Invalid value for key 'attachdbfilename'

Question

Invalid value for key 'attachdbfilename' error come to database connection

Mukesh Kumar · Answer

Hi you need to check your connection string. Is that valid? thanks

SL G · Answer

dbconn  connectionString=Data Source=(LocalDB)\v11.0;AttachDbFilename=|DataDirectory|\Database.mdf;Integrated Security=True;Connect Timeout=30 providerName=System.Data.SqlClient />

Mukesh Kumar · Answer

Can you show your required code after removing user name and password? thanks

SL G · Answer

i connect get connection string name put to coding but error will come