ' internal collection of key/value pairs.  dim builder new dbconnectionstringbuilder() builder.add("data source", "c:\mydata\mydb.mdb") builder.add("provider", "microsoft.jet.oledb.4.0") builder.add("jet oledb:database password", "*******") builder.add("jet oledb:system database", _     "c:\mydata\workgroup.mdb") ' set row-level locking. builder.add("jet oledb:database locking mode", 1)  ' display contents of connection string,  ' contain key/value pairs delimited  ' semicolons. console.writeline(builder.connectionstring) console.writeline()  ' clear dbconnectionstringbuilder, , assign complete  ' connection string it, demonstrate how  ' class parses connection strings. builder.clear() builder.connectionstring = _     "data source=(local);initial catalog=adventureworks;" & _     "integrated security=sspi"   ' dbconnectionstringbuilder class has parsed contents,   ' can work individual key/value pair. builder("data source") = "." console.writeline(builder.connectionstring) console.writeline()  ' because dbconnectionstringbuilder class doesn't   ' validate key/value pairs, can use class  ' store semicolon-delimited list. following  ' snippet places arbitrary string connectionstring  ' property, changes 1 of values, , displays  ' resulting string. builder.clear() builder.connectionstring = _     "value1=10;value2=20;value3=30;value4=40" builder("value2") = 25 console.writeline(builder.connectionstring) console.writeline()  builder.clear() try      ' assigning invalid connection string      ' throws argumentexception.     builder.connectionstring = "xxx"   catch ex argumentexception     console.writeline("invalid connection string.") end try  console.writeline() console.writeline("press enter finish.") console.readline() end sub